CN102907044B - Service scheduling method and device under multi-broadband network gateway - Google Patents

Abstract

The embodiment of the invention provides a method and a device for scheduling services under a multi-broadband network gateway, and relates to the technical field of communication. The method comprises the following steps: the access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the access node uplink port to at least one Broadband Network Gateway (BNG) to trigger the at least one BNG to schedule or control the admission of the service according to the current bandwidth usage information of the access line and/or the current bandwidth usage information of the access node uplink port. The embodiment of the invention is mainly applied to the process of carrying out hierarchical scheduling or admission processing on services under a multi-BNG network architecture, and can improve the effective utilization rate of downlink transmission bandwidth.

Description

Translated fromChinese

多宽带网络网关下业务调度方法及装置Service scheduling method and device under multi-broadband network gateway

技术领域technical field

本发明涉及通信技术领域，尤其涉及一种多宽带网络网关下业务调度方法及装置。The invention relates to the field of communication technology, in particular to a method and device for service scheduling under multi-broadband network gateways.

背景技术Background technique

在TR101标准下的网络结构中，AN(accessnode，接入节点)终结多个用户的接入线(电话线或者光纤)，并负责将上行报文转发到Aggswitch(汇聚节点)，将下行报文转发到对应的接入线，所述Aggswitch汇聚多个AN的流量类别报文并转发到BNG(broadbandnetworkgateway，宽带网络网关)/BRAS(broadbandremoteAccessserver，宽带远程接入服务器)，该BNG/BRAS负责IP地址的分配，用户认证，IP业务识别等功能。In the network structure under the TR101 standard, AN (accessnode, access node) terminates the access lines (telephone lines or optical fibers) of multiple users, and is responsible for forwarding the uplink message to the Aggswitch (aggregation node), and forwarding the downlink message Forwarded to the corresponding access line, the Aggswitch aggregates the traffic class messages of multiple ANs and forwards them to BNG (broadbandnetworkgateway, broadband network gateway)/BRAS (broadbandremoteAccessserver, broadband remote access server), and the BNG/BRAS is responsible for the IP address distribution, user authentication, IP service identification and other functions.

为了保证不同业务的端到端QoS(QualityofService，服务质量)，在BNG引入了分层调度机制，例如，在双BNG网络架构中，一个BNG提供IPTV(InternetProtocolTelevision，交互式网络电视)，VoD(VideoOnDemand，视频点播)等业务，另一个BNG提供VoIP(VoiceoverInternetProtocol，IP承载语音)，Internet(国际互联网)，VPN(VirtualPrivateNetwork，虚拟专用网络)等业务。为了实现分层调度，对不同IP业务设置不同的二层优先级标签(比如ethernet帧的P标识位)。例如，VoIP业务具有最高优先级，视频业务具有其次优先级，Internet业务具有最低优先级。In order to ensure the end-to-end QoS (Quality of Service, quality of service) of different services, a hierarchical scheduling mechanism is introduced in the BNG. , video on demand) and other services, another BNG provides services such as VoIP (VoiceoverInternetProtocol, voice over IP), Internet (Internet), VPN (VirtualPrivateNetwork, virtual private network). In order to implement hierarchical scheduling, different Layer 2 priority labels (such as the P flag of the ethernet frame) are set for different IP services. For example, VoIP service has the highest priority, video service has the second priority, and Internet service has the lowest priority.

当来自上述两个BNG的多个报文到达汇聚节点和接入节点后，汇聚节点和接入节点根据优先级进行转发，举例来说：假设接入线的最大带宽为6M，如果需要进行转发的报文中，视频业务需要使用3M，VoIp业务使用120k，Internet业务需要使用2.9M，则接入节点将根据报文的优先级，丢弃20k的Internet报文。When multiple messages from the above two BNGs arrive at the aggregation node and the access node, the aggregation node and the access node will forward them according to the priority. For example: suppose the maximum bandwidth of the access line is 6M. Among the packets, the video service needs to use 3M, the VoIP service needs to use 120k, and the Internet service needs to use 2.9M, then the access node will discard 20k Internet packets according to the priority of the packets.

可以看出，由于在上述接入节点发生了丢包，造成了BNG到接入节点之间的下行传输带宽的浪费，需要说明的是，如果两个BNG的下行报文带宽超过了汇聚节点到接入节点之间的带宽，则丢包也可能在汇聚节点到接入节点之间发生，从而也造成BNG到汇聚节点之间的下行传输带宽的浪费。It can be seen that due to the packet loss at the above access node, the downlink transmission bandwidth between the BNG and the access node is wasted. It should be noted that if the downlink packet bandwidth of the two BNG exceeds the If the bandwidth between the access nodes is limited, packet loss may also occur between the sink node and the access node, which also causes a waste of downlink transmission bandwidth between the BNG and the sink node.

发明内容Contents of the invention

本发明实施例提供一种多宽带网络网关下业务调度方法及装置，提高了下行传输带宽的有效利用率。Embodiments of the present invention provide a service scheduling method and device under a multi-broadband network gateway, which improves the effective utilization rate of downlink transmission bandwidth.

为达到上述目的，本发明的实施例采用如下技术方案：In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

一方面，提供一种多宽带网络网关下业务调度方法，包括：On the one hand, a service scheduling method under a multi-broadband network gateway is provided, including:

获取接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息；Obtain current bandwidth usage information of the access line and/or current bandwidth usage information of the uplink port of the access node;

向至少一个宽带网络网关BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，以触发所述至少一个BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息对业务进行调度或准入控制。sending the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to at least one broadband network gateway BNG, so as to trigger the at least one BNG according to the current bandwidth usage information of the access line and/or Or the current bandwidth usage information of the uplink port of the access node to schedule or admit the service.

另一方面，提供一种通信装置，包括：In another aspect, a communication device is provided, comprising:

获取单元，用于获取接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息；An obtaining unit, configured to obtain current bandwidth usage information of the access line and/or current bandwidth usage information of the uplink port of the access node;

发送单元，用于向至少一个宽带网络网关BNG发送所述获取单元获取的接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，以触发所述至少一个BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息对业务进行调度或准入控制。The sending unit is configured to send the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node acquired by the acquisition unit to at least one broadband network gateway BNG, so as to trigger the at least one BNG according to the Scheduling or admission control is performed on services based on the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node.

