技术领域technical field
本发明涉及通信技术领域，尤其涉及一种光传送网的管理方法和装置。The invention relates to the technical field of communication, in particular to a management method and device for an optical transport network.
背景技术Background technique
随着传送网的带宽成倍增长，光传送网（Optical Transport Network，OTN）技术为传送网通过大管道传送光信号提供了更为灵活的调度方式，OTN中由于需要传送的光信号多种类型的业务层次，故光信号之间的复用关系也存在有多种，这必然会导致资源管理和路径计算的复杂度较高。As the bandwidth of the transport network doubles, the Optical Transport Network (OTN) technology provides a more flexible scheduling method for the transport network to transmit optical signals through large pipes. In OTN, various types of optical signals need to be transmitted Therefore, there are multiple multiplexing relationships between optical signals, which will inevitably lead to high complexity in resource management and path calculation.
在OTN中的光信号映射结构中，低阶等级的光信号可以从低层光数据单元（Optical Data Unit，ODU）中输出，多个低阶等级的光信号可以复用到高层光数据单元中，从而输出高阶等级的光信号，高阶等级的光信号可以传送到光波长通道（OpticalChannel，OCh）上。In the optical signal mapping structure in OTN, low-level optical signals can be output from low-level optical data units (Optical Data Unit, ODU), and multiple low-level optical signals can be multiplexed into high-level optical data units. In this way, a high-order optical signal is output, and the high-order optical signal can be transmitted to an optical wavelength channel (Optical Channel, OCh).
现有技术中光信号的复用可以有多种方式，以一层光数据单元（Optical DataUnit1，ODU1）对光信号的复用为例，例如可能存在两种复用模式，一种是将光信号从ODU1复用到二层光数据单元（Optical Data Unit2，ODU2），然后光信号再从ODU2复用到三层光数据单元（Optical Data Unit3，ODU3），另一种是将光信号从ODU1直接复用到ODU3。There are many ways to multiplex optical signals in the prior art. Taking the multiplexing of optical signals by a layer of optical data unit (Optical DataUnit1, ODU1) as an example, for example, there may be two multiplexing modes, one is to combine optical The signal is multiplexed from ODU1 to the second-layer optical data unit (Optical Data Unit2, ODU2), and then the optical signal is multiplexed from ODU2 to the third-layer optical data unit (Optical Data Unit3, ODU3), and the other is to send the optical signal from ODU1 Directly multiplexed to ODU3.
在理想情况下，一条低阶的光信号业务全部都由与业务本身级别一致的交叉调度来完成，但是基于管理效率的原因，在实际网络的运营维护中仍然存在大量采用高阶交叉桥接低阶信号的情况，例如，最低阶等级的光信号从ODU0复用ODU2时，可能现有的网络中没有与该最低阶等级级别一致的交叉调度，故只能采用高阶信号交叉桥接低阶信号的方式来实现光信号的传送。Ideally, a low-order optical signal service is all completed by cross-scheduling at the same level as the service itself. However, for reasons of management efficiency, there are still a large number of high-order cross-bridging low-order optical signal services in actual network operation and maintenance. In the case of signals, for example, when the lowest-order optical signal is multiplexed from ODU0 to ODU2, there may be no cross-scheduling consistent with the lowest-order level in the existing network, so only high-order signals can be used to bridge low-order signals way to realize the transmission of optical signals.
但是本发明的发明人在实现本发明的过程中发现，对于低阶等级的光信号能否利用高阶信号交叉桥接低阶信号的方式，取决于在高阶信号交叉中是否仍然存在空闲的低阶通道，故仍然具有非常大的不确定性，若不能使用高阶信号交叉桥接低阶信号的方式，则需要重新建立与低阶等级的光信号的业务等级相一致的交叉调度，故会造成带宽资源利用效率较低。However, the inventors of the present invention found in the process of realizing the present invention that whether the low-order optical signals can be bridged by high-order signal crossovers depends on whether there are idle low-order signal crossovers in the high-order signal crossovers. Therefore, there is still a very large uncertainty. If the high-order signal cannot be used to cross-bridge the low-order signal, it is necessary to re-establish the cross-scheduling consistent with the service level of the low-order optical signal, which will cause The utilization efficiency of bandwidth resources is low.
发明内容Contents of the invention
本发明实施例提供了一种光传送网的管理方法和装置，用于提高带宽资源的利用效率。Embodiments of the present invention provide a management method and device for an optical transport network, which are used to improve the utilization efficiency of bandwidth resources.
为解决上述技术问题，本发明实施例提供以下技术方案：In order to solve the above technical problems, embodiments of the present invention provide the following technical solutions:
第一方面，本发明实施例提供一种光传送网的管理方法，包括：In a first aspect, an embodiment of the present invention provides a method for managing an optical transport network, including:
获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息；Obtain the bandwidth resource distribution information of multiple sites in the OTN routing system and the opening information of inter-site paths between adjacent sites;
根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径，其中，所述第一服务层路径包括所述多个站点中任意两个站点之间的多个光信号级别分别对应的路由段，每个路由段对应有源端、宿端以及源宿端交叉信息；Generate a first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent sites, where the first service layer path includes multiple links between any two sites in the multiple sites Each routing segment corresponds to each optical signal level, and each routing segment corresponds to the source end, sink end, and source-sink end crossover information;
根据所述第一服务层路径中的第一路由段的源宿端交叉信息判断所述第一路由段的源宿端交叉是否一致；judging whether the source-destination crossover of the first routing segment is consistent according to the source-destination crossover information of the first routing segment in the first service layer path;
若所述第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，所述第二服务层路径包括所述多个站点中除所述第一服务层路径包括的两个站点以外的其它两个站点之间的多个光信号级别对应的路由段；If the source-sink end crossings of the first routing segment are inconsistent, obtain a second routing segment in the second service layer path corresponding to the source-sink end crossing that is inconsistent with the crossing, and the second service layer path includes the plurality of sites Routing segments corresponding to multiple optical signal levels between other two sites other than the two sites included in the first service layer path;
对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径，所述第三服务层路径包括虚拟路由段，所述虚拟路由段的源端为所述第一路由段的源端且所述虚拟路由段的宿端为所述第二路由段的宿端，或，所述虚拟路由段的源端为所述第二路由段的源端且所述虚拟路由段的宿端为所述第一路由段的宿端。merging the first routing segment in the first service layer path and the second routing segment in the second service layer path to generate a third service layer path, where the third service layer path includes a virtual routing segment, The source end of the virtual routing segment is the source end of the first routing segment and the sink end of the virtual routing segment is the sink end of the second routing segment, or, the source end of the virtual routing segment is the The source end of the second routing segment and the sink end of the virtual routing segment are the sink end of the first routing segment.
结合第一方面，在第一方面的第一种可能的实现方式中，若所述第一路由段的源宿端交叉不一致，将交叉不一致的源宿端交叉对应的第一服务层路径中的第一路由段的状态更新为占用。With reference to the first aspect, in the first possible implementation manner of the first aspect, if the source-sink end crossings of the first routing segment are inconsistent, the source-sink end crossing with inconsistent crossings in the corresponding first service layer path The status of the first routing segment is updated to occupied.
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段之后，还包括：With reference to the first possible implementation of the first aspect, in the second possible implementation of the first aspect, the acquiring the second route in the second service layer path corresponding to the source-sink cross that is inconsistent with the cross After the paragraph, also include:
若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端为接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用或空闲；If the source end of the second routing section in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover is the tributary port for accessing the optical signal, the second routing section in the second service layer path The status is updated as occupied or free;
若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端不是接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用。If the source end of the second routing section in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover is not the tributary port for accessing the optical signal, the second routing section in the second service layer path Status updated to Occupied.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第三种可能的实现方式中，若所述源宿端交叉一致，所述方法还包括：In combination with the first aspect or the first possible implementation or the second possible implementation of the first aspect, in the third possible implementation of the first aspect, if the source-sink crossover is consistent, the method further includes :
若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均无交叉，更新所述第一路由段的状态为空闲；If the crossover of the source and sink ends is consistent, specifically, neither the source end nor the sink end of the first routing segment has crossover, updating the state of the first routing segment to be idle;
若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均有交叉，更新所述第一路由段的状态为占用。If the crossover of the source and sink ends is consistent, specifically, both the source end and the sink end of the first routing segment are crossed, updating the state of the first routing segment to occupied.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第四种可能的实现方式中，所述根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径之后，还包括：With reference to the first aspect or the first possible or second possible implementation of the first aspect, in a fourth possible implementation of the first aspect, the After the first service layer path is generated by the inter-site path activation information of the site, it also includes:
若所述第一服务层路径包括的站点上已经配置了业务交叉，将与所述业务交叉相应的光信号级别对应的路由段的状态更新为占用。If a service crossover has been configured on the site included in the first service layer path, update the status of the routing segment corresponding to the optical signal level corresponding to the service crossover to occupied.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第五种可能的实现方式中，所述根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径之后，还包括：With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the After the first service layer path is generated by the inter-site path activation information of the site, it also includes:
若所述第一服务层路径中的所有路由段的状态为空闲或占用的其中一种状态，根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第四服务层路径，其中，所述第四服务层路径包括的两个站点至少有一个站点和所述第一服务层路径包括的两个站点不相同。If the state of all routing segments in the first service layer path is idle or occupied, generate a fourth service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent site , wherein at least one of the two sites included in the fourth service layer trail is different from the two sites included in the first service layer trail.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第六种可能的实现方式中，所述对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径之后，还包括：With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the first The routing segment is merged with the second routing segment in the second service layer path, and after the third service layer path is generated, it also includes:
判断所述第一服务层路径中除所述第一路由段以外的其它路由段的源宿端交叉是否一致，并按照对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述第一服务层路径中除所述第一路由段以外的其它路由段进行处理，直到将所述第一服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。Judging whether the source-destination crossovers of other routing segments other than the first routing segment in the first service layer path are consistent, and processing according to whether the source-destination crossings of the first routing segment are consistent The other routing segments in the first service layer path except the first routing segment are processed until the source-destination crossover of all routing segments in the first service layer path is judged to be consistent. .
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第七种可能的实现方式中，所述对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径之后，还包括：With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the first The routing segment is merged with the second routing segment in the second service layer path, and after the third service layer path is generated, it also includes:
判断所述第三服务层路径中的虚拟路由段的源宿端交叉是否一致，并按照对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述虚拟路由段进行处理，直到将所述第三服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。judging whether the source-destination crossover of the virtual routing segment in the third service layer path is consistent, and processing the virtual routing segment according to the processing method for whether the source-destination crossing of the first routing segment is consistent Processing until the determination of whether the source-destination end intersections of all routing segments in the third service layer path are consistent is completed.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第八种可能的实现方式中，所述对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径之后，还包括：With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the first The routing segment is merged with the second routing segment in the second service layer path, and after the third service layer path is generated, it also includes:
接收用户发送的光信号；Receive the optical signal sent by the user;
根据所述光信号的信号级别从所述OTN路由系统中选择相应的虚拟路由段；Selecting a corresponding virtual routing segment from the OTN routing system according to the signal level of the optical signal;
对选择出的虚拟路由段对应的站点进行交叉配置；Perform cross configuration on the site corresponding to the selected virtual routing segment;
使用交叉配置后的站点对所述光信号进行传送。The optical signal is transmitted by using the cross-configured site.
第二方面，本发明实施例还提供一种光传送网的管理装置，包括：In a second aspect, an embodiment of the present invention further provides a management device for an optical transport network, including:
信息获取模块，用于获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息；An information acquisition module, configured to acquire bandwidth resource distribution information of multiple sites in the OTN routing system and inter-site path opening information of adjacent sites;
路径生成模块，用于根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径，其中，所述第一服务层路径包括所述多个站点中任意两个站点之间的多个光信号级别分别对应的路由段，每个路由段对应有源端、宿端以及源宿端交叉信息；A path generating module, configured to generate a first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent sites, where the first service layer path includes any two of the multiple sites Routing sections corresponding to multiple optical signal levels between sites, and each routing section corresponds to the source end, sink end, and source-sink end cross information;
交叉判断模块，用于根据所述第一服务层路径中的第一路由段的源宿端交叉信息判断所述第一路由段的源宿端交叉是否一致；A crossover judging module, configured to judge whether the source-sink crossover of the first routing segment is consistent according to the source-sink crossover information of the first routing segment in the first service layer path;
路由段获取模块，用于若所述第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，所述第二服务层路径包括所述多个站点中除所述第一服务层路径包括的两个站点以外的其它两个站点之间的多个光信号级别对应的路由段；A routing segment obtaining module, configured to obtain a second routing segment in the second service layer path corresponding to the source-sink crossing of the first routing segment if the source-sink crossing of the first routing segment is inconsistent, and the second service layer The path includes routing segments corresponding to multiple optical signal levels between the other two sites among the multiple sites except the two sites included in the first service layer path;
路由段合并模块，用于对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径，所述第三服务层路径包括虚拟路由段，所述虚拟路由段的源端为所述第一路由段的源端且所述虚拟路由段的宿端为所述第二路由段的宿端，或，所述虚拟路由段的源端为所述第二路由段的源端且所述虚拟路由段的宿端为所述第一路由段的宿端。A routing segment merging module, configured to merge the first routing segment in the first service layer path and the second routing segment in the second service layer path to generate a third service layer path, and the third service layer path The layer path includes a virtual routing segment, the source end of the virtual routing segment is the source end of the first routing segment and the sink end of the virtual routing segment is the sink end of the second routing segment, or, the virtual routing segment The source end of the routing segment is the source end of the second routing segment and the sink end of the virtual routing segment is the sink end of the first routing segment.
结合第一方面，在第一方面的第一种可能的实现方式中，所述OTN的管理装置还包括：With reference to the first aspect, in a first possible implementation manner of the first aspect, the OTN management device further includes:
第一状态更新模块，用于若所述第一路由段的源宿端交叉不一致，将交叉不一致的源宿端交叉对应的第一服务层路径中的第一路由段的状态更新为占用。The first status update module is configured to update the status of the first routing segment in the first service layer path corresponding to the source-sink cross of the first routing segment to occupied if the source-sink cross of the first routing segment is inconsistent.
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述OTN的管理装置还包括：With reference to the first possible implementation of the first aspect, in the second possible implementation of the first aspect, the OTN management device further includes:
第二状态更新模块，用于若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端为接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用或空闲；若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端不是接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用。The second status update module is configured to update the second service layer if the source end of the second routing segment in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover is a tributary port for accessing optical signals The status of the second routing segment in the path is updated to occupied or idle; if the source end of the second routing segment in the second service layer path corresponding to the source-sink end cross-connection inconsistent with the cross-connection is not a tributary port for accessing optical signals, updating the state of the second routing segment in the second service layer path to occupied.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第三种可能的实现方式中，若所述源宿端交叉一致，所述OTN的管理装置还包括：In combination with the first aspect or the first possible or second possible implementation of the first aspect, in the third possible implementation of the first aspect, if the cross-connection between the source and sink ends is consistent, the management of the OTN The device also includes:
第三状态更新模块，用于若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均无交叉，更新所述第一路由段的状态为空闲；若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均有交叉，更新所述第一路由段的状态为占用。The third state update module is used to update the state of the first routing segment as idle if the source and sink crossovers are consistent, specifically, neither the source end nor the sink end of the first routing segment is crossovered; if the source The sink-end cross-consistency specifically means that both the source end and the sink end of the first routing segment are cross-connected, and the state of the first routing segment is updated to occupied.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第四种可能的实现方式中，所述OTN的管理装置还包括：With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the OTN management device further includes:
第四状态更新模块，用于若所述第一服务层路径包括的站点上已经配置了业务交叉，将与所述业务交叉相应的光信号级别对应的路由段的状态更新为占用。The fourth status update module is configured to update the status of the routing segment corresponding to the optical signal level corresponding to the service crossover to occupied if the service crossover has been configured on the site included in the first service layer path.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第五种可能的实现方式中，In combination with the first aspect or the first possible or second possible implementation of the first aspect, in the fifth possible implementation of the first aspect,
所述路径生成模块，还用于若所述第一服务层路径中的所有路由段的状态已经为空闲或占用的其中一种状态，根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第四服务层路径，其中，所述第四服务层路径包括的两个站点至少有一个站点和所述第一服务层路径包括的两个站点不相同。The path generating module is further configured to: if the state of all routing segments in the first service layer path has been idle or occupied, according to the bandwidth resource distribution information and the station of the adjacent station Generate a fourth service layer trail based on inter-path opening information, where at least one of the two sites included in the fourth service layer trail is different from the two sites included in the first service layer trail.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第六种可能的实现方式中，In combination with the first aspect or the first possible or second possible implementation of the first aspect, in the sixth possible implementation of the first aspect,
所述交叉判断模块，还用于判断所述第一服务层路径中除所述第一路由段以外的其它路由段的源宿端交叉是否一致，并按照所述路由段获取模块和所述路由段合并模块对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述第一服务层路径中除所述第一路由段以外的其它路由段进行处理，直到将所述第一服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。The crossover judging module is also used to judge whether the source-destination crossovers of other routing segments in the first service layer path except the first routing segment are consistent, and according to the routing segment acquisition module and the routing The section merging module separately processes whether the source-sink crossover of the first routing section is consistent with other routing sections in the first service layer path except the first routing section, until all Whether the source-sink crossovers of all routing segments in the first service layer path are consistent is judged.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第七种可能的实现方式中，In combination with the first aspect or the first possible or second possible implementation of the first aspect, in the seventh possible implementation of the first aspect,
所述交叉判断模块，还用于判断所述第三服务层路径中的虚拟路由段的源宿端交叉是否一致，并按照所述路由段获取模块和所述路由段合并模块对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述虚拟路由段进行处理，直到将所述第三服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。The crossover judging module is also used to judge whether the source-destination crossover of the virtual routing segment in the third service layer path is consistent, and according to the routing segment acquisition module and the routing segment merging module for the first Whether the source-destination crossovers of the routing segments are consistent is processed separately for the virtual routing segment until the determination of whether the source-sink crossings of all the routing segments in the third service layer path are consistent is completed.
结合第一方面或第一方面的第一种可能或第二种可能的实现方式，在第一方面的第八种可能的实现方式中，所述OTN的管理装置还包括：With reference to the first aspect or the first possible implementation manner or the second possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the OTN management device further includes:
信号接收模块，用于接收用户发送的光信号；The signal receiving module is used to receive the optical signal sent by the user;
路由计算模块，用于根据所述光信号的信号级别从所述OTN路由系统中选择相应的虚拟路由段；A routing calculation module, configured to select a corresponding virtual routing segment from the OTN routing system according to the signal level of the optical signal;
交叉配置模块，用于对选择出的虚拟路由段对应的站点进行交叉配置；A cross-configuration module, configured to perform cross-configuration on the site corresponding to the selected virtual routing segment;
信号传送模块，用于使用交叉配置后的站点对所述光信号进行传送。The signal transmission module is configured to transmit the optical signal using the cross-configured site.
从以上技术方案可以看出，本发明实施例具有以下优点：It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:
在本发明实施例中，获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息，根据获取到的带宽资源分布信息和站间路径开通信息生成第一服务层路径，根据第一服务层路径中的第一路由段的源宿端交叉信息判断第一路由段的源宿端交叉是否一致；若第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径，其中，第三服务层路径包括的虚拟路由段为对第一路由段和第二路由段进行合并得到，通过对交叉不一致的源宿端交叉对应的多个服务层路径的路由段的合并，可以实现站点已经配置的高阶信号交叉桥接与低阶通道的合并，将路由段合并得到的虚拟路由段用于光信号的传送时，就可以实现使用高阶信号交叉桥接低阶信号的方式传送光信号，无需重新建立与低阶等级的光信号的业务等级相一致的交叉调度，提高带宽资源利用效率。In the embodiment of the present invention, the bandwidth resource distribution information of multiple sites in the OTN routing system and the inter-site path opening information of adjacent sites are obtained, and the first service layer is generated according to the obtained bandwidth resource distribution information and inter-site path opening information path, according to the source-sink cross information of the first routing segment in the first service layer path, it is judged whether the source-sink crossing of the first routing segment is consistent; if the source-sink crossing of the first routing segment is inconsistent, obtain the The source and sink ends cross the second routing segment in the corresponding second service layer path, merge the first routing segment in the first service layer path and the second routing segment in the second service layer path, and generate the third service layer Path, wherein, the virtual routing segment included in the third service layer path is obtained by merging the first routing segment and the second routing segment, by merging the routing segments of multiple service layer paths corresponding to the source-sink crossing inconsistent , which can realize the combination of high-order signal cross-bridge and low-order channel already configured at the site. When the virtual routing segment obtained by merging the routing segment is used for optical signal transmission, the method of using high-order signal cross-bridge to low-order signal can be realized When transmitting optical signals, there is no need to re-establish cross-scheduling consistent with the service level of low-level optical signals, which improves the utilization efficiency of bandwidth resources.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域的技术人员来讲，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings.
图1为本发明实施例提供的一种光传送网的管理方法的流程方框示意图；FIG. 1 is a schematic flow block diagram of a method for managing an optical transport network provided by an embodiment of the present invention;
图2为本发明实施例提供的OTN路由系统中光信号的映射结构示意图；FIG. 2 is a schematic diagram of a mapping structure of an optical signal in an OTN routing system provided by an embodiment of the present invention;
图3为本发明实施例中OTN路由系统的一种架构部署示意图；FIG. 3 is a schematic diagram of an architecture deployment of an OTN routing system in an embodiment of the present invention;
图4为本发明实施例中提供的生成第三服务层路径的实现方式示意图；FIG. 4 is a schematic diagram of an implementation of generating a third service layer path provided in an embodiment of the present invention;
图5-a为本发明实施例提供的初始状态下网络带宽资源分布示意图；Figure 5-a is a schematic diagram of network bandwidth resource distribution in an initial state provided by an embodiment of the present invention;
图5-b为本发明实施例提供的站点D存在ODU1交叉后的网络带宽资源分布示意图；Fig. 5-b is a schematic diagram of network bandwidth resource distribution after ODU1 crossover exists at site D provided by the embodiment of the present invention;
图6为本发明实施例提供的OTN的管理装置的功能架构示意图；FIG. 6 is a schematic diagram of a functional architecture of an OTN management device provided by an embodiment of the present invention;
图7为本发明实施例中OTN的管理方法的一种应用场景示意图；FIG. 7 is a schematic diagram of an application scenario of an OTN management method in an embodiment of the present invention;
图8-a为本发明实施例提供的一种OTN的管理装置的组成结构示意图；FIG. 8-a is a schematic diagram of the composition and structure of an OTN management device provided by an embodiment of the present invention;
图8-b为本发明实施例提供的另一种OTN的管理装置的组成结构示意图；FIG. 8-b is a schematic diagram of the composition and structure of another OTN management device provided by an embodiment of the present invention;
图8-c为本发明实施例提供的另一种OTN的管理装置的组成结构示意图；FIG. 8-c is a schematic diagram of the composition and structure of another OTN management device provided by an embodiment of the present invention;
图8-d为本发明实施例提供的另一种OTN的管理装置的组成结构示意图；FIG. 8-d is a schematic diagram of the composition and structure of another OTN management device provided by an embodiment of the present invention;
图8-e为本发明实施例提供的另一种OTN的管理装置的组成结构示意图；FIG. 8-e is a schematic structural diagram of another OTN management device provided by an embodiment of the present invention;
图8-f为本发明实施例提供的另一种OTN的管理装置的组成结构示意图；FIG. 8-f is a schematic diagram of the composition and structure of another OTN management device provided by an embodiment of the present invention;
图9为本发明实施例提供的另一种OTN的管理装置的组成结构示意图。FIG. 9 is a schematic diagram of the composition and structure of another OTN management device provided by an embodiment of the present invention.
具体实施方式detailed description
本发明实施例提供了一种光传送网的管理方法和装置，用于提高带宽资源的利用效率。Embodiments of the present invention provide a management method and device for an optical transport network, which are used to improve the utilization efficiency of bandwidth resources.
为使得本发明的发明目的、特征、优点能够更加的明显和易懂，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，下面所描述的实施例仅仅是本发明一部分实施例，而非全部实施例。基于本发明中的实施例，本领域的技术人员所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，这仅仅是描述本发明的实施例中对相同属性的对象在描述时所采用的区分方式。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，以便包含一系列单元的过程、方法、系统、产品或设备不必限于那些单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它单元。The terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, and this is merely a description of the manner in which objects with the same attribute are described in the embodiments of the present invention. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, product, or apparatus comprising a series of elements is not necessarily limited to those elements, but may include elements not expressly included. Other elements listed explicitly or inherent to the process, method, product, or apparatus.
以下分别进行详细说明。Each will be described in detail below.
本发明光传送网的管理方法的一个实施例，可应用于光传送网（OpticalTransport Network，OTN）路由系统中，该方法可包括：获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息；根据上述带宽资源分布信息和上述相邻站点的站间路径开通信息生成第一服务层路径，其中，第一服务层路径包括上述多个站点中任意两个站点之间的多个光信号级别分别对应的路由段，每个路由段对应有源端、宿端以及源宿端交叉信息；根据第一服务层路径中的第一路由段的源宿端交叉信息判断第一路由段的源宿端交叉是否一致；若第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，其中，第二服务层路径包括上述多个站点中除第一服务层路径包括的两个站点以外的其它两个站点之间的多个光信号级别对应的路由段；对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径，其中，第三服务层路径包括虚拟路由段，虚拟路由段的源端为第一路由段的源端且虚拟路由段的宿端为第二路由段的宿端，或，虚拟路由段的源端为第二路由段的源端且虚拟路由段的宿端为第一路由段的宿端。An embodiment of the management method of the optical transport network of the present invention can be applied in the optical transport network (Optical Transport Network, OTN) routing system, and the method can include: obtaining the bandwidth resource distribution information of multiple sites in the OTN routing system and the adjacent Inter-station path opening information of the site; a first service layer path is generated according to the above-mentioned bandwidth resource distribution information and the inter-station path opening information of the above-mentioned adjacent sites, wherein the first service layer path includes any two of the above-mentioned multiple sites The routing segments corresponding to the multiple optical signal levels between each routing segment correspond to the source end, the sink end, and the source-sink end cross information; judge according to the source-sink end cross information of the first routing segment in the first service layer path Whether the source-sink crossover of the first routing segment is consistent; if the source-sink end crossover of the first routing segment is inconsistent, obtain the second routing segment in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover, where the first The second service layer path includes routing segments corresponding to multiple optical signal levels between the other two sites except the two sites included in the first service layer path among the above multiple sites; for the first service layer path in the first service layer path The routing segment and the second routing segment in the second service layer path are merged to generate a third service layer path, wherein the third service layer path includes a virtual routing segment, and the source end of the virtual routing segment is the source end of the first routing segment And the sink end of the virtual routing segment is the sink end of the second routing segment, or, the source end of the virtual routing segment is the source end of the second routing segment and the sink end of the virtual routing segment is the sink end of the first routing segment.