由上述技术方案所描述的本发明实施例中，由接入节点向至少一个宽带网络网关BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。当新业务到来时，BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，可以判断出所述接入线和/或接入节点上行端口的当前带宽是否满足所述新业务的带宽需求，如果满足所述新业务的带宽需求，则允许该新业务进行准入，否则进行其他处理。从而避免了现有技术中新业务准入后，由于接入线或者接入节点上行端口的当前带宽无法满足新业务的带宽需求而发生丢包，导致BNG与接入节点之间的传输带宽造成浪费的问题，本发明实施例可以提高下行传输带宽的有效利用率。In the embodiment of the present invention described by the above technical solution, the access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to at least one broadband network gateway BNG. When a new service arrives, the BNG can determine the current bandwidth usage information of the access line and/or the uplink port of the access node according to the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node. Whether the bandwidth meets the bandwidth requirement of the new service, if the bandwidth requirement of the new service is met, the new service is allowed to be admitted, otherwise other processing is performed. This avoids packet loss due to the fact that the current bandwidth of the access line or the uplink port of the access node cannot meet the bandwidth requirements of the new service after the new service is admitted in the prior art, resulting in a loss of transmission bandwidth between the BNG and the access node. For the problem of waste, the embodiment of the present invention can improve the effective utilization rate of the downlink transmission bandwidth.

附图说明Description of drawings

图1为本发明实施例提供的一种多宽带网络网关下业务调度方法流程图；FIG. 1 is a flow chart of a service scheduling method under a multi-broadband network gateway provided by an embodiment of the present invention;

图2为本发明实施例提供的另一种多宽带网络网关下业务调度方法流程图；FIG. 2 is a flow chart of another service scheduling method under a multi-broadband network gateway provided by an embodiment of the present invention;

图3为本发明实施例提供的又一种多宽带网络网关下业务调度方法流程图；FIG. 3 is a flow chart of another method for scheduling services under a multi-broadband network gateway provided by an embodiment of the present invention;

图4为本发明实施例提供的还一种多宽带网络网关下业务调度方法流程图；FIG. 4 is a flow chart of a service scheduling method under a multi-broadband network gateway provided by an embodiment of the present invention;

图5为本发明实施例提供的再一种多宽带网络网关下业务调度方法流程图；Fig. 5 is a flow chart of another business scheduling method under a multi-broadband network gateway provided by an embodiment of the present invention;

图6为本发明实施例提供的通信装置的一种结构图；FIG. 6 is a structural diagram of a communication device provided by an embodiment of the present invention;

图7为本发明实施例提供的通信装置的另一种结构图。FIG. 7 is another structural diagram of a communication device provided by an embodiment of the present invention.

具体实施方式detailed description

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，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

如图1所示，本发明实施例提供一种多宽带网络网关下业务调度方法，包括如下步骤：As shown in Figure 1, the embodiment of the present invention provides a service scheduling method under a multi-broadband network gateway, including the following steps:

101、获取接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。101. Acquire current bandwidth usage information of an access line and/or current bandwidth usage information of an uplink port of an access node.

例如，所述接入线位于家庭网关与接入节点之间时，由于家庭网关与接入节点之间的数据传输都是由接入节点进行转发的，因而该接入节点可以对接入线上已传输的数据量进行统计，即可得知接入线的当前带宽使用信息。又如，接入节点对通过接入节点上行端口进行传输的数据量进行统计，即可得知接入节点上行端口的当前带宽使用信息。For example, when the access line is located between the home gateway and the access node, since the data transmission between the home gateway and the access node is forwarded by the access node, the access node can The current bandwidth usage information of the access line can be obtained by making statistics on the amount of data transmitted on the network. For another example, the access node can obtain the current bandwidth usage information of the uplink port of the access node by making statistics on the amount of data transmitted through the uplink port of the access node.

102、接入节点向至少一个宽带网络网关BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，以触发所述至少一个BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息对业务进行调度或准入控制。102. The access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to at least one broadband network gateway BNG, so as to trigger the at least one BNG according to the current bandwidth usage information of the access line The bandwidth usage information and/or the current bandwidth usage information of the uplink port of the access node perform scheduling or admission control on services.

本发明实施例中，由接入节点向至少一个宽带网络网关BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。当新业务到来时，BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，可以判断出所述接入线和/或接入节点上行端口的当前带宽是否满足所述新业务的带宽需求，如果满足所述新业务的带宽需求，则允许该新业务进行准入，否则进行其他处理。从而避免了现有技术中新业务准入后，由于接入线或者接入节点上行端口的当前带宽无法满足新业务的带宽需求而发生丢包，导致BNG与接入节点之间的传输带宽造成浪费的问题，本发明实施例可以提高下行传输带宽的有效利用率。In the embodiment of the present invention, the access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to at least one broadband network gateway BNG. When a new service arrives, the BNG can determine the current bandwidth usage information of the access line and/or the uplink port of the access node according to the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node. Whether the bandwidth meets the bandwidth requirement of the new service, if the bandwidth requirement of the new service is met, the new service is allowed to be admitted, otherwise other processing is performed. This avoids packet loss due to the fact that the current bandwidth of the access line or the uplink port of the access node cannot meet the bandwidth requirements of the new service after the new service is admitted in the prior art, resulting in a loss of transmission bandwidth between the BNG and the access node. For the problem of waste, the embodiment of the present invention can improve the effective utilization rate of the downlink transmission bandwidth.

需要说明的是，所述接入线的当前带宽使用信息具体可以为所述接入线的当前已使用带宽，由于所述接入线的最大带宽可以预先设置在BNG上，或者由BNG从网管系统中进行获取。因而BNG接收到所述接入线的当前已使用带宽后，利用所述接入线的最大带宽减去所述接入线的已使用带宽，即可计算得出所述接入线的当前剩余带宽。It should be noted that the current bandwidth usage information of the access line can specifically be the currently used bandwidth of the access line, since the maximum bandwidth of the access line can be preset on the BNG, or the BNG can obtain the information from the network management system. obtained in the system. Therefore, after receiving the currently used bandwidth of the access line, the BNG can calculate the current remaining bandwidth of the access line by subtracting the used bandwidth of the access line from the maximum bandwidth of the access line. bandwidth.

或者，所述接入线的当前带宽使用信息具体可以为所述接入线的当前剩余带宽。Alternatively, the current bandwidth usage information of the access line may specifically be the current remaining bandwidth of the access line.

或者，所述接入线的当前带宽使用信息具体可以为所述接入线中特定流量类别的当前已使用带宽，例如，所述接入线中视频类业务的当前已使用带宽。Alternatively, the current bandwidth usage information of the access line may specifically be the currently used bandwidth of a specific traffic category in the access line, for example, the currently used bandwidth of video services in the access line.

或者，所述接入线的当前带宽使用信息具体可以为所述接入线中特定流量类别的当前剩余带宽。例如，当在接入线的最大使用带宽中为特定流量类别分配了可使用的最大带宽，则将在接入线的最大使用带宽中为特定流量类别分配的可使用的最大带宽与上述所述接入线中特定流量类别的当前已使用带宽相减，即可获得所述接入线中特定流量类别的当前剩余带宽。Alternatively, the current bandwidth usage information of the access line may specifically be the current remaining bandwidth of a specific traffic category in the access line. For example, when the maximum usable bandwidth allocated to a specific traffic category in the maximum used bandwidth of the access line, the maximum usable bandwidth allocated to the specific traffic category in the maximum used bandwidth of the access line is the same as the above-mentioned The current remaining bandwidth of the specific traffic category in the access line can be obtained by subtracting the currently used bandwidth of the specific traffic category in the access line.

同理，所述接入节点上行端口的当前带宽使用信息具体为所述接入节点上行端口的当前已使用带宽，由于所述接入节点上行端口的最大带宽可以预先设置在BNG上，或者由BNG从网管系统中进行获取。因而BNG接收到所述接入节点上行端口的当前已使用带宽后，利用所述接入节点上行端口的最大带宽减去所述接入节点上行端口的已使用带宽，即可计算得出所述接入节点上行端口的当前剩余带宽。Similarly, the current bandwidth usage information of the uplink port of the access node is specifically the currently used bandwidth of the uplink port of the access node, since the maximum bandwidth of the uplink port of the access node can be preset on the BNG, or by BNG is obtained from the network management system. Therefore, after the BNG receives the currently used bandwidth of the uplink port of the access node, the maximum bandwidth of the uplink port of the access node is used to subtract the used bandwidth of the uplink port of the access node to calculate the The current remaining bandwidth of the uplink port of the access node.

或者，所述接入节点上行端口的当前带宽使用信息具体为所述接入节点上行端口的当前剩余带宽。Alternatively, the current bandwidth usage information of the uplink port of the access node is specifically the current remaining bandwidth of the uplink port of the access node.

或者，所述接入节点上行端口的当前带宽使用信息具体为所述接入节点上行端口中特定流量类别的当前已使用带宽，例如，所述接入节点上行端口中视频类业务的当前已使用带宽。Alternatively, the current bandwidth usage information of the uplink port of the access node is specifically the currently used bandwidth of a specific traffic category in the uplink port of the access node, for example, the currently used bandwidth of video services in the uplink port of the access node bandwidth.

或者，所述接入节点上行端口的当前带宽使用信息具体为所述接入节点上行端口中特定流量类别的当前剩余带宽。例如，当在接入节点上行端口中的最大使用带宽中为特定流量类别分配了可使用的最大带宽，则将在接入节点上行端口中的最大使用带宽中为特定流量类别分配的可使用的最大带宽与上述所述接入节点上行端口中特定流量类别的当前已使用带宽相减，即可获得所述接入线中特定流量类别的当前剩余带宽。Alternatively, the current bandwidth usage information of the uplink port of the access node is specifically the current remaining bandwidth of a specific traffic category in the uplink port of the access node. For example, when the maximum available bandwidth for a specific traffic category is allocated in the maximum available bandwidth of the uplink port of the access node, the available available bandwidth allocated for the specific traffic category in the maximum available bandwidth of the uplink port of the access node Subtracting the maximum bandwidth from the currently used bandwidth of the specific traffic category in the uplink port of the access node, the current remaining bandwidth of the specific traffic category in the access line can be obtained.

进一步地，上述102具体采用下述方式实现：接入节点按照接入节点控制协议ANCP协议向至少一个BNG发送report消息，所述report消息中包括接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。Further, the above 102 is specifically implemented in the following manner: the access node sends a report message to at least one BNG according to the access node control protocol ANCP protocol, and the report message includes the current bandwidth usage information of the access line and/or access The current bandwidth usage information of the uplink port of the node.

本发明实施例提供的接入节点包括DSLAM(DigitalSubscriberLineAccessMultiplexer，数字用户线接入复用器)或者OLT(OpticalLineTermination，光缆终端设备)。The access node provided by the embodiment of the present invention includes a DSLAM (Digital Subscriber Line Access Multiplexer, digital subscriber line access multiplexer) or an OLT (Optical Line Termination, optical cable terminal equipment).

所述BNG也可以称之为BRAS(broadbandremoteAccessserver，宽带远程接入服务器)或者IPedge。The BNG may also be called BRAS (broadband remote access server, broadband remote access server) or IPedge.

如图2所示的实施例中，采用双BNG网络架构进行IPTV应用，其中，BNG1提供Internet接入，VoIP，企业VPN等业务，BNG2提供IPTV以及VoD等视频业务。在接入节点进行组播报文复制后，向至少一个BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。下面详细描述一种多宽带网络网关下业务调度方法，包括如下步骤：In the embodiment shown in Figure 2, the dual BNG network architecture is used for IPTV applications, wherein BNG1 provides services such as Internet access, VoIP, and enterprise VPN, and BNG2 provides video services such as IPTV and VoD. After the access node replicates the multicast message, it sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to at least one BNG. The following describes a service scheduling method under a multi-broadband network gateway in detail, including the following steps:

201.家庭网关1通过接入线1向接入节点发送IGMPjoin请求消息，请求观看IPTV频道A。201. The home gateway 1 sends an IGMP join request message to the access node through the access line 1, requesting to watch IPTV channel A.