请参阅图1所示，本发明一个实施例提供的光传送网的管理方法，具体可以包括如下步骤：Referring to Fig. 1, the management method of an optical transport network provided by an embodiment of the present invention may specifically include the following steps:
101、获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息。101. Obtain bandwidth resource distribution information of multiple sites in an OTN routing system and inter-site path opening information of adjacent sites.
在本发明实施例中，OTN路由系统中包括有多个站点，每个站点可以根据业务转发规则对光信号进行转发，相邻的两个站点可以接收到对端站点发送的光信号或者控制信令，来自客户端的光信号根据业务转发规则在OTN路由系统中进行复用，然后通过光波长通道（Optical Channel，OCh）进行远距离传输。In the embodiment of the present invention, the OTN routing system includes multiple sites, and each site can forward optical signals according to service forwarding rules, and two adjacent sites can receive optical signals or control signals sent by peer sites. According to the order, the optical signals from the client are multiplexed in the OTN routing system according to the service forwarding rules, and then transmitted through the optical wavelength channel (Optical Channel, OCh) for long-distance.
举例说明如下，请参阅如图2所示，为本发明实施例提供的OTN路由系统中光信号的映射结构示意图，其中，图2为对光信号的复用的说明示意图，在图2中省略了与光信号调度无关的模块，客户端信号（Client Signal）首先输入到ODU0，然后输出低阶等级的ODU0信号，两个ODU0信号复用到ODU1中，另外也可以将8个ODU0信号复用到ODU2中，ODU1还可以输入客户端信号，ODU1输出的光信号可以复用到OCh2上，然后通过OCh2进行远距离传输，另外ODU1输出的ODU1信号还可以进一步的复用，将4个ODU1信号复用到ODU2中，由ODU2将复用后的光信号传送到OCh1上，然后通过OCh1进行远距离传输。Examples are as follows, please refer to Figure 2, which is a schematic diagram of the mapping structure of optical signals in the OTN routing system provided by the embodiment of the present invention, wherein Figure 2 is a schematic diagram illustrating the multiplexing of optical signals, which is omitted in Figure 2 A module that has nothing to do with optical signal scheduling is added. The client signal (Client Signal) is first input to ODU0, and then the low-level ODU0 signal is output. Two ODU0 signals are multiplexed into ODU1. In addition, 8 ODU0 signals can also be multiplexed. To ODU2, ODU1 can also input client signals, and the optical signal output by ODU1 can be multiplexed to OCh2, and then carried out long-distance transmission through OCh2. In addition, the ODU1 signal output by ODU1 can be further multiplexed, and the four ODU1 signals Multiplexed into ODU2, ODU2 transmits the multiplexed optical signal to OCh1, and then carries out long-distance transmission through OCh1.
需要说明的是，上述实施例中是基于ODU2、ODU1、ODU0三个光信号级别进行说明的，但是本发明实施可以覆盖所有OTN电层信号体系，当存在可配置光分插复用模块（Reconfigurable Optical Add Drop Module，ROADM）光层调度时，本发明实施例提供的OTN的管理方法也可以扩展到光波长信道穿通调度条件下的路由计算，另外本发明实施例中提供的OTN的管理方法还可以适用于同步数字系列（Synchronous Digital Hierarchy，SDH）的VC4、VC3、VC12三个光信号级别的调度，VC4是155M的光信号，VC3是42M的光信号，VC12是2M的光信号，同样存在高低阶的等级关系，当VC4和VC3需要进行高阶穿通时，本发明实施例中提供的OTN的管理方法也同样适用。It should be noted that the above-mentioned embodiment is based on the three optical signal levels of ODU2, ODU1, and ODU0. However, the implementation of the present invention can cover all OTN electrical layer signal systems. Optical Add Drop Module (ROADM) optical layer scheduling, the OTN management method provided in the embodiment of the present invention can also be extended to route calculation under the condition of optical wavelength channel pass-through scheduling, and the OTN management method provided in the embodiment of the present invention also includes It can be applied to the scheduling of three optical signal levels of VC4, VC3, and VC12 in Synchronous Digital Hierarchy (SDH). VC4 is a 155M optical signal, VC3 is a 42M optical signal, and VC12 is a 2M optical signal. For the hierarchical relationship between high and low order, when VC4 and VC3 need to perform high-order pass-through, the OTN management method provided in the embodiment of the present invention is also applicable.
在本发明实施例中，OTN路由系统包括有多个站点，各个站点之间的连接关系由用户来部署，举例说明如下，请参阅如图3所示，为本发明实施例中OTN路由系统的一种架构部署示意图，其中，OTN路由系统包括有7个站点，分别为站点A、站点B、站点A、站点C、站点D、站点E、站点G、站点H、站点I，站点A的相邻站点为站点B和站点E，站点D的相邻站点为站点C、站点E、站点I。例如用户可以配置业务转发规则为从站点A作为源端，依次转发给站点E、站点D、站点I、站点H，H作为宿端，如图3中的箭头线条所示。另外，本发明实施例中相邻站点之间的光波长信道称之为路由段，当路由段用于承载的光信号级别不同时，相邻站点之间就可以有多个光信号级别分别对应的路由段，例如在图3中，站点A和站点E这两个相邻站点之间就存在有路由段AE，同样的，站点E和站点D这两个相邻站点之间就存在路由段ED，并且路由段用于承载的光信号级别不同时，在相邻站点之间就存在多个路由段。In the embodiment of the present invention, the OTN routing system includes multiple sites, and the connection relationship between each site is deployed by the user. The example is as follows. Please refer to FIG. 3, which is the OTN routing system in the embodiment of the present invention A schematic diagram of architecture deployment, wherein the OTN routing system includes 7 sites, namely site A, site B, site A, site C, site D, site E, site G, site H, site I, and the corresponding sites of site A The adjacent sites are site B and site E, and the adjacent sites of site D are site C, site E, and site I. For example, the user can configure the service forwarding rule to forward the service from site A as the source end to site E, site D, site I, and site H in turn, and H as the sink end, as shown by the arrow lines in Figure 3. In addition, in the embodiment of the present invention, the optical wavelength channel between adjacent sites is called a routing segment. When the routing segment is used to carry different levels of optical signals, there can be multiple optical signal levels corresponding to each other between adjacent sites. For example, in Figure 3, there is a routing segment AE between the two adjacent sites, Site A and Site E, and similarly, there is a routing segment between the two adjacent sites, Site E and Site D ED, and the routing segments are used to carry different levels of optical signals, there are multiple routing segments between adjacent sites.
在本发明实施例中，首先获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息，其中带宽资源分布信息可以通过对OTN路由系统的带宽资源采集得到，具体可以周期性的采集各个站点的带宽资源分布信息，站点的带宽资源分布信息指的是OTN路由系统中该站点当前的带宽资源分配情况，通过对各个站点的带宽资源分布信息的获取，可以获取到OTN路由系统中各个站点当前的总带宽资源、被占用的带宽资源、空闲的带宽资源，从而可以判断出OTN路由系统中各个站点还可以承载多少个光信号，以及能够承载什么级别的光信号。另外，站间路径开通信息指的是相邻站点之间是否已经开通的信息，其中，站点之间是否已经开通可以指的是管理员是否配置了站点之间的光波长通道，若站点之间已经配置了光波长通道可以认为站点之间已经开通，若站点之间没有配置光波长通道，则可以认为站点之间没有开通，另外，站点之间是否已经开通还可以指的是管理员是否已经禁止了站点之间转发光信号或控制指令，若管理员禁止两个站点之间转发光信号或控制指令，则认为站点之间没有开通，若管理员允许两个站点之间转发光信号或控制指令，则可以认为站点之间已经开通。通过站间路径开通信息可以判断出OTN路由系统中哪些站点之间是可以进行光信号转发。另外，本发明实施例中路径（Trail）是由管理员配置的，路径在OTN路由系统中是真正承载光信号的管道，路径包括源端、宿端和路由段，仍以图3为例，在OTN路由系统中存在一条路径：源端为站点A，宿端为站点H，路由段为AE、ED、DI、IH。In the embodiment of the present invention, first obtain the bandwidth resource distribution information of multiple sites in the OTN routing system and the inter-site path opening information of adjacent sites, wherein the bandwidth resource distribution information can be obtained by collecting the bandwidth resources of the OTN routing system, specifically The bandwidth resource distribution information of each site can be collected periodically. The bandwidth resource distribution information of a site refers to the current bandwidth resource allocation of the site in the OTN routing system. By obtaining the bandwidth resource distribution information of each site, you can obtain The current total bandwidth resources, occupied bandwidth resources, and idle bandwidth resources of each site in the OTN routing system can determine how many optical signals each site in the OTN routing system can carry and what level of optical signal it can carry. In addition, the inter-site path opening information refers to whether adjacent sites have been opened. Wherein, whether the sites have been opened may refer to whether the administrator has configured the optical wavelength channel between the sites. If the optical wavelength channel has been configured, it can be considered that the site has been opened. If the optical wavelength channel is not configured between the sites, it can be considered that the site has not been opened. In addition, whether the site has been opened can also refer to whether the administrator has The forwarding of light signals or control commands between sites is prohibited. If the administrator prohibits the forwarding of light signals or control commands between two sites, it is considered that there is no connection between the sites. If the administrator allows the forwarding of light signals or control commands between two sites command, it can be considered that the stations have been opened. It can be judged which stations in the OTN routing system can perform optical signal forwarding according to the opening information of the inter-station path. In addition, in the embodiment of the present invention, the trail (Trail) is configured by the administrator. The trail is a pipe that actually carries optical signals in the OTN routing system. The trail includes the source end, the sink end, and the routing section. Still taking Figure 3 as an example, There is a path in the OTN routing system: the source end is site A, the sink end is site H, and the routing segments are AE, ED, DI, and IH.
102、根据上述带宽资源分布信息和上述相邻站点的站间路径开通信息生成第一服务层路径。102. Generate a first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent stations.
其中，第一服务层路径包括上述多个站点中任意两个站点之间的多个光信号级别分别对应的路由段，每个路由段对应有源端、宿端以及源宿端交叉信息。Wherein, the first service layer path includes multiple routing segments corresponding to multiple optical signal levels between any two of the multiple sites, and each routing segment corresponds to an active end, a sink end, and source-sink end cross information.
在本发明实施例中，获取到带宽资源分布信息和相邻站点的站间路径开通信息之后，根据带宽资源分布信息和相邻站点的站间路径开通信息生成第一服务层路径，服务层路径包括源端、宿端和路由段，仍以图3为例，在OTN路由系统中源端为站点E、宿端为站点D，根据带宽资源分布信息和相邻站点的站间路径开通信息生成一个服务层路径ED，服务层路径ED包括：OTN路由系统中站点E、站点D之间的多个光信号级别分别对应的路由段。In the embodiment of the present invention, after obtaining the bandwidth resource distribution information and the inter-site path opening information of adjacent sites, the first service layer path is generated according to the bandwidth resource distribution information and the inter-site path opening information of adjacent sites, and the service layer path Including the source end, sink end, and routing segment. Still taking Figure 3 as an example, in the OTN routing system, the source end is site E, and the sink end is site D. It is generated based on bandwidth resource distribution information and inter-site path opening information of adjacent sites. A service layer path ED, the service layer path ED includes: routing sections corresponding to multiple optical signal levels between sites E and D in the OTN routing system.
需要说明的是，在本发明实施例中，生成的服务层路径是根据选取OTN路由系统中包括的任意两个站点生成的，定义为“第一服务层路径”，为了区别后续实施例中根据OTN路由系统中其它站点生成的服务层路径，可以其它服务层路径定义为“第二服务层路径”、“第三服务层路径”、“第四服务层路径”等。另外，当路由段中涉及多个级别的光信号复用之间的关系时，将高阶的光信号组成的路径称为服务层路径（Server Trail），将低阶的光信号组成的路径称为客户层路径（Client Trail）。例如，客户端信号经过ODU复用后，分别产生ODUk信号，其中k=0～4，也就是说，OTN路由系统中可以有5级的信号颗粒，最小为ODU0对应1G，最大为ODU4对应100G，高低阶是相对的概念，当存在两级或以上的复用关系时，小颗粒光信号就是低阶的光信号，大颗粒光信号就是高阶的光信号。It should be noted that, in the embodiment of the present invention, the generated service layer path is generated based on selecting any two stations included in the OTN routing system, and is defined as "the first service layer path". The service layer trails generated by other stations in the OTN routing system can be defined as "second service layer trails", "third service layer trails", "fourth service layer trails" and so on. In addition, when the relationship between multiple levels of optical signal multiplexing is involved in the routing section, the path composed of high-order optical signals is called a server trail (Server Trail), and the path composed of low-order optical signals is called a server trail. It is the client trail (Client Trail). For example, after the client signal is multiplexed by ODU, ODUk signals are generated respectively, where k=0~4, that is to say, there can be 5 levels of signal granularity in the OTN routing system, the minimum is ODU0 corresponding to 1G, and the maximum is ODU4 corresponding to 100G , high and low order are relative concepts. When there are two or more levels of multiplexing, the small-grain optical signal is the low-order optical signal, and the large-grain optical signal is the high-order optical signal.
需要说明的是，在本发明实施例中，第一服务层路径包括多个路由段，每个路由段对应有源端、宿端以及源宿端交叉信息，其中源宿端交叉信息指的是一个路由段的源端和宿端是否配置有交叉连接，源端和宿端对应的站点是否配置有交叉连接通常由管理员来决定，本发明实施例中若站点已经配置有交叉连接，则要利用这个交叉连接来传送光信号，从而避免站点已经配置的交叉连接被闲置导致的带宽资源利用率较低的问题。It should be noted that, in the embodiment of the present invention, the first service layer path includes multiple routing segments, and each routing segment corresponds to a source end, a sink end, and source-sink end cross information, where the source-sink end cross information refers to Whether the source end and the sink end of a routing segment are configured with cross-connection, whether the site corresponding to the source end and the sink end is configured with cross-connection is usually determined by the administrator. In the embodiment of the present invention, if the site has been configured with cross-connection, then The cross-connect is used to transmit optical signals, thereby avoiding the problem of low bandwidth resource utilization caused by idle cross-connects already configured at the site.