202.接入节点接收所述IGMPjoin请求消息，对所述IGMPjoin请求消息进行检测(亦即图2中的步骤201和202之间的“snooping”步骤)，检测出该频道A对应的组播VLAN(VirtualLocalAreaNetwork，虚拟局域网)上没有报文传输，亦即该接入节点下的用户首次请求观看频道A，此时接入节点不做报文复制，直接把所述IGMPjoin请求消息通过上行端口转发到BNG2。202. The access node receives the IGMPjoin request message, detects the IGMPjoin request message (that is, the "snooping" step between steps 201 and 202 in Figure 2), and detects the multicast VLAN corresponding to the channel A (VirtualLocalAreaNetwork, virtual local area network), there is no message transmission, that is, the user under the access node requests to watch channel A for the first time, and the access node does not copy the message at this time, and directly forwards the IGMP join request message through the uplink port to BNG2.

BNG2接收到该IGMPjoin消息后，开始在组播VLAN上传输频道A的IPTV报文，接入节点在组播VLAN上接收到频道A的IPTV报文后，在家庭网关1对应的接入线1上转发该频道A的IPTV报文。该家庭网关1对应的接入线1亦即：家庭网关1的用户端口1与接入节点之间的传输线路。After BNG2 receives the IGMPjoin message, it starts to transmit the IPTV message of channel A on the multicast VLAN. After the access node receives the IPTV message of channel A on the multicast VLAN, Forward the IPTV packets of the channel A. The access line 1 corresponding to the home gateway 1 is the transmission line between the user port 1 of the home gateway 1 and the access node.

203.接入节点按照ANCP协议向BNG1发送report消息，所述report消息包括接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。203. The access node sends a report message to BNG1 according to the ANCP protocol, and the report message includes the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node.

可选的，所述report消息具体包括：所述接入线1的当前已使用带宽和所述接入节点上行端口的当前已使用带宽。例如，如果所述频道A的IPTV报文占用带宽为3Mb/S，此时，所述接入线的当前已使用带宽为3Mb/S，所述接入节点上行端口的当前已使用带宽为3Mb/S。Optionally, the report message specifically includes: the currently used bandwidth of the access line 1 and the currently used bandwidth of the uplink port of the access node. For example, if the bandwidth occupied by the IPTV message of channel A is 3Mb/s, at this time, the currently used bandwidth of the access line is 3Mb/s, and the currently used bandwidth of the uplink port of the access node is 3Mb /S.

或者，所述report消息具体包括：所述接入线1的当前剩余带宽和所述接入节点上行端口的当前剩余带宽。Alternatively, the report message specifically includes: the current remaining bandwidth of the access line 1 and the current remaining bandwidth of the uplink port of the access node.

需要说明的是，在进行IPTV应用时，BNG2接收到接入节点发送的IGMPjoin消息后，可以获得当前进行传输的是哪个频道的IPTV报文，由于BNG2已经预先保存有各个频道的IPTV报文所占用的带宽，此时根据IGMPjoin消息即可得出接入线的当前已使用带宽和所述接入节点上行端口的当前已使用带宽。因而，本实施例中不需要向BNG2发送上述report消息。It should be noted that when performing IPTV applications, after receiving the IGMP join message sent by the access node, BNG2 can obtain the IPTV message of which channel is currently being transmitted, because BNG2 has pre-stored the IPTV messages of each channel The occupied bandwidth, at this time, the currently used bandwidth of the access line and the currently used bandwidth of the uplink port of the access node can be obtained according to the IGMP join message. Therefore, in this embodiment, there is no need to send the above report message to BNG2.

204.家庭网关2通过对应的接入线2向接入节点发送IGMPjoin请求消息，也请求观看IPTV频道A。204. The home gateway 2 sends an IGMP join request message to the access node through the corresponding access line 2, and also requests to watch the IPTV channel A.

接入节点接收到所述IGMPjoin请求消息后，对所述IGMPjoin请求消息进行检测(亦即图2中的步骤204与205之间的“snooping”步骤)，检测出该频道A对应的组播VLAN上已经有IPTV报文传输，此时接入节点直接复制该频道A对应的组播VLAN上的IPTV报文，并将复制后的IPTV报文通过用户端口2发送到家庭网关2。After the access node receives the IGMPjoin request message, it detects the IGMPjoin request message (that is, the "snooping" step between steps 204 and 205 in Figure 2), and detects the multicast VLAN corresponding to the channel A IPTV packets have already been transmitted on the network, and now the access node directly copies the IPTV packets on the multicast VLAN corresponding to the channel A, and sends the copied IPTV packets to the home gateway 2 through the user port 2.

205.接入节点向BNG2发送所述IGMPjoin请求消息，以便于将接入节点已复制该频道A的IPTV报文的信息通知给所述BNG2。205. The access node sends the IGMP join request message to BNG2, so as to notify the BNG2 of the information that the access node has copied the IPTV packet of channel A.

206.接入节点按照ANCP协议向BNG1发送report消息，所述report消息包括接入线的当前带宽使用信息。206. The access node sends a report message to BNG1 according to the ANCP protocol, and the report message includes the current bandwidth usage information of the access line.

需要说明的是，由于此时接入节点上行端口的传输带宽并没有发生变化，此时上述report消息中可以不用携带所述接入节点上行端口的当前已使用带宽，只需要携带所述接入线的当前已使用带宽即可。It should be noted that since the transmission bandwidth of the uplink port of the access node has not changed at this time, the above report message does not need to carry the currently used bandwidth of the uplink port of the access node at this time, and only needs to carry the access The currently used bandwidth of the line is enough.

207.BNG1接收上述report消息后，可以得知家庭网关1对应的接入线1的带宽已使用3Mb/s，家庭网关2对应的接入线2的带宽已使用3M/s，以及接入节点到汇聚节点之间的带宽已使用3Mb/s。BNG1通过网管系统或者其他控制信令还可得到家庭网关1对应的接入线1的最大带宽为6Mb/s，家庭网关2对应的接入线2的最大带宽为6Mb/s，以及接入节点上行端口的最大带宽假设为100Mb/s。此时，BNG1可以得出家庭网关1对应的接入线1的当前剩余带宽为3Mb/s，家庭网关2对应的接入线2的剩余带宽为3Mb/s，以及接入节点上行端口的剩余带宽假设为97Mb/s。207. After BNG1 receives the above report message, it can know that the bandwidth of access line 1 corresponding to home gateway 1 has used 3Mb/s, the bandwidth of access line 2 corresponding to home gateway 2 has used 3M/s, and the access node The bandwidth to the sink node has been used at 3Mb/s. Through the network management system or other control signaling, BNG1 can also obtain that the maximum bandwidth of the access line 1 corresponding to the home gateway 1 is 6Mb/s, the maximum bandwidth of the access line 2 corresponding to the home gateway 2 is 6Mb/s, and the access node The maximum bandwidth of the uplink port is assumed to be 100Mb/s. At this time, BNG1 can obtain that the current remaining bandwidth of access line 1 corresponding to home gateway 1 is 3Mb/s, the remaining bandwidth of access line 2 corresponding to home gateway 2 is 3Mb/s, and the remaining bandwidth of the uplink port of the access node is 3Mb/s. The bandwidth is assumed to be 97Mb/s.

当有一个新业务到达BNG1，需要传送到家庭网关1或者家庭网关2时，BNG1根据上述接入线的剩余带宽和接入节点上行端口的剩余带宽确定是否可以传递该新业务。如果该新业务需要的带宽超过了剩余带宽，比如有个新业务需要4M/s，均超过了上述接入线1和接入线2的剩余带宽，则要么拒绝该新业务(准入控制)，要么就对该业务进行丢包，将该业务带宽限制为3Mb/s(分层调度)。具体对上述新业务进行拒绝，还是做带宽限制，需要根据该新业务的属性确定。如果该新业务不能容忍丢包，则拒绝该新业务，否则进行带宽限制。When a new service arrives at BNG1 and needs to be transmitted to home gateway 1 or home gateway 2, BNG1 determines whether the new service can be delivered according to the remaining bandwidth of the access line and the remaining bandwidth of the uplink port of the access node. If the bandwidth required by the new service exceeds the remaining bandwidth, for example, a new service requires 4M/s, which exceeds the remaining bandwidth of the above-mentioned access line 1 and access line 2, then either reject the new service (admission control) , or the service is lost, and the service bandwidth is limited to 3Mb/s (hierarchical scheduling). Specifically, whether to reject the above-mentioned new service or to limit the bandwidth needs to be determined according to the attributes of the new service. If the new service cannot tolerate packet loss, the new service is rejected; otherwise, the bandwidth is limited.

图2所示实施例中，由接入节点向至少一个宽带网络网关BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。当新业务到来时，BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，可以判断出所述接入线和/或接入节点上行端口的当前带宽是否满足所述新业务的带宽需求，如果满足所述新业务的带宽需求，则允许该新业务进行准入，否则进行其他处理。从而避免了现有技术中新业务准入后，由于接入线或者接入节点上行端口的当前带宽无法满足新业务的带宽需求而发生丢包，导致BNG与接入节点之间的传输带宽造成浪费的问题，本发明实施例可以提高下行传输带宽的有效利用率。In the embodiment shown in Fig. 2, the access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to at least one broadband network gateway BNG. When a new service arrives, the BNG can determine the current bandwidth usage information of the access line and/or the uplink port of the access node according to the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node. Whether the bandwidth meets the bandwidth requirement of the new service, if the bandwidth requirement of the new service is met, the new service is allowed to be admitted, otherwise other processing is performed. This avoids packet loss due to the fact that the current bandwidth of the access line or the uplink port of the access node cannot meet the bandwidth requirements of the new service after the new service is admitted in the prior art, resulting in a loss of transmission bandwidth between the BNG and the access node. For the problem of waste, the embodiment of the present invention can improve the effective utilization rate of the downlink transmission bandwidth.

另外，现有技术中，当BNG1和BNG2提供的业务发生冲突时，例如，BNG1和BNG2均向接入节点提供了视频业务，此时，BNG1的视频业务和BNG2的视频业务具有相同的二层优先级，例如，BNG1的视频业务和BNG2的视频业务均为次优先级。则接入节点接收到上述BNG1的视频业务(占用带宽3M)和BNG2的视频业务(占用带宽3M)后，发现这两个视频业务所需要的带宽已超过接入线的最大带宽(比如6M)，则，接入节点根据业务的二层优先级，可能随机将上述BNG1的视频业务和BNG2的视频业务均进行丢包处理，导致上述BNG1的视频业务和BNG2的视频业务均无法进行。In addition, in the prior art, when the services provided by BNG1 and BNG2 conflict, for example, both BNG1 and BNG2 provide video services to the access node, at this time, the video service of BNG1 and the video service of BNG2 have the same Layer 2 Priority, for example, the video service of BNG1 and the video service of BNG2 are both secondary priorities. After the access node receives the video service of BNG1 (occupied bandwidth 3M) and the video service of BNG2 (occupied bandwidth 3M), it is found that the bandwidth required by these two video services has exceeded the maximum bandwidth of the access line (such as 6M) , then, according to the layer 2 priority of the service, the access node may randomly perform packet loss processing on both the video service of BNG1 and the video service of BNG2, so that the video service of BNG1 and the video service of BNG2 cannot be performed.

而，采用本发明实施例提供的方案，BNG可以获取接入线的当前带宽使用信息，例如，BNG1先向接入节点发送了视频业务，此时接入线的带宽可以满足该BNG1的视频业务，因而，将BNG1的视频业务发送给相应的用户。此时接入节点上报接入线当前的带宽使用信息给BNG2，BNG2发现此时接入线的剩余带宽已无法满足BNG2的视频业务的带宽需求，则拒绝BNG2的视频业务，待以后接入线的剩余带宽满足BNG2的视频业务的带宽需求时，允许BNG2的视频业务准入。可以看出，本发明实施例可以避免现有技术中接入节点随机丢弃业务报文的问题，保证业务报文的传输质量。However, by adopting the solution provided by the embodiment of the present invention, BNG can obtain the current bandwidth usage information of the access line. For example, BNG1 first sends video services to the access node, and the bandwidth of the access line can meet the video service requirements of BNG1 at this time. , thus, the video service of BNG1 is sent to the corresponding user. At this time, the access node reports the current bandwidth usage information of the access line to BNG2. When BNG2 finds that the remaining bandwidth of the access line cannot meet the bandwidth requirements of BNG2's video service, it rejects the video service of BNG2 and waits to access the line in the future. When the remaining bandwidth of BNG2 meets the bandwidth requirement of BNG2's video service, the video service of BNG2 is allowed to be admitted. It can be seen that the embodiment of the present invention can avoid the problem that the access node randomly discards the service message in the prior art, and guarantee the transmission quality of the service message.