在本发明的一些实施例中，步骤102根据带宽资源分布信息和相邻站点的站间路径开通信息生成第一服务层路径之后，OTN的管理方法还可以包括如下步骤：In some embodiments of the present invention, after step 102 generates the first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of adjacent stations, the OTN management method may further include the following steps:
若第一服务层路径包括的站点上已经配置了业务交叉，将与业务交叉相应的光信号级别对应的路由段的状态更新为占用。If a service crossover has been configured on the site included in the first service layer path, update the state of the routing segment corresponding to the optical signal level corresponding to the service crossover to occupied.
其中，通过源宿端交叉信息可以判断第一服务层路径包括的站点上是否已经配置了业务交叉，当第一服务层路径包括的站点上已经配置了业务交叉时，将与业务交叉相应的光信号级别对应的路由段的状态更新为占用，通过对与业务交叉相应的光信号级别对应的路由段的状态更新，可以方便于管理员浏览网络带宽资源中已用资源和空闲资源数量以及其占用比例，使管理员能够及时发现网络带宽资源的不足或者分布不合理的缺陷。Wherein, it can be judged whether service crossover has been configured on the site included in the first service layer path through the source-sink end crossover information. When the service crossover has been configured on the site included in the first service layer path, the optical The status of the routing section corresponding to the signal level is updated to occupied. By updating the status of the routing section corresponding to the optical signal level corresponding to the service crossover, it is convenient for the administrator to browse the number of used resources and idle resources in the network bandwidth resources and their occupancy. Ratio, so that administrators can timely discover defects of insufficient network bandwidth resources or unreasonable distribution.
另外，在本发明的一些实施例中，若对第一服务层路径中包括的路由段进行过状态更新，则本发明实施例中OTN的管理方法中还可以包括如下步骤：若第一服务层路径中的所有路由段的状态为空闲或占用的其中一种状态，根据带宽资源分布信息和相邻站点的站间路径开通信息生成第四服务层路径，其中，第四服务层路径包括的两个站点至少有一个站点和第一服务层路径包括的两个站点不相同。其中，第一服务层路径中的所有路由段的状态为空闲或占用的其中一种状态，也就是说，当第一服务层路径中的所有路由段的状态已经确定时，无论路由段的状态为空闲或者占用时，都可以表示该路由段的状态已经确定，此时需要重新生成服务层路径，重新生成的服务层路径定义为“第四服务层路径”，该第四服务层路径和第一服务层路径包括的站点至少有一个是不相同的。In addition, in some embodiments of the present invention, if the routing segment included in the path of the first service layer has been updated, the OTN management method in the embodiment of the present invention may further include the following steps: if the first service layer The state of all routing segments in the path is idle or occupied, and the fourth service layer path is generated according to the bandwidth resource distribution information and the inter-site path opening information of adjacent sites, wherein the fourth service layer path includes two At least one of the sites is different from the two sites included in the first service layer trail. Wherein, the state of all routing segments in the first service layer path is one of the states of idle or occupied, that is to say, when the states of all routing segments in the first service layer path have been determined, regardless of the state of the routing segment When it is idle or occupied, it can indicate that the state of the routing segment has been determined. At this time, it is necessary to regenerate the service layer path. The regenerated service layer path is defined as "the fourth service layer path". The fourth service layer path and the first At least one of the sites included in a service layer path is different.
103、根据第一服务层路径中的第一路由段的源宿端交叉信息判断第一路由段的源宿端交叉是否一致。103. Determine whether the source-sink crossover of the first routing segment is consistent according to the source-sink crossover information of the first routing segment in the first service layer path.
在本发明实施例中，生成第一服务层路径之后，为了能够利用站点已经配置的高阶交叉连接，首先需要判断第一服务层路径中包括的所有路由段的源宿端交叉是否一致，从而找出源宿端交叉不一致的路由段，步骤103中描述的是对第一服务层路径中的第一路由段判断源宿端交叉是否一致，第一服务层路径中的其它路由段以及其它服务层路径中的路由段判断其源宿端交叉是否一致可以参见此处对第一路由段的源宿端交叉是否一致的描述说明。In the embodiment of the present invention, after the first service layer path is generated, in order to utilize the high-order cross-connection already configured at the site, it is first necessary to determine whether the source-sink cross-connections of all routing segments included in the first service layer path are consistent, so that To find out the routing segment with inconsistent source-sink crossing, step 103 describes whether the source-sink crossing is consistent for the first routing segment in the first service layer path, other routing segments in the first service layer path and other service For the routing segment in the layer path to determine whether the source-sink crossover is consistent, refer to the description of whether the source-sink crossover of the first routing segment is consistent here.
第一服务层路径中包括有多个路由段，并且针对需要传送光信号级别的不同，分别对应有多个路由段，第一服务层路径中的每个路由段对应有一个源宿端交叉信息，通过路由段对应的源宿端交叉信息可以判断出该路由段的源宿端交叉是否一致，其中，路由段的源宿端交叉是否一致指的是该路由段的源端和宿端的交叉连接情况是否保持一致，路由段的源宿端交叉一致具体可以指的是该路由段的源端和宿端均无交叉，路由段的源宿端交叉一致还可以指的是该路由段的源端和宿端均有交叉，除了路由段的源宿端交叉一致以外的情况就属于路由段的源宿端交叉不一致。仍以图3所示的OTN路由系统中路由段ED为例，路由段ED对应的源端为站点E，路由段ED对应的宿端为站点D，路由段ED对应的源宿端交叉信息为在站点E配置有交叉连接ODU2、在站点D配置有交叉连接ODU1，则路由段ED的源宿端交叉不一致，因为源端为交叉连接ODU2，宿端为交叉连接ODU1，故路由段ED的源宿端交叉是不一致。步骤103中以对第一路由段的源宿端交叉是否一致进行描述，当第一路由段的源宿端交叉不一致时，执行如下步骤104。The first service layer path includes multiple routing segments, and there are multiple routing segments corresponding to the different levels of optical signals that need to be transmitted. Each routing segment in the first service layer path corresponds to a source-sink end cross information , it can be judged whether the source-sink cross-connection of the routing segment is consistent through the source-sink cross-connection information corresponding to the routing segment, wherein, whether the source-sink cross-connection of the routing segment is consistent refers to the cross-connection between the source end and the sink end of the routing segment Whether the situation is consistent, the source and sink crossover consistency of the routing segment can specifically refer to the fact that there is no crossover between the source end and the sink end of the routing segment, and the source and sink end crossover consistency of the routing segment can also refer to the source end of the routing segment There is crossover between the source and sink ends of the routing segment, except that the source and sink end crossover of the routing segment is consistent, which belongs to the source and sink end of the routing segment. Still taking the routing segment ED in the OTN routing system shown in Figure 3 as an example, the source end corresponding to the routing segment ED is site E, the sink end corresponding to the routing segment ED is site D, and the source-sink end cross information corresponding to the routing segment ED is If cross-connect ODU2 is configured at site E and cross-connect ODU1 is configured at site D, the source and sink ends of routing section ED are cross-connected inconsistently. Because the source end is cross-connect ODU2 and the sink end is cross-connect ODU1, the source Sink crossing is inconsistent. In step 103, it is described whether the source-sink crossover of the first routing segment is consistent. When the source-sink crossover of the first routing segment is inconsistent, the following step 104 is performed.
104、若第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段。104. If the source-sink crossover of the first routing segment is inconsistent, acquire a second routing segment in the second service layer path corresponding to the source-sink crossover with the inconsistent crossover.
其中，第二服务层路径包括上述多个站点中除第一服务层路径包括的两个站点以外的其它两个站点之间的多个光信号级别对应的路由段。Wherein, the second service layer path includes routing segments corresponding to multiple optical signal levels between the other two stations among the plurality of stations except the two stations included in the first service layer path.
在本发明实施例中，当第一路由段的源宿端交叉不一致时，对于该源宿端交叉，获取该源宿端交叉的另一侧服务层路径，将与交叉不一致的源宿端交叉对应的另一侧服务层路径定义为“第二服务层路径”，获取到源宿端交叉对应的第二服务层路径中对应的路由段，将该路由段定义为“第二路由段”，当第一路由段的源宿端交叉不一致时，第一路由段的源宿端交叉分别有两个不同的服务层路径，一个是第一路由段所属的第一服务层路径，另一个为第二路由段所属的第二服务层路径，其中，第二服务层路径包括上述多个站点中除第一服务层路径包括的两个站点以外的其它两个站点之间的多个光信号级别对应的路由段。In the embodiment of the present invention, when the source-sink crossover of the first routing segment is inconsistent, for the source-sink crossover, the service layer path on the other side of the source-sink crossover is obtained, and the source-sink crossover that is inconsistent with the crossover The corresponding service layer path on the other side is defined as the "second service layer path", and the corresponding routing segment in the second service layer path corresponding to the source-sink crossover is obtained, and the routing segment is defined as the "second routing segment", When the source-sink crossover of the first routing segment is inconsistent, the source-sink crossover of the first routing segment has two different service layer trails, one is the first service layer trail to which the first routing segment belongs, and the other is the first service layer trail to which the first routing segment belongs. The second service layer path to which the second routing segment belongs, wherein the second service layer path includes a plurality of optical signal level correspondences between the above-mentioned multiple stations except the two stations included in the first service layer path routing segment.
需要说明的是，在本发明的一些实施例中，OTN的管理方法还可以包括如下步骤：若第一路由段的源宿端交叉不一致，将交叉不一致的源宿端交叉对应的第一服务层路径中的第一路由段的状态更新为占用。其中第一路由段的状态指的是该第一路由段的占用状态，第一路由段的状态包括两种状态：空闲或占用，本发明实施例中当第一路由段的源宿端交叉不一致时，将第一路由段的状态更新为占用，以表示第一路由段将用于组成虚拟路由段，不再是空闲状态，不能够再被占用。通过对第一路由段的状态更新，可以明确第一服务层路径中第一路由段能否被用于路由合并，可以方便于管理员浏览网络带宽资源中已用资源和空闲资源数量以及其占用比例，使管理员能够及时发现网络带宽资源的不足或者分布不合理的缺陷。It should be noted that, in some embodiments of the present invention, the OTN management method may further include the following steps: if the crossover of the source and sink ends of the first routing segment is inconsistent, crossing the source and sink ends with inconsistent crossovers to the corresponding first service layer The status of the first routing segment in the path is updated to occupied. The status of the first routing segment refers to the occupation status of the first routing segment, and the status of the first routing segment includes two states: idle or occupied. , update the state of the first routing segment to occupied, to indicate that the first routing segment will be used to form a virtual routing segment, and is no longer in an idle state, and can no longer be occupied. By updating the status of the first routing segment, it can be clarified whether the first routing segment in the first service layer path can be used for route merging, and it is convenient for administrators to browse the number of used resources and idle resources in network bandwidth resources and their occupancy Ratio, so that administrators can timely discover defects of insufficient network bandwidth resources or unreasonable distribution.
需要说明的是，在本发明的另一些实施例中，步骤104获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段之后，OTN的管理方法还可以包括如下步骤：还包括：It should be noted that, in some other embodiments of the present invention, after step 104 acquires the second routing segment in the second service layer path corresponding to the source-sink end cross-connection inconsistent with the cross-connection, the OTN management method may further include the following steps :Also includes:
若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端为接入光信号的支路端口，将第二服务层路径中的第二路由段的状态更新为占用或空闲；If the source end of the second routing section in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover is the tributary port for accessing the optical signal, update the status of the second routing section in the second service layer path is occupied or vacant;
若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端不是接入光信号的支路端口，将第二服务层路径中的第二路由段的状态更新为占用。If the source end of the second routing section in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover is not the tributary port for accessing the optical signal, update the status of the second routing section in the second service layer path for occupation.
其中，若第二路由段的源端不是接入光信号的支路端口，即第二路由段是用于光信号复用的普通站点，则可以第二路由段的状态更新为占用，以表示第二路由段将用于组成虚拟路由段，不再是空闲状态，不能够再被占用。但是对于第二路由段是接入光信号的支路端口的情况，这种情况一般用于维护异常导致的离散交叉，第二路由段的状态可以更新为占用或空闲，具体可以根据具体的应用场景来设定。通过对第二路由段的状态更新，可以明确第二服务层路径中第二路由段能否被用于路由合并，可以方便于管理员浏览网络带宽资源中已用资源和空闲资源数量以及其占用比例，使管理员能够及时发现网络带宽资源的不足或者分布不合理的缺陷。Wherein, if the source end of the second routing segment is not a tributary port for accessing optical signals, that is, the second routing segment is a common site for optical signal multiplexing, the status of the second routing segment can be updated as occupied to indicate The second routing segment will be used to form a virtual routing segment, which is no longer idle and can no longer be occupied. However, for the case where the second routing section is a tributary port for accessing optical signals, this situation is generally used for discrete crossovers caused by abnormal maintenance, and the status of the second routing section can be updated as occupied or idle, depending on the specific application scene to set. By updating the status of the second routing segment, it can be clarified whether the second routing segment in the second service layer path can be used for route merging, which can facilitate administrators to browse the number of used resources and idle resources in network bandwidth resources and their occupancy Ratio, so that administrators can timely discover defects of insufficient network bandwidth resources or unreasonable distribution.