如图3所示的实施例中，采用双BNG网络架构进行IPTV应用，其中，BNG1提供Internet接入，VoIP，企业VPN等业务，BNG2提供IPTV以及VoD等视频业务。当接入节点接收到BNG的查询消息后，向所述BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。下面详细描述一种多宽带网络网关下业务调度方法，包括如下步骤：In the embodiment shown in Figure 3, the dual BNG network architecture is used for IPTV applications, wherein BNG1 provides services such as Internet access, VoIP, and enterprise VPN, and BNG2 provides video services such as IPTV and VoD. After receiving the query message of the BNG, the access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to the BNG. The following describes a service scheduling method under a multi-broadband network gateway in detail, including the following steps:

301.家庭网关1通过接入线1向接入节点发送IGMPjoin请求消息，请求观看IPTV频道A。301. The home gateway 1 sends an IGMP join request message to the access node through the access line 1, requesting to watch IPTV channel A.

302.接入节点接收所述IGMPjoin请求消息，对所述IGMPjoin请求消息进行检测(亦即图3中的步骤301与302之间的“snooping”步骤)，检测出该频道A对应的组播VLAN上没有报文传输，亦即该接入节点下的用户首次请求观看频道A，此时接入节点不做报文复制，直接把所述IGMPjoin请求消息通过上行端口转发到BNG2。302. The access node receives the IGMP join request message, detects the IGMP join request message (that is, the "snooping" step between steps 301 and 302 in Figure 3), and detects the multicast VLAN corresponding to the channel A There is no message transmission, that is, the user under the access node requests to watch channel A for the first time. At this time, the access node does not copy the message, and directly forwards the IGMP join request message to BNG2 through the uplink port.

BNG2接收到该IGMPjoin消息后，开始在组播VLAN上传输频道A的IPTV报文，接入节点在组播VLAN上接收到频道A的IPTV报文后，在家庭网关1对应的接入线1上转发该频道A的IPTV报文。After BNG2 receives the IGMPjoin message, it starts to transmit the IPTV message of channel A on the multicast VLAN. After the access node receives the IPTV message of channel A on the multicast VLAN, Forward the IPTV packets of the channel A.

303.当新业务到达BNG1时，如果该新业务需要传送到家庭网关1，并且该新业务需要一定的带宽保证(亦即不允许丢包)，比如一个视频类应用。此时，BNG1按照ANCP协议向接入节点发送ANCP查询消息。303. When a new service arrives at BNG1, if the new service needs to be transmitted to the home gateway 1, and the new service requires a certain bandwidth guarantee (that is, packet loss is not allowed), such as a video application. At this time, BNG1 sends an ANCP query message to the access node according to the ANCP protocol.

需要说明的是，如果上述新业务为BE(尽力而为类别)类业务，亦即该新业务允许一定程度的丢包处理，此时BNG1可不用向接入节点发送ANCP查询消息。It should be noted that if the above-mentioned new service is a BE (Best Effort) service, that is, the new service allows a certain degree of packet loss processing, then BNG1 does not need to send an ANCP query message to the access node.

304.接入节点接收到上述查询消息后，查询接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息；304. After receiving the above query message, the access node queries the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node;

并按照ANCP协议向BNG1发送report消息，所述report消息包括所述查询到的接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。And send a report message to BNG1 according to the ANCP protocol, where the report message includes the current bandwidth usage information of the queried access line and/or the current bandwidth usage information of the uplink port of the access node.

具体地，所述report消息包括所述查询到的接入线的剩余带宽和接入节点上行端口的剩余带宽。Specifically, the report message includes the queried remaining bandwidth of the access line and the remaining bandwidth of the uplink port of the access node.

或者，所述report消息包括所述查询到的接入线的已使用带宽和接入节点上行端口的已使用带宽Alternatively, the report message includes the queried used bandwidth of the access line and the used bandwidth of the uplink port of the access node

例如，如果上述302中，IPTV报文占用家庭网关1对应的接入线1的带宽为3Mb/s，家庭网关1对应的接入线1的最大带宽为6Mb/s，接入节点上行端口的的最大带宽假设为100Mb/s，则此时接入线1的剩余带宽为6Mb/s-3Mb/s＝3Mb/s；接入节点上行端口的剩余带宽为100Mb/s-3Mb/s＝97Mb/s(假设没有其他用户占用传输带宽，否则上行端口还要减去其他用户使用带宽)。For example, if in the above 302, the bandwidth of the access line 1 corresponding to the home gateway 1 occupied by the IPTV message is 3Mb/s, the maximum bandwidth of the access line 1 corresponding to the home gateway 1 is 6Mb/s, and the uplink port of the access node Assuming that the maximum bandwidth of the network is 100Mb/s, then the remaining bandwidth of the access line 1 is 6Mb/s-3Mb/s=3Mb/s; the remaining bandwidth of the uplink port of the access node is 100Mb/s-3Mb/s=97Mb /s (assuming that no other users occupy the transmission bandwidth, otherwise the uplink port will subtract the bandwidth used by other users).

需要说明的是，如果在接入线的最大带宽中为特定流量类别分配了可使用的最大带宽，此时，本步骤还可以查询特定流量类别的当前已使用带宽，并向所述BNG1发送report消息，所述report消息包括所述接入线中特定流量类别的当前已使用带宽。当BNG1接收到该report消息后，可以根据预先在接入线的最大带宽中为特定流量类别分配的最大使用带宽和接入线中特定流量类别的当前已使用带宽，获知接入线中特定流量类别当前的可使用的剩余带宽，以便在该特定流量类别的业务达到时，进行准确的接入控制或者分层调度。当然，上述report消息也可以包括接入线中特定流量类别当前的剩余带宽。在此不作具体限定。It should be noted that if the maximum available bandwidth is allocated to a specific traffic category in the maximum bandwidth of the access line, at this time, this step can also query the currently used bandwidth of the specific traffic category, and send a report to the BNG1 message, the report message includes the currently used bandwidth of a specific traffic category in the access line. When BNG1 receives the report message, it can know the specific traffic in the access line according to the maximum bandwidth allocated in advance for the specific traffic category in the maximum bandwidth of the access line and the currently used bandwidth of the specific traffic category in the access line The current available remaining bandwidth of the category, so that when the traffic of the specific traffic category arrives, accurate access control or hierarchical scheduling can be performed. Of course, the above report message may also include the current remaining bandwidth of a specific traffic category in the access line. No specific limitation is made here.

305.BNG1接收上述report消息后，对上述新业务进行分层调度或者执行准入控制的过程，参见上述图2中步骤207。305. After receiving the above report message, BNG1 performs hierarchical scheduling or admission control on the above new service, refer to step 207 in FIG. 2 above.

图3所示实施例中，由接入节点接收到BNG的查询消息后，向BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。当新业务到来时，BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，可以判断出所述接入线和/或接入节点上行端口的当前带宽是否满足所述新业务的带宽需求，如果满足所述新业务的带宽需求，则允许该新业务进行准入，否则进行其他处理。从而避免了现有技术中新业务准入后，由于接入线或者接入节点上行端口的当前带宽无法满足新业务的带宽需求而发生丢包，导致BNG与接入节点之间的传输带宽造成浪费的问题，本发明实施例可以提高下行传输带宽的有效利用率。In the embodiment shown in FIG. 3 , after the access node receives the query message of the BNG, it sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to the BNG. When a new service arrives, the BNG can determine the current bandwidth usage information of the access line and/or the uplink port of the access node according to the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node. Whether the bandwidth meets the bandwidth requirement of the new service, if the bandwidth requirement of the new service is met, the new service is allowed to be admitted, otherwise other processing is performed. This avoids packet loss due to the fact that the current bandwidth of the access line or the uplink port of the access node cannot meet the bandwidth requirements of the new service after the new service is admitted in the prior art, resulting in a loss of transmission bandwidth between the BNG and the access node. For the problem of waste, the embodiment of the present invention can improve the effective utilization rate of the downlink transmission bandwidth.

图4所示的实施例中，采用双BNG网络架构进行IPTV应用，其中，BNG1提供Internet接入，VoIP，企业VPN等业务，BNG2提供IPTV以及VoD等视频业务。在接入节点上行端口的当前已使用带宽大于预设阈值时，向至少一个BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。下面详细描述一种多宽带网络网关下业务调度方法，包括如下步骤：In the embodiment shown in Fig. 4, dual BNG network architecture is adopted for IPTV application, wherein, BNG1 provides services such as Internet access, VoIP, enterprise VPN, etc., and BNG2 provides video services such as IPTV and VoD. When the currently used bandwidth of the uplink port of the access node is greater than the preset threshold, the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node are sent to at least one BNG. The following describes a service scheduling method under a multi-broadband network gateway in detail, including the following steps:

401.家庭网关1通过接入线1向接入节点发送IGMPjoin请求消息，请求观看IPTV频道A。401. The home gateway 1 sends an IGMP join request message to the access node through the access line 1, requesting to watch IPTV channel A.

402.接入节点接收所述IGMPjoin请求消息，对所述IGMPjoin请求消息进行检测(亦即图4中的步骤401与402之间的“snooping”步骤)，检测出该频道A对应的组播VLAN上没有报文传输，亦即该接入节点下的用户首次请求观看频道A，此时接入节点不做报文复制，直接把所述IGMPjoin请求消息通过上行端口转发到BNG2。402. The access node receives the IGMPjoin request message, detects the IGMPjoin request message (that is, the "snooping" step between steps 401 and 402 in Figure 4), and detects the multicast VLAN corresponding to the channel A There is no message transmission, that is, the user under the access node requests to watch channel A for the first time. At this time, the access node does not copy the message, and directly forwards the IGMP join request message to BNG2 through the uplink port.

BNG2接收到该IGMPjoin消息后，开始在组播VLAN上传输频道A的IPTV报文，接入节点在组播VLAN上接收到频道A的IPTV报文后，在家庭网关1对应的接入线1上转发该频道A的IPTV报文。After BNG2 receives the IGMPjoin message, it starts to transmit the IPTV message of channel A on the multicast VLAN. After the access node receives the IPTV message of channel A on the multicast VLAN, Forward the IPTV packets of the channel A.

403.当新业务到达BNG1，该新业务需要通过单播形式传送到家庭网关2。BNG1直接把该新业务映射为对应的流量类别后，发送到接入节点，接入节点把该流量类别的报文发送到家庭网关2。403. When a new service arrives at the BNG1, the new service needs to be transmitted to the home gateway 2 through unicast. BNG1 directly maps the new service to the corresponding traffic category, and then sends it to the access node, and the access node sends the message of the traffic category to the home gateway 2 .

404.接入节点检测上行端口的带宽变化情况，如果检测到上行端口的已使用带宽大于预设阈值时，此时说明接入节点上行端口发生了拥塞，则向BNG1发送携带有所述接入节点上行端口的带宽使用信息的report消息。404. The access node detects the change of the bandwidth of the uplink port. If it detects that the used bandwidth of the uplink port is greater than the preset threshold, it means that the uplink port of the access node is congested, and sends a message carrying the access link to BNG1. The report message of the bandwidth usage information of the uplink port of the node.

例如，当检测出接入节点上行端口的已使用带宽大于所述接入节点上行端口的最大带宽的80％，则通过ANCP协议向BNG1发送report消息。For example, when it is detected that the used bandwidth of the uplink port of the access node is greater than 80% of the maximum bandwidth of the uplink port of the access node, a report message is sent to BNG1 through the ANCP protocol.

所述接入节点上行端口的当前带宽使用信息包括以下任一种信息：所述接入节点上行端口中特定流量类别的当前已使用带宽、所述接入节点上行端口中特定流量类别的当前剩余带宽、所述接入节点上行端口的当前已使用带宽或者所述接入节点上行端口的当前剩余带宽。The current bandwidth usage information of the uplink port of the access node includes any of the following information: the currently used bandwidth of a specific traffic category in the uplink port of the access node, the current remaining bandwidth of a specific traffic category in the uplink port of the access node Bandwidth, the currently used bandwidth of the uplink port of the access node, or the current remaining bandwidth of the uplink port of the access node.