105、对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径。105. Merge the first routing segment in the first service layer path and the second routing segment in the second service layer path to generate a third service layer path.
其中，第三服务层路径包括虚拟路由段，虚拟路由段的源端为第一路由段的源端且虚拟路由段的宿端为第二路由段的宿端，或，虚拟路由段的源端为第二路由段的源端且虚拟路由段的宿端为第一路由段的宿端。Wherein, the third service layer path includes a virtual routing segment, the source end of the virtual routing segment is the source end of the first routing segment and the sink end of the virtual routing segment is the sink end of the second routing segment, or, the source end of the virtual routing segment is the source end of the second routing segment and the sink end of the virtual routing segment is the sink end of the first routing segment.
在本发明实施例中，获取到与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段之后，对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径，在第三服务层路径中包括虚拟路由段，该虚拟路段就是对第一路由段和第二路由段进行路由合并之后得到的路由段，由于第一路由段和第二路由段都是相邻站点之间连接的路由段，为了区分原有的路由段，将路由合并后的“路由段”成为虚拟路由段，则虚拟路由段的源端和宿端分别为：虚拟路由段的源端为第一路由段的源端且虚拟路由段的宿端为第二路由段的宿端，或，虚拟路由段的源端为第二路由段的源端且虚拟路由段的宿端为第一路由段的宿端。In the embodiment of the present invention, after obtaining the second routing segment in the second service layer trail corresponding to the source-sink cross that is inconsistent with the cross, the first routing segment in the first service layer trail and the second service layer trail Merge the second routing segment in the path to generate the third service layer path. The third service layer path includes a virtual routing segment, which is the routing segment obtained after routing the first routing segment and the second routing segment. , since the first routing segment and the second routing segment are routing segments connected between adjacent sites, in order to distinguish the original routing segment, the "routing segment" after the route is merged into a virtual routing segment, then the virtual routing segment The source end and the sink end are respectively: the source end of the virtual routing segment is the source end of the first routing segment and the sink end of the virtual routing segment is the sink end of the second routing segment, or the source end of the virtual routing segment is the second routing segment The source end of the segment and the sink end of the virtual routing segment are the sink end of the first routing segment.
需要说明的是，本发明实施例中，路由段指光波长通道的一个子通道时隙，也就是对应于一个端到端的ODUk光信号，而虚拟路由段指的是两个路由段（或更多的路由段）连续的光波长通道内的两个相同颗粒的子通道，通过交叉调度连接起来，形成一个新的路由段，其长度相当于两段光波长通道形成的新通道。It should be noted that, in the embodiment of the present invention, a routing section refers to a sub-channel time slot of an optical wavelength channel, that is, corresponds to an end-to-end ODUk optical signal, and a virtual routing section refers to two routing sections (or more Two sub-channels of the same particle in a continuous optical wavelength channel are connected through cross-scheduling to form a new routing segment whose length is equivalent to the new channel formed by two optical wavelength channels.
举例说明如下，请参阅如图4所示，为本发明实施例中提供的生成第三服务层路径的实现方式示意图，在图4中，站点D配置有一个ODU1交叉连接，服务层路径ED包括站点E和站点D之间的多个光信号级别分别对应的路由段，其中路由段ED的源宿端交叉不一致，交叉不一致的源宿端交叉对应的另一个服务层路径为服务层路径DI，服务层路径DI包括站点D和站点I之间的多个光信号级别分别对应的路由段，将路由段ED和路由段DI进行路由合并，生成第三服务层路径，第三服务层路径包括虚拟路由段EI。当需要发放一条ODU0的光信号时，光信号从站点A出发，经过站点E、站点D、站点I，最后到达站点H。在站点D，已经存在一个高阶信号ODU1交叉，故可以形成了从站点E到站点I的虚拟路由段EI，本发明实施例中可以利用站点D已经建立的ODU1交叉连接，而不需要在站点D建立新的ODU0交叉，通过利用虚拟路由段EI，可以将光信号从站点E直接传输出给站点I，从而达到高效利用路由段ED、路由段DI两个跨段的带宽资源的目的。An example is as follows. Please refer to FIG. 4, which is a schematic diagram of the implementation of generating the third service layer path provided in the embodiment of the present invention. In FIG. 4, site D is configured with an ODU1 cross-connection, and the service layer path ED includes The routing sections corresponding to the multiple optical signal levels between site E and site D, in which the source and sink crossovers of the routing section ED are inconsistent, and the other service layer path corresponding to the source and sink end crossovers with inconsistent crossings is the service layer path DI, The service layer path DI includes multiple routing sections corresponding to the optical signal levels between site D and site I. The routing section ED and routing section DI are routed and merged to generate a third service layer path. The third service layer path includes virtual Routing segment EI. When an optical signal of ODU0 needs to be issued, the optical signal starts from station A, passes through station E, station D, station I, and finally arrives at station H. At site D, there is already a high-order signal ODU1 crossover, so a virtual routing segment EI from site E to site I can be formed. In the embodiment of the present invention, the ODU1 cross-connection that has been established at site D can be used without requiring D establishes a new ODU0 cross-connection. By using the virtual routing segment EI, the optical signal can be directly transmitted from site E to site I, so as to achieve the purpose of efficiently utilizing the bandwidth resources of routing segment ED and routing segment DI.
本发明实施例中通过对第一路由段和第二路由段的合并，采用虚拟路由段可以解决高阶穿通交叉难于复用的问题，可以提升业务发放效率和带宽使用效率，另外，本发明实施例中为了能够实现对带宽资源的监控管理，还可以对带宽资源的分布进行可视化监控，举例说明如下，请参阅如图5-a所示，为本发明实施例提供的初始状态下网络带宽资源分布示意图，其中，光波长通道OChAE的源端为站点A、宿端为E，OChAE包括有8个ODU0路由段，光波长通道OChED的源端为站点E、宿端为D，OChED包括有8个ODU0路由段，光波长通道OChDI的源端为站点D、宿端为I，OChDI包括有8个ODU0路由段，光波长通道OChIH的源端为站点I、宿端为H，OChIH包括有8个ODU0路由段。请参阅如图5-b所示，为本发明实施例提供的站点D存在ODU1交叉后的网络带宽资源分布示意图，其中，在站点D上配置有ODU1交叉，由于ODU1的颗粒大小为两个ODU0，故可以将OChED上的ODU1颗粒的路由段和OChDI上的ODU1颗粒的路由段进行路由合并，得到一个虚拟路由段，该虚拟路由段为2个ODU0的路由段，则进行路由合并后，原来的OChED上还存在有6个ODU0的路由段，原来的OChDI上海存在有6个ODU0的路由段。通过如图5-b所示，可以为逻辑上的网络带宽资源的分布情况提供了可视化，使得网络管理员能及时发现网络带宽资源不足或者分布不合理的缺陷，由于OTN的业务颗粒非常大，单个通道的费用很高，所以在OTN的管理中对路由段进行可视化，可以把逻辑上的所有网络带宽资源都能够以图形形式呈现在可以向用户显示的界面上，通过图形能够形象的表示出OTN路由系统中各个站点的带宽资源分布，可以为制定路由策略提供便利条件，便于光信号的传送。In the embodiment of the present invention, by merging the first routing segment and the second routing segment, the use of virtual routing segments can solve the problem of difficult multiplexing of high-order pass-through crossovers, and can improve service provisioning efficiency and bandwidth utilization efficiency. In addition, the implementation of the present invention In the example, in order to realize the monitoring and management of the bandwidth resources, the distribution of the bandwidth resources can also be visually monitored. The example is as follows, please refer to the network bandwidth resources in the initial state provided by the embodiment of the present invention as shown in FIG. 5-a Distribution diagram, in which, the source end of the optical wavelength channel OChAE is site A, and the sink end is E. OChAE includes 8 ODU0 routing segments. The source end of the optical wavelength channel OChED is site E, and the sink end is D. OChED includes 8 ODU0 routing segment, the source end of the optical wavelength channel OChDI is site D, the sink end is I, OChDI includes 8 ODU0 routing segments, the source end of the optical wavelength channel OChIH is site I, the sink end is H, and OChIH includes 8 ODU0 routing segment. Please refer to Figure 5-b, which is a schematic diagram of the distribution of network bandwidth resources after the presence of ODU1 cross-connects at site D provided for the embodiment of the present invention, where ODU1 cross-connects are configured on site D, since the particle size of ODU1 is two ODU0 , so the routing segment of the ODU1 granule on OChED and the routing segment of the ODU1 granule on OChDI can be combined to obtain a virtual routing segment, which is two routing segments of ODU0. After the routing is merged, the original There are still 6 routing segments of ODU0 on the current OChED, and there are 6 routing segments of ODU0 in the original OChDI Shanghai. As shown in Figure 5-b, it can provide visualization for the distribution of logical network bandwidth resources, so that network administrators can timely discover the defects of insufficient network bandwidth resources or unreasonable distribution. Since the OTN service granularity is very large, The cost of a single channel is very high, so the visualization of routing segments in OTN management can present all logical network bandwidth resources in graphical form on an interface that can be displayed to users, and can be visualized through graphics The bandwidth resource distribution of each site in the OTN routing system can provide convenient conditions for formulating routing strategies and facilitate the transmission of optical signals.
需要说明的是，本发明实施例中步骤103中对第一路由段的源宿端交叉是否一致的判断，若第一路由段的源宿端交叉不一致时执行了步骤104和步骤105，若第一路由段的源宿端交叉一致时，OTN的管理方法还可以包括如下步骤：It should be noted that, in step 103 of the embodiment of the present invention, the judgment of whether the source-sink crossover of the first routing segment is consistent, if the source-sink crossover of the first routing segment is inconsistent, step 104 and step 105 are executed. When the source and sink ends of a routing segment are cross-consistent, the OTN management method may further include the following steps:
若源宿端交叉一致具体为第一路由段的源端和宿端均无交叉，更新第一路由段的状态为空闲；If the source-sink crossover is consistent, specifically, neither the source end nor the sink end of the first routing segment is cross-connected, update the state of the first routing segment to be idle;
若源宿端交叉一致具体为第一路由段的源端和宿端均有交叉，更新第一路由段的状态为占用。If the source-sink crossover is consistent, specifically, both the source end and the sink end of the first routing segment have crossover, update the state of the first routing segment to occupied.
其中，第一路由段的源端和宿端均无交叉属于源宿端交叉一致的情况，可以将第一路由段的状态更新为空闲，则表示该第一路由段仍为空闲状态，可以用于传送光信号，第一路由段的源端和宿端均有交叉属于源宿端交叉一致的情况，可以将第一路由段的状态更新为占用，通过对第一路由段的状态更新，可以明确第一服务层路径中第一路由段能否被用于路由合并，可以方便于管理员浏览网络带宽资源中已用资源和空闲资源数量以及其占用比例，使管理员能够及时发现网络带宽资源的不足或者分布不合理的缺陷。Wherein, the source end and the sink end of the first routing segment have no crossover, which means that the source and sink end crossovers are consistent, and the status of the first routing segment can be updated to idle, which means that the first routing segment is still in the idle state, and can be used For the transmission of optical signals, both the source end and the sink end of the first routing section have crossovers, which belong to the case where the source and sink end crossovers are consistent, and the status of the first routing section can be updated to occupied. By updating the status of the first routing section, it can be Clarify whether the first route segment in the first service layer path can be used for route merging, which can facilitate administrators to browse the number of used resources and idle resources in network bandwidth resources and their occupation ratio, so that administrators can find network bandwidth resources in time Insufficient or unreasonable distribution defects.
需要说明的是，在本发明实施例中步骤103中对第一路由段的源宿端交叉是否一致进行了判断，并当第一路由段的源宿端交叉一致时执行了步骤104和步骤105，也就是说步骤103至步骤105描述的是对第一路由段的处理过程，本发明实施例中在步骤103之后，还可以包括如下步骤：It should be noted that, in the embodiment of the present invention, in step 103, it is judged whether the source-sink crossover of the first routing segment is consistent, and when the source-sink crossover of the first routing segment is consistent, step 104 and step 105 are executed That is to say, steps 103 to 105 describe the processing of the first routing segment. In the embodiment of the present invention, after step 103, the following steps may also be included:
判断第一服务层路径中除第一路由段以外的其它路由段的源宿端交叉是否一致，并按照对第一路由段的源宿端交叉是否一致所分别进行的处理方式对第一服务层路径中除第一路由段以外的其它路由段进行处理，直到将第一服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。Determine whether the source-sink crossovers of other routing segments other than the first routing segment in the path of the first service layer are consistent, and process the first service layer Other routing segments in the path except the first routing segment are processed until it is judged whether the source-destination end crossings of all routing segments in the first service layer path are consistent.
也就是说，本发明实施例可以是一个循环的过程，当生成第一服务层路径之后，可以对第一服务层路径中包括的第一路由段进行源宿端交叉是否一致的判断，然后对第一服务层路径中包括的其它路由段采用同样的方式进行源宿端交叉是否一致的判断，即对于步骤103至105可以多次循环执行，以实现对第一服务层路径中所有路由段进行源宿端交叉是否一致的判断。That is to say, this embodiment of the present invention can be a cyclic process. After the first service layer path is generated, it can be judged whether the source-destination crossover is consistent with the first routing segment included in the first service layer path, and then the Other routing segments included in the first service layer path use the same method to judge whether the source-sink end crossover is consistent, that is, steps 103 to 105 can be executed repeatedly, so as to realize all routing segments in the first service layer path Judgment on whether the source-sink crossover is consistent.
需要说明的是，在本发明实施例中步骤105生成第三服务层路径之后，本发明实施例中还可以包括如下步骤：It should be noted that, after step 105 in the embodiment of the present invention generates the third service layer path, the embodiment of the present invention may further include the following steps:
判断第三服务层路径中的虚拟路由段的源宿端交叉是否一致，并按照对第一路由段的源宿端交叉是否一致所分别进行的处理方式对虚拟路由段进行处理，直到将第三服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。Judging whether the source-sink crossover of the virtual routing segment in the third service layer path is consistent, and processing the virtual routing segment according to whether the source-sink crossing of the first routing segment is consistent, until the third Whether the source-sink crossover of all routing segments in the service layer path is consistent is judged.
也就是说，本发明实施例可以是一个循环的过程，当生成第三服务层路径之后，可以对第三服务层路径中包括的虚拟路由段进行源宿端交叉是否一致的判断，即对于步骤103至105可以多次循环执行，以实现对第三服务层路径中所有路由段进行源宿端交叉是否一致的判断。That is to say, the embodiment of the present invention can be a cyclic process. After the third service layer path is generated, it can be judged whether the source-destination crossover is consistent with the virtual routing segment included in the third service layer path, that is, for the step Steps 103 to 105 may be executed in a loop multiple times, so as to judge whether the source-destination crossover is consistent for all routing segments in the third service layer path.
需要说明的是，在本发明的另一些实施例中步骤105生成第三服务层路径之后，本发明实施例中还可以包括如下步骤：It should be noted that, after step 105 generates the third service layer path in other embodiments of the present invention, the embodiments of the present invention may further include the following steps:
接收用户发送的光信号；Receive the optical signal sent by the user;
根据光信号的信号级别从OTN路由系统中选择相应的虚拟路由段；Select the corresponding virtual routing segment from the OTN routing system according to the signal level of the optical signal;
对选择出的虚拟路由段对应的站点进行交叉配置；Perform cross configuration on the site corresponding to the selected virtual routing segment;
使用交叉配置后的站点对光信号进行传送。The optical signal is transmitted by using the cross-configured site.
其中，对OTN路由系统中在路由段的源宿端交叉一致的情况下对所有服务层路径的路由段进行合并生成虚拟路由段之后，按照本发明实施例中OTN路由系统中路由段的分布情况可以对用户发送的光信号进行传送，根据光信号的信号级别从OTN路由系统中选择相应的虚拟路由段，对选择出的虚拟路由段对应的站点进行交叉配置，然后使用交叉配置后的站点对光信号进行传送。Wherein, in the OTN routing system, after the routing segments of all service layer paths are merged to generate virtual routing segments under the condition that the source and sink ends of the routing segments are cross-consistent, according to the distribution of the routing segments in the OTN routing system in the embodiment of the present invention It can transmit the optical signal sent by the user, select the corresponding virtual routing segment from the OTN routing system according to the signal level of the optical signal, perform cross-connection configuration on the site corresponding to the selected virtual routing segment, and then use the cross-configured site to pair Optical signals are transmitted.
举例说明如下，请参阅如图6所示，为本发明实施例提供的OTN的管理装置的功能架构示意图，其中，OTN的管理装置主要位于管理平面，按照其功能可以分为“带宽资源采集”、“带宽资源分析”、“路由计算”、“交叉配置”四个功能。另外OTN路由系统中的物理网元由主机软件控制，通过OTN的管理装置与主机软件的通信接口采集网络中的带宽资源，详见前述步骤101的描述，OTN的管理装置再对采集到的带宽资源进行分析，形成对应的路由段和虚拟路由段，详见前述实施例中步骤102至105中对带宽资源的分析，然后OTN的管理装置根据需要传送的光信号进行路由计算，制定合适的路由转发策略，最后OTN的管理装置进行交叉配置，负责将路由计算得到的交叉通过OTN的管理装置与主机软件之间的通信接口下发给物理网元，实现最终的光信号发放。其中，图6中所示的物理网元指具备OTN交叉调度功能的光传输设备，它具备两种与本发明实施例中相关的功能：1）可以安装光波长通道的光口，这些光口能够将光/电信号互转，并进行远距离传输；2）可以抽取光波长通道的光口的电信号在各个光波长通道的光口之间或者客户侧光口之间进行交叉调度。Examples are as follows, please refer to Figure 6, which is a schematic diagram of the functional architecture of the OTN management device provided by the embodiment of the present invention, wherein the OTN management device is mainly located on the management plane, and can be divided into "bandwidth resource collection" according to its function , "Bandwidth Resource Analysis", "Routing Calculation", and "Crossover Configuration" four functions. In addition, the physical network elements in the OTN routing system are controlled by the host software, and the bandwidth resources in the network are collected through the communication interface between the OTN management device and the host software. Resources are analyzed to form corresponding routing segments and virtual routing segments. For details, see the analysis of bandwidth resources in steps 102 to 105 in the foregoing embodiments, and then the OTN management device performs routing calculations according to the optical signals that need to be transmitted, and formulates appropriate routing Forwarding strategy. Finally, the OTN management device performs cross-connection configuration, and is responsible for sending the cross-connection obtained from route calculation to the physical network element through the communication interface between the OTN management device and the host software, so as to realize the final optical signal distribution. Among them, the physical network element shown in Figure 6 refers to the optical transmission equipment with OTN cross-scheduling function, which has two functions related to the embodiment of the present invention: 1) Optical ports that can be installed with optical wavelength channels, these optical ports It can convert optical/electrical signals and carry out long-distance transmission; 2) It can extract the electrical signals of the optical ports of the optical wavelength channels and perform cross-scheduling between the optical ports of each optical wavelength channel or between the client-side optical ports.
通过以上对本发明实施例的描述可知，获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息，根据获取到的带宽资源分布信息和站间路径开通信息生成第一服务层路径，根据第一服务层路径中的第一路由段的源宿端交叉信息判断第一路由段的源宿端交叉是否一致；若第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径，其中，第三服务层路径包括的虚拟路由段为对第一路由段和第二路由段进行合并得到，通过对交叉不一致的源宿端交叉对应的多个服务层路径的路由段的合并，可以实现站点已经配置的高阶信号交叉桥接与低阶通道的合并，将路由段合并得到的虚拟路由段用于光信号的传送时，就可以实现使用高阶信号交叉桥接低阶信号的方式传送光信号，无需重新建立与低阶等级的光信号的业务等级相一致的交叉调度，提高带宽资源利用效率。From the above description of the embodiments of the present invention, it can be seen that the bandwidth resource distribution information of multiple sites in the OTN routing system and the inter-site path opening information of adjacent sites are obtained, and the first step is generated according to the obtained bandwidth resource distribution information and inter-site path opening information. A service layer path, according to the source-sink end cross information of the first routing segment in the first service layer path, it is judged whether the source-sink end crossing of the first routing segment is consistent; if the source-sink end crossing of the first routing segment is inconsistent, obtain and The sources and sinks with inconsistent crossover cross the second routing segment in the corresponding second service layer path, merge the first routing segment in the first service layer path and the second routing segment in the second service layer path, and generate the second routing segment Three service layer paths, wherein, the virtual routing segment included in the third service layer path is obtained by merging the first routing segment and the second routing segment, by crossing the routes of multiple service layer paths corresponding to the source and sink ends with crossing inconsistencies The merging of high-order signal cross-bridges and low-order channels that have been configured at the site can be realized through the combination of high-order signal cross-bridges and low-order channels. Optical signals are transmitted in the form of optical signals, without re-establishing cross-scheduling consistent with the service level of low-order optical signals, improving bandwidth resource utilization efficiency.
为便于更好的理解和实施本发明实施例的上述方案，下面举例相应的应用场景来进行具体说明。In order to facilitate a better understanding and implementation of the above-mentioned solutions of the embodiments of the present invention, the corresponding application scenarios are exemplified below for specific description.
首先收集OTN路由系统中各个站点的带宽资源分布信息以及站间路径开通信息，确认哪些站点之间已经开通站间OCh路径，对每个OCh路径，根据形成OCh路径的设备规格描述的信号映射关系，生成多个光信号级别分别对应的所有路由段，根据已经配置的业务交叉，将业务交叉对应的路由段标记为“占用”状态，并根据光信号的高低阶承载关系，将与标记为“占用”状态的路由段具有高低阶承载的路由段同样标记为“占用”状态。请参阅如图7所示，为本发明实施例中OTN的管理方法的一种应用场景示意图，可以包括如下步骤：Firstly, collect the bandwidth resource distribution information of each site in the OTN routing system and the opening information of inter-site paths, confirm which sites have opened inter-site OCh paths, and for each OCh path, according to the signal mapping relationship described by the equipment specifications that form the OCh path , to generate all routing segments corresponding to multiple optical signal levels, mark the routing segment corresponding to the service cross-connection as "occupied" according to the configured service cross-connection, and mark the routing segment corresponding to the service cross-connection as "Occupied" according to the high-low order bearer relationship of the optical signal Routing segments in the "Occupied" state are also marked as "Occupied" state. Please refer to FIG. 7, which is a schematic diagram of an application scenario of the OTN management method in the embodiment of the present invention, which may include the following steps:
S01、初始化服务层路径容器，将所有的OCh路径置入服务层路径容器中。S01. Initialize the service layer path container, and put all OCh paths into the service layer path container.
其中，设置一个服务层路径容器，将生成的所有服务层路径置入服务层路径容器，则在开始时刻，服务层路径容器中容纳有多个服务层路径。Wherein, a service layer path container is set, and all the generated service layer paths are put into the service layer path container, then at the beginning, the service layer path container contains multiple service layer paths.
S02、先检查服务层路径容器中是否存在服务层路径，如不存在，则整个过程结束，否则从服务层路径容器中选择一个服务层路径，作为当前服务层路径（即前述实施例中的第一服务层路径），然后进入步骤S03。S02. First check whether there is a service layer path in the service layer path container. If it does not exist, the whole process ends. Otherwise, select a service layer path from the service layer path container as the current service layer path (that is, the first in the foregoing embodiment) a service layer path), and then go to step S03.
其中，步骤S02是一个循环的起点，有两种可能导致服务层路径容器中没有服务层路径：1）步骤S01初始化该服务层路径容器时可能不存在任何OCh，导致其一开始就为空；2）经过步骤S03、S04，所有的服务层路径均已处理完毕并移出该服务层路径容器。Among them, step S02 is the starting point of a loop, and there are two possible causes that there is no service layer path in the service layer path container: 1) There may not be any OCh when the service layer path container is initialized in step S01, causing it to be empty at the beginning; 2) After steps S03 and S04, all service layer paths have been processed and removed from the service layer path container.
S03、从服务层路径容器中移除当前服务层路径。S03. Remove the current service layer path from the service layer path container.
S04、检查当前服务层路径中的所有路由段，如所有路由段均已明确占用状态，即所有路由段的状态已经更新为占用或空闲，则回到步骤S02，重新选择一个服务层路径作为当前服务层路径，否则选取一个路由段作为当前路由段（即前述实施例中的第一路由段），进入步骤S05。S04. Check all routing segments in the current service layer path. If all routing segments have been clearly occupied, that is, the status of all routing segments has been updated to occupied or idle, then return to step S02 and reselect a service layer path as the current path. service layer path, otherwise select a routing segment as the current routing segment (that is, the first routing segment in the foregoing embodiment), and go to step S05.
S05、收集当前路由段的源宿端交叉信息。S05. Collect source-sink crossover information of the current routing segment.
S06、判断当前路由段的源宿端交叉是否一致，其中源宿端交叉一致指的是当前路由段的源端和宿端同时存在交叉或者同时不存在交叉，因为路由段是带宽资源的最小单位，具有唯一确定的信号级别，因此两端的交叉级别肯定是相同的。如果源宿交叉一致，则执行步骤S07，否则执行步骤S08。S06. Determine whether the source and sink crossovers of the current routing segment are consistent, where the consistent source and sink crossing means that the source and sink ends of the current routing segment have crossovers or no crossovers at the same time, because the routing segment is the smallest unit of bandwidth resources , has a uniquely determined signal level, so the crossover level at both ends must be the same. If the source and sink crosses are consistent, go to step S07, otherwise go to step S08.
S07、如果源宿交叉一致，更新当前路由段的状态，具体的，若源宿端均无交叉，则更新当前路由段的状态为空闲，若源宿端均有交叉，则更新当前路由段的状态为占用，若当前路由段的处理完毕，跳回步骤S04。S07. If the source-sink crossover is consistent, update the state of the current routing segment. Specifically, if there is no crossover at the source and sink ends, update the state of the current routing segment as idle; if both the source and sink ends have crossover, update the status of the current routing segment The state is occupied, and if the processing of the current routing segment is completed, jump back to step S04.
S08、如果源宿端交叉不一致，则更新当前路由段的占用状态为占用，然后执行步骤S09。S08. If the source-sink crossover is not consistent, update the occupancy status of the current routing segment to occupancy, and then perform step S09.
S09、获取交叉不一致的源宿端交叉对应的另一侧服务层路径（即前述实施例中的第二服务层路径）的路由段，表示为另一服务层路径的路由段（即前述实施例中的第二路由段），则将另一服务层路径的路由段其状态更新为“占用”，并与当前路由段合并生成新的服务层路径（即前述实施例中的第三服务层路径）。新的服务层路径的路由段即为虚拟路由段，则虚拟路由段的源端是当前路由段的源端，虚拟路由段的宿端是另一服务层路径的路由段的宿端。虚拟路由段就是两个路由段的低阶信号，当两个路由段的低阶信号不一致时，按照两个路由段中低阶信号的等级来设定虚拟路由段对应的光信号等级。S09. Obtain the routing segment of the service layer path on the other side (that is, the second service layer path in the foregoing embodiment) corresponding to the source-sink crossover with inconsistent crossings, and represent it as the routing segment of another service layer path (that is, the foregoing embodiment the second routing segment in ), update the status of the routing segment of another service layer path to "occupied", and merge with the current routing segment to generate a new service layer path (that is, the third service layer path in the preceding embodiment ). The routing segment of the new service layer path is a virtual routing segment, and the source end of the virtual routing segment is the source end of the current routing segment, and the sink end of the virtual routing segment is the sink end of the routing segment of another service layer path. The virtual routing section is the low-order signal of the two routing sections. When the low-order signals of the two routing sections are inconsistent, the level of the optical signal corresponding to the virtual routing section is set according to the level of the low-order signal in the two routing sections.
需要说明的是，如果交叉不一致的源宿端交叉对应的另一侧服务层路径的路由段的源端为接入光信号的支路端口，则此种情况一般是维护异常导致的离散交叉，本发明实施例中在处理逻辑上可以将其置为占用或空闲，然后略过步骤S10，直接跳回到步骤S04。It should be noted that if the source end of the routing section of the service layer path on the other side corresponding to the source-sink crossover with inconsistent cross-connection is the tributary port for accessing optical signals, this situation is generally a discrete cross-connection caused by abnormal maintenance. In the embodiment of the present invention, it can be set as occupied or idle in terms of processing logic, and then step S10 is skipped and directly returns to step S04.
S10、将新生成的服务层路径加入服务层路径容器，其对应的路由段为虚拟路由段，当前路由段处理完毕，跳回步骤S04。S10. Add the newly generated service layer path to the service layer path container, and its corresponding routing segment is a virtual routing segment. After processing the current routing segment, skip back to step S04.
通过以上对本发明实施例的举例说明可知，获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息，根据获取到的带宽资源分布信息和站间路径开通信息生成第一服务层路径，根据第一服务层路径中的第一路由段的源宿端交叉信息判断第一路由段的源宿端交叉是否一致；若第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径，其中，第三服务层路径包括的虚拟路由段为对第一路由段和第二路由段进行合并得到，通过对交叉不一致的源宿端交叉对应的多个服务层路径的路由段的合并，可以实现站点已经配置的高阶信号交叉桥接与低阶通道的合并，将路由段合并得到的虚拟路由段用于光信号的传送时，就可以实现使用高阶信号交叉桥接低阶信号的方式传送光信号，无需重新建立与低阶等级的光信号的业务等级相一致的交叉调度，提高带宽资源利用效率。Through the above description of the embodiments of the present invention, it can be seen that the bandwidth resource distribution information of multiple sites in the OTN routing system and the inter-site path opening information of adjacent sites are obtained, and the obtained bandwidth resource distribution information and inter-site path opening information are generated. The first service layer path, according to the source-sink cross information of the first routing segment in the first service layer path, judges whether the source-sink crossing of the first routing segment is consistent; if the source-sink crossing of the first routing segment is inconsistent, obtain The second routing section in the second service layer path corresponding to the source-sink crossover inconsistent with the crossover is merged with the first routing section in the first service layer path and the second routing section in the second service layer path to generate The third service layer path, wherein, the virtual routing segment included in the third service layer path is obtained by merging the first routing segment and the second routing segment, by crossing the corresponding multiple service layer paths for the source and sink ends with inconsistent crossing The merging of routing segments can realize the combination of high-order signal cross-bridges and low-order channels that have been configured at the site. Optical signals are transmitted in the form of high-order signals, without re-establishing cross-scheduling consistent with the service level of low-order optical signals, improving bandwidth resource utilization efficiency.
为便于更好的实施本发明实施例的上述方案，下面还提供用于实施上述方案的相关装置。In order to facilitate better implementation of the above solutions in the embodiments of the present invention, related devices for implementing the above solutions are also provided below.
请参阅图8-a所示，本发明实施例提供的一种OTN的管理装置800，可以包括：信息获取模块801、路径生成模块802、交叉判断模块803、路由段获取模块804、路由段合并模块805，其中，Please refer to FIG. 8-a, an OTN management device 800 provided by an embodiment of the present invention may include: an information acquisition module 801, a path generation module 802, a crossover judgment module 803, a route segment acquisition module 804, and a route segment merge module 805, wherein,
信息获取模块801，用于获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息；An information acquisition module 801, configured to acquire bandwidth resource distribution information of multiple sites in the OTN routing system and inter-site path opening information of adjacent sites;
路径生成模块802，用于根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径，其中，所述第一服务层路径包括所述多个站点中任意两个站点之间的多个光信号级别分别对应的路由段，每个路由段对应有源端、宿端以及源宿端交叉信息；A path generation module 802, configured to generate a first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent sites, where the first service layer path includes any of the multiple sites Routing sections corresponding to multiple optical signal levels between two sites, and each routing section corresponds to the source end, sink end, and source-sink end cross information;
交叉判断模块803，用于根据所述第一服务层路径中的第一路由段的源宿端交叉信息判断所述第一路由段的源宿端交叉是否一致；A crossover judging module 803, configured to judge whether the source-sink crossover of the first routing segment is consistent according to the source-sink crossover information of the first routing segment in the first service layer path;
路由段获取模块804，用于若所述第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，所述第二服务层路径包括所述多个站点中除所述第一服务层路径包括的两个站点以外的其它两个站点之间的多个光信号级别对应的路由段；The routing section acquisition module 804 is configured to acquire a second routing section in the second service layer path corresponding to the source-sink crossover of the first routing section if the source-sink crossover of the first routing section is inconsistent, and the second service The layer path includes routing segments corresponding to multiple optical signal levels between the other two sites among the multiple sites except the two sites included in the first service layer path;
路由段合并模块805，用于对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径，所述第三服务层路径包括虚拟路由段，所述虚拟路由段的源端为所述第一路由段的源端且所述虚拟路由段的宿端为所述第二路由段的宿端，或，所述虚拟路由段的源端为所述第二路由段的源端且所述虚拟路由段的宿端为所述第一路由段的宿端。A routing segment merging module 805, configured to merge the first routing segment in the first service layer path and the second routing segment in the second service layer path to generate a third service layer path, the third The service layer path includes a virtual routing segment, the source end of the virtual routing segment is the source end of the first routing segment and the sink end of the virtual routing segment is the sink end of the second routing segment, or, the The source end of the virtual routing segment is the source end of the second routing segment and the sink end of the virtual routing segment is the sink end of the first routing segment.
请参阅如图8-b所示，在本发明的一些实施例中，相对于如图8-a所示的OTN的管理装置800，OTN的管理装置800，还可以包括：Please refer to FIG. 8-b. In some embodiments of the present invention, relative to the OTN management device 800 shown in FIG. 8-a, the OTN management device 800 may further include:
第一状态更新模块806，用于若所述第一路由段的源宿端交叉不一致，将交叉不一致的源宿端交叉对应的第一服务层路径中的第一路由段的状态更新为占用。The first status updating module 806 is configured to update the status of the first routing segment in the first service layer path corresponding to the source-sink cross of the first routing segment to occupied if the source-sink cross of the first routing segment is inconsistent.
请参阅如图8-c所示，在本发明的一些实施例中，相对于如图8-a所示的OTN的管理装置800，OTN的管理装置800，还可以包括：Please refer to FIG. 8-c, in some embodiments of the present invention, relative to the OTN management device 800 shown in FIG. 8-a, the OTN management device 800 may further include:
第二状态更新模块807，用于若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端为接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用或空闲；若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端不是接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用。The second state update module 807 is configured to update the second service if the source end of the second routing segment in the second service layer path corresponding to the source-sink end cross-connection inconsistent with the cross-connection is a tributary port for accessing optical signals. The status of the second routing segment in the layer path is updated to occupied or idle; if the source end of the second routing segment in the second service layer path corresponding to the source-sink end cross-connection inconsistent with the cross-connection is not a tributary port for accessing optical signals , updating the status of the second routing segment in the second service layer path to occupied.
请参阅如图8-d所示，在本发明的一些实施例中，相对于如图8-a所示的OTN的管理装置800，OTN的管理装置800，还可以包括：Please refer to FIG. 8-d, in some embodiments of the present invention, relative to the OTN management device 800 shown in FIG. 8-a, the OTN management device 800 may further include:
第三状态更新模块808，用于若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均无交叉，更新所述第一路由段的状态为空闲；若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均有交叉，更新所述第一路由段的状态为占用。The third state updating module 808 is configured to update the state of the first routing segment to be idle if the source and sink crossovers are consistent, specifically, neither the source end nor the sink end of the first routing segment has a crossover; if the The source-sink end cross-consistency specifically means that both the source end and the sink end of the first routing segment are cross-connected, and the status of the first routing segment is updated as occupied.
请参阅如图8-e所示，在本发明的一些实施例中，相对于如图8-a所示的OTN的管理装置800，OTN的管理装置800，还可以包括：Please refer to FIG. 8-e, in some embodiments of the present invention, relative to the OTN management device 800 shown in FIG. 8-a, the OTN management device 800 may further include:
第四状态更新模块809，用于若所述第一服务层路径包括的站点上已经配置了业务交叉，将与所述业务交叉相应的光信号级别对应的路由段的状态更新为占用。The fourth status update module 809 is configured to update the status of the routing segment corresponding to the optical signal level corresponding to the service crossover to occupied if the service crossover has been configured on the site included in the first service layer path.
在本发明的一些实施例中，所述路径生成模块802，还用于若所述第一服务层路径中的所有路由段的状态已经为空闲或占用的其中一种状态，根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第四服务层路径，其中，所述第四服务层路径包括的两个站点至少有一个站点和所述第一服务层路径包括的两个站点不相同。In some embodiments of the present invention, the path generation module 802 is further configured to: if the status of all routing segments in the first service layer path is idle or occupied, according to the bandwidth resource The distribution information and the inter-station path opening information of the adjacent stations generate a fourth service layer path, wherein the two stations included in the fourth service layer path have at least one station and the two stations included in the first service layer path different sites.
在本发明的一些实施例中，所述交叉判断模块，还用于判断所述第一服务层路径中除所述第一路由段以外的其它路由段的源宿端交叉是否一致，并按照所述路由段获取模块804和所述路由段合并模块805对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述第一服务层路径中除所述第一路由段以外的其它路由段进行处理，直到将所述第一服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。In some embodiments of the present invention, the intersection judging module is further configured to judge whether the source-destination intersections of other routing segments in the first service layer path except the first routing segment are consistent, and according to the The routing section acquisition module 804 and the routing section merging module 805 respectively process whether the source-destination crossover of the first routing section is consistent. For the first service layer path except the first routing section Other routing segments other than the routing segment are processed until it is determined whether the source-destination end crossings of all routing segments in the first service layer path are consistent.
在本发明的一些实施例中，交叉判断模块803，还用于判断所述第三服务层路径中的虚拟路由段的源宿端交叉是否一致，并按照所述路由段获取模块804和所述路由段合并模块805对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述虚拟路由段进行处理，直到将所述第三服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。In some embodiments of the present invention, the crossover judging module 803 is also used to judge whether the source-sink crossover of the virtual routing segment in the third service layer path is consistent, and according to the routing segment obtaining module 804 and the The routing section merging module 805 processes the virtual routing section in the way of processing whether the source-sink crossover of the first routing section is consistent until the source of all routing sections in the third service layer path is merged. Whether the crossover at the sink end is consistent or not is judged.
请参阅如图8-f所示，在本发明的一些实施例中，相对于如图8-a所示的OTN的管理装置800，OTN的管理装置800，还可以包括：Please refer to FIG. 8-f, in some embodiments of the present invention, relative to the OTN management device 800 shown in FIG. 8-a, the OTN management device 800 may further include:
信号接收模块810，用于接收用户发送的光信号；A signal receiving module 810, configured to receive an optical signal sent by a user;
路由计算模块811，用于根据所述光信号的信号级别从所述OTN路由系统中选择相应的虚拟路由段；A routing calculation module 811, configured to select a corresponding virtual routing segment from the OTN routing system according to the signal level of the optical signal;
交叉配置模块812，用于对选择出的虚拟路由段对应的站点进行交叉配置；A cross configuration module 812, configured to perform cross configuration on the site corresponding to the selected virtual routing segment;
信号传送模块813，用于使用交叉配置后的站点对所述光信号进行传送。The signal transmission module 813 is configured to transmit the optical signal using the cross-configured site.
通过以上实施例对本发明的描述可知，信息获取模块获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息，路径生成模块根据获取到的带宽资源分布信息和站间路径开通信息生成第一服务层路径，交叉判断模块根据第一服务层路径中的第一路由段的源宿端交叉信息判断第一路由段的源宿端交叉是否一致；路由段获取模块若第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，路由段合并模块对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径，其中，第三服务层路径包括的虚拟路由段为对第一路由段和第二路由段进行合并得到，通过对交叉不一致的源宿端交叉对应的多个服务层路径的路由段的合并，可以实现站点已经配置的高阶信号交叉桥接与低阶通道的合并，将路由段合并得到的虚拟路由段用于光信号的传送时，就可以实现使用高阶信号交叉桥接低阶信号的方式传送光信号，无需重新建立与低阶等级的光信号的业务等级相一致的交叉调度，提高带宽资源利用效率。From the description of the present invention in the above embodiments, it can be seen that the information acquisition module acquires the bandwidth resource distribution information of multiple sites in the OTN routing system and the inter-site path opening information of adjacent sites, and the path generation module obtains the obtained bandwidth resource distribution information and station information. The first service layer path is generated by the inter-path opening information, and the crossover judging module judges whether the source-sink end crossover of the first routing segment is consistent according to the source-sink end crossover information of the first routing segment in the first service layer path; if the routing segment acquisition module The source-sink end crossing of the first routing segment is inconsistent, and the second routing segment in the second service layer path corresponding to the source-sink end crossing with the crossing inconsistency is obtained, and the routing segment merging module performs the first routing segment in the first service layer path Merging with the second routing segment in the second service layer path to generate a third service layer path, wherein the virtual routing segment included in the third service layer path is obtained by merging the first routing segment and the second routing segment, by For the merging of the routing segments of multiple service layer paths corresponding to the source-sink crossings with inconsistent crossings, the combination of high-order signal cross-bridges and low-order channels that have been configured at the site can be realized, and the virtual routing segments obtained by merging routing segments can be used for When transmitting optical signals, it is possible to transmit optical signals by cross-bridging high-order signals with low-order signals, without re-establishing cross-scheduling consistent with the service level of low-order optical signals, improving bandwidth resource utilization efficiency.
本发明实施例还提供一种计算机存储介质，其中，该计算机存储介质存储有程序，该程序执行包括上述方法实施例中记载的部分或全部步骤。An embodiment of the present invention also provides a computer storage medium, wherein the computer storage medium stores a program, and the program executes some or all of the steps described in the above method embodiments.
接下来介绍本发明实施例提供的另一种OTN的管理装置，请参阅图9所示，OTN的管理装置900包括：Next, another OTN management device provided by the embodiment of the present invention is introduced. As shown in FIG. 9, the OTN management device 900 includes:
输入装置901、输出装置902、处理器903和存储器904(其中。。。900中的处理器903的数量可以一个或多个，图9中以一个处理器为例)。在本发明的一些实施例中，输入装置901、输出装置902、处理器903和存储器904可通过总线或其它方式连接，其中，图9中以通过总线连接为例。The input device 901, the output device 902, the processor 903 and the memory 904 (the number of the processor 903 in ... 900 can be one or more, one processor is taken as an example in Fig. 9 ). In some embodiments of the present invention, the input device 901 , the output device 902 , the processor 903 and the memory 904 may be connected through a bus or in other ways, wherein connection through a bus is taken as an example in FIG. 9 .
其中，处理器903，用于执行如下步骤：Wherein, the processor 903 is configured to perform the following steps:
获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息；Obtain the bandwidth resource distribution information of multiple sites in the OTN routing system and the opening information of inter-site paths between adjacent sites;
根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径，其中，所述第一服务层路径包括所述多个站点中任意两个站点之间的多个光信号级别分别对应的路由段，每个路由段对应有源端、宿端以及源宿端交叉信息；Generate a first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent sites, where the first service layer path includes multiple links between any two sites in the multiple sites Each routing segment corresponds to each optical signal level, and each routing segment corresponds to the source end, sink end, and source-sink end crossover information;
根据所述第一服务层路径中的第一路由段的源宿端交叉信息判断所述第一路由段的源宿端交叉是否一致；judging whether the source-destination crossover of the first routing segment is consistent according to the source-destination crossover information of the first routing segment in the first service layer path;
若所述第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，所述第二服务层路径包括所述多个站点中除所述第一服务层路径包括的两个站点以外的其它两个站点之间的多个光信号级别对应的路由段；If the source-sink end crossings of the first routing segment are inconsistent, obtain a second routing segment in the second service layer path corresponding to the source-sink end crossing that is inconsistent with the crossing, and the second service layer path includes the plurality of sites Routing segments corresponding to multiple optical signal levels between other two sites other than the two sites included in the first service layer path;
对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径，所述第三服务层路径包括虚拟路由段，所述虚拟路由段的源端为所述第一路由段的源端且所述虚拟路由段的宿端为所述第二路由段的宿端，或，所述虚拟路由段的源端为所述第二路由段的源端且所述虚拟路由段的宿端为所述第一路由段的宿端。merging the first routing segment in the first service layer path and the second routing segment in the second service layer path to generate a third service layer path, where the third service layer path includes a virtual routing segment, The source end of the virtual routing segment is the source end of the first routing segment and the sink end of the virtual routing segment is the sink end of the second routing segment, or, the source end of the virtual routing segment is the The source end of the second routing segment and the sink end of the virtual routing segment are the sink end of the first routing segment.
在本发明的一些实施例中，处理器903，还用于执行如下步骤：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps:
若所述第一路由段的源宿端交叉不一致，将交叉不一致的源宿端交叉对应的第一服务层路径中的第一路由段的状态更新为占用。If the source-sink crossings of the first routing segment are inconsistent, update the state of the first routing segment in the first service layer path corresponding to the source-sink crossing with inconsistent crossings to occupied.
在本发明的一些实施例中，处理器903，还用于执行如下步骤：所述获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段之后，还包括：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps: after obtaining the second routing segment in the second service layer path corresponding to the source-sink crossover inconsistent with the crossover, further include:
若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端为接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用或空闲；If the source end of the second routing section in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover is the tributary port for accessing the optical signal, the second routing section in the second service layer path The status is updated as occupied or free;
若与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段的源端不是接入光信号的支路端口，将所述第二服务层路径中的第二路由段的状态更新为占用。If the source end of the second routing section in the second service layer path corresponding to the source-sink end crossover inconsistent with the crossover is not the tributary port for accessing the optical signal, the second routing section in the second service layer path Status updated to Occupied.
在本发明的一些实施例中，处理器903，还用于执行如下步骤：若所述源宿端交叉一致，所述方法还包括：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps: if the cross-connection of the source and sink ends is consistent, the method further includes:
若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均无交叉，更新所述第一路由段的状态为空闲；If the crossover of the source and sink ends is consistent, specifically, neither the source end nor the sink end of the first routing segment has crossover, updating the state of the first routing segment to be idle;
若所述源宿端交叉一致具体为所述第一路由段的源端和宿端均有交叉，更新所述第一路由段的状态为占用。If the crossover of the source and sink ends is consistent, specifically, both the source end and the sink end of the first routing segment are crossed, updating the state of the first routing segment to occupied.
在本发明的一些实施例中，处理器903，还用于执行如下步骤：所述根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径之后，还包括：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps: after generating the first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent stations, include:
若所述第一服务层路径包括的站点上已经配置了业务交叉，将与所述业务交叉相应的光信号级别对应的路由段的状态更新为占用。If a service crossover has been configured on the site included in the first service layer path, update the status of the routing segment corresponding to the optical signal level corresponding to the service crossover to occupied.
在本发明的一些实施例中，处理器903，还用于执行如下步骤：所述根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第一服务层路径之后，还包括：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps: after generating the first service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent stations, include:
若所述第一服务层路径中的所有路由段的状态为空闲或占用的其中一种状态，根据所述带宽资源分布信息和所述相邻站点的站间路径开通信息生成第四服务层路径，其中，所述第四服务层路径包括的两个站点至少有一个站点和所述第一服务层路径包括的两个站点不相同。If the state of all routing segments in the first service layer path is idle or occupied, generate a fourth service layer path according to the bandwidth resource distribution information and the inter-site path opening information of the adjacent site , wherein at least one of the two sites included in the fourth service layer trail is different from the two sites included in the first service layer trail.
在本发明的一些实施例中，处理器903，还用于执行如下步骤：所述对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径之后，还包括：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps: the pairing of the first routing segment in the first service layer path and the second routing segment in the second service layer path After merging and generating the third service layer path, it also includes:
判断所述第一服务层路径中除所述第一路由段以外的其它路由段的源宿端交叉是否一致，并按照对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述第一服务层路径中除所述第一路由段以外的其它路由段进行处理，直到将所述第一服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。Judging whether the source-destination crossovers of other routing segments other than the first routing segment in the first service layer path are consistent, and processing according to whether the source-destination crossings of the first routing segment are consistent The other routing segments in the first service layer path except the first routing segment are processed until the source-destination crossover of all routing segments in the first service layer path is judged to be consistent. .
在本发明的一些实施例中，处理器903，还用于执行如下步骤：所述对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径之后，还包括：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps: the pairing of the first routing segment in the first service layer path and the second routing segment in the second service layer path After merging and generating the third service layer path, it also includes:
判断所述第三服务层路径中的虚拟路由段的源宿端交叉是否一致，并按照对所述第一路由段的源宿端交叉是否一致所分别进行的处理方式对所述虚拟路由段进行处理，直到将所述第三服务层路径中的所有路由段的源宿端交叉是否一致都判断完毕为止。judging whether the source-destination crossover of the virtual routing segment in the third service layer path is consistent, and processing the virtual routing segment according to the processing method for whether the source-destination crossing of the first routing segment is consistent Processing until the determination of whether the source-destination end intersections of all routing segments in the third service layer path are consistent is completed.
在本发明的一些实施例中，处理器903，还用于执行如下步骤：所述对所述第一服务层路径中的第一路由段和所述第二服务层路径中的第二路由段进行合并，生成第三服务层路径之后，还包括：In some embodiments of the present invention, the processor 903 is further configured to perform the following steps: the pairing of the first routing segment in the first service layer path and the second routing segment in the second service layer path After merging and generating the third service layer path, it also includes:
接收用户发送的光信号；Receive the optical signal sent by the user;
根据所述光信号的信号级别从所述OTN路由系统中选择相应的虚拟路由段；Selecting a corresponding virtual routing segment from the OTN routing system according to the signal level of the optical signal;
对选择出的虚拟路由段对应的站点进行交叉配置；Perform cross configuration on the site corresponding to the selected virtual routing segment;
使用交叉配置后的站点对所述光信号进行传送。The optical signal is transmitted by using the cross-configured site.
通过以上实施例对本发明的描述可知，获取OTN路由系统中多个站点的带宽资源分布信息以及相邻站点的站间路径开通信息，根据获取到的带宽资源分布信息和站间路径开通信息生成第一服务层路径，根据第一服务层路径中的第一路由段的源宿端交叉信息判断第一路由段的源宿端交叉是否一致；若第一路由段的源宿端交叉不一致，获取与交叉不一致的源宿端交叉对应的第二服务层路径中的第二路由段，对第一服务层路径中的第一路由段和第二服务层路径中的第二路由段进行合并，生成第三服务层路径，其中，第三服务层路径包括的虚拟路由段为对第一路由段和第二路由段进行合并得到，通过对交叉不一致的源宿端交叉对应的多个服务层路径的路由段的合并，可以实现站点已经配置的高阶信号交叉桥接与低阶通道的合并，将路由段合并得到的虚拟路由段用于光信号的传送时，就可以实现使用高阶信号交叉桥接低阶信号的方式传送光信号，无需重新建立与低阶等级的光信号的业务等级相一致的交叉调度，提高带宽资源利用效率。Through the description of the present invention in the above embodiments, it can be seen that the bandwidth resource distribution information of multiple sites in the OTN routing system and the inter-site path opening information of adjacent sites are obtained, and the first step is generated according to the obtained bandwidth resource distribution information and inter-site path opening information. A service layer path, according to the source-sink end cross information of the first routing segment in the first service layer path, it is judged whether the source-sink end crossing of the first routing segment is consistent; if the source-sink end crossing of the first routing segment is inconsistent, obtain and The sources and sinks with inconsistent crossover cross the second routing segment in the corresponding second service layer path, merge the first routing segment in the first service layer path and the second routing segment in the second service layer path, and generate the second routing segment Three service layer paths, wherein, the virtual routing segment included in the third service layer path is obtained by merging the first routing segment and the second routing segment, by crossing the routes of multiple service layer paths corresponding to the source and sink ends with crossing inconsistencies The merging of high-order signal cross-bridges and low-order channels that have been configured at the site can be realized through the combination of high-order signal cross-bridges and low-order channels. Optical signals are transmitted in the form of optical signals, without re-establishing cross-scheduling consistent with the service level of low-order optical signals, improving bandwidth resource utilization efficiency.
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.
另外需说明的是，以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。另外，本发明提供的装置实施例附图中，模块之间的连接关系表示它们之间具有通信连接，具体可以实现为一条或多条通信总线或信号线。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。In addition, it should be noted that the device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be A physical unit can be located in one place, or it can be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that they have a communication connection, which can be specifically implemented as one or more communication buses or signal lines. It can be understood and implemented by those skilled in the art without creative effort.
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件的方式来实现，当然也可以通过专用硬件包括专用集成电路、专用CPU、专用存储器、专用元器件等来实现。一般情况下，凡由计算机程序完成的功能都可以很容易地用相应的硬件来实现，而且，用来实现同一功能的具体硬件结构也可以是多种多样的，例如模拟电路、数字电路或专用电路等。但是，对本发明而言更多情况下软件程序实现是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘，U盘、移动硬盘、只读存储器（ROM，Read-Only Memory）、随机存取存储器（RAM，Random Access Memory）、磁碟或者光盘等，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）执行本发明各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be realized by means of software plus necessary general-purpose hardware. Special components, etc. to achieve. In general, all functions completed by computer programs can be easily realized by corresponding hardware, and the specific hardware structure used to realize the same function can also be varied, such as analog circuits, digital circuits or special-purpose circuit etc. However, software program implementation is a better implementation mode for the present invention in most cases. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a floppy disk of a computer , U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc., including several instructions to make a computer device (which can be personal computer, server, or network equipment, etc.) to execute the methods described in various embodiments of the present invention.
综上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照上述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对上述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。In summary, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: it can still The technical solutions described in the above embodiments are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
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| CN201310682008.6ACN103716183B (en) | 2013-12-12 | 2013-12-12 | The management method and device of a kind of optical transfer network |
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| CN201310682008.6ACN103716183B (en) | 2013-12-12 | 2013-12-12 | The management method and device of a kind of optical transfer network |
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| CN201310682008.6AActiveCN103716183B (en) | 2013-12-12 | 2013-12-12 | The management method and device of a kind of optical transfer network |
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