需要说明的是，如果在接入节点上行端口的最大带宽中为特定流量类别分配了可使用的最大带宽，此时，本步骤还可以在接入节点上行端口中特定流量类别的当前已使用带宽大于预设门限值时，向至少一个BNG发送接入节点上行端口的当前带宽使用信息。例如，检测到接入节点上行端口中视频类业务的当前已使用带宽大于所述接入节点上行端口的最大带宽的80％，则通过ANCP协议向BNG1发送report消息，所述report消息包括所述接入点上行端口中特定流量类别的当前已使用带宽。当BNG1接收到该report消息后，可以根据预先在接入节点上行端口为特定流量类别分配的最大使用带宽和接入节点上行端口中特定流量类别的当前已使用带宽，获知接入节点上行端口中特定流量类别当前可使用的剩余带宽，以便在该特定流量类别的业务达到时，进行准确的接入控制或者分层调度。当然，上述report消息也可以包括特定流量类别当前的剩余带宽。在此不作具体限定。It should be noted that if the maximum usable bandwidth of the specific traffic category is allocated in the maximum bandwidth of the uplink port of the access node, at this time, this step can also be used in the current used bandwidth of the specific traffic category in the uplink port of the access node When it is greater than the preset threshold value, send the current bandwidth usage information of the uplink port of the access node to at least one BNG. For example, if it is detected that the currently used bandwidth of the video service in the uplink port of the access node is greater than 80% of the maximum bandwidth of the uplink port of the access node, a report message is sent to BNG1 through the ANCP protocol, and the report message includes the The current used bandwidth for a specific traffic class on the uplink port of the access point. When BNG1 receives the report message, it can know the maximum usage bandwidth of the specific traffic category on the uplink port of the access node in advance and the currently used bandwidth of the specific traffic category on the uplink port of the access node, and know the The remaining bandwidth currently available for a specific traffic category, so that accurate access control or hierarchical scheduling can be performed when services of this specific traffic category arrive. Of course, the above report message may also include the current remaining bandwidth of the specific traffic category. No specific limitation is made here.

405.同理，接入节点向BNG2发送report消息。405. Similarly, the access node sends a report message to BNG2.

406.BNG2/BNG1接收上述report消息，并根据上行端口的剩余带宽对业务进行分层调度。如果发现上行端口出现了拥塞，则BNG2/BNG1可以拒绝一些现有的业务，以避免拥塞持续发生。406. BNG2/BNG1 receives the above report message, and performs hierarchical scheduling on services according to the remaining bandwidth of the uplink port. If it is found that the uplink port is congested, BNG2/BNG1 can reject some existing services to avoid continued congestion.

需要说明的是，如果某个BNG上的业务必须要保证传输，例如上述BNG2所提供的IPTV业务必须保证传输，则此时，可以不用向上述BNG2发送上述report消息，而是只向上述BNG1发送上述report消息，以触发BNG1在上行端口出现拥塞时，拒绝一些现有的业务，以避免拥塞持续发生。It should be noted that if the service on a certain BNG must be guaranteed to be transmitted, for example, the IPTV service provided by the above-mentioned BNG2 must be guaranteed to be transmitted, then at this time, the above-mentioned report message may not be sent to the above-mentioned BNG2, but only sent to the above-mentioned BNG1 The above report message is used to trigger BNG1 to reject some existing services when the uplink port is congested, so as to avoid continuous occurrence of congestion.

图4所示实施例中，由接入节点在上行端口的当前已使用带宽大于预设阈值时，向BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。当新业务到来时，BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，可以判断出所述接入线和/或接入节点上行端口的当前带宽是否满足所述新业务的带宽需求，如果满足所述新业务的带宽需求，则允许该新业务进行准入，否则进行其他处理。从而避免了现有技术中新业务准入后，由于接入线或者接入节点上行端口的当前带宽无法满足新业务的带宽需求而发生丢包，导致BNG与接入节点之间的传输带宽造成浪费的问题，本发明实施例可以提高下行传输带宽的有效利用率。In the embodiment shown in Figure 4, when the current used bandwidth of the uplink port is greater than the preset threshold, the access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to the BNG . When a new service arrives, the BNG can determine the current bandwidth usage information of the access line and/or the uplink port of the access node according to the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node. Whether the bandwidth meets the bandwidth requirement of the new service, if the bandwidth requirement of the new service is met, the new service is allowed to be admitted, otherwise other processing is performed. This avoids packet loss due to the fact that the current bandwidth of the access line or the uplink port of the access node cannot meet the bandwidth requirements of the new service after the new service is admitted in the prior art, resulting in a loss of transmission bandwidth between the BNG and the access node. For the problem of waste, the embodiment of the present invention can improve the effective utilization rate of the downlink transmission bandwidth.

如图5所示的实施例中，企业1独占接入线1，并通过接入线1接入接入节点，再由接入节点接入BNG1，企业2独占接入线2，并通过接入线2接入接入节点，再由接入节点接入BNG2。企业1和企业2共享接入节点上行端口传输带宽。下面详细介绍一种多宽带网络网关下业务调度方法，包括如下步骤：In the embodiment shown in Figure 5, enterprise 1 monopolizes access line 1, and accesses the access node through access line 1, and then the access node accesses BNG1; enterprise 2 monopolizes access line 2, and The incoming line 2 is connected to the access node, and then the access node is connected to BNG2. Enterprise 1 and enterprise 2 share the transmission bandwidth of the uplink port of the access node. The following describes in detail a service scheduling method under a multi-broadband network gateway, including the following steps:

501.接入节点检测上行端口的当前带宽的变化情况，如果检测到所述上行端口的当前已使用带宽大于预设阈值时，则向BNG1发送携带有所述接入节点上行端口的剩余带宽信息的report消息。501. The access node detects the change of the current bandwidth of the uplink port, and if it detects that the currently used bandwidth of the uplink port is greater than the preset threshold, then sends the remaining bandwidth information carrying the uplink port of the access node to BNG1 report message.

需要说明的是，由于企业1独占接入线1，并通过接入线1接入接入节点，再由接入节点接入BNG1的，亦即，该接入线1只用于传输BNG1到企业1之间的报文，因而，无需将接入线1或者接入线2的带宽使用信息发送给BNG1，BNG1可以获得接入线1的带宽使用信息。It should be noted that since enterprise 1 monopolizes the access line 1, accesses the access node through the access line 1, and then accesses the BNG1 through the access node, that is, the access line 1 is only used to transmit BNG1 to Therefore, BNG1 can obtain the bandwidth usage information of access line 1 without sending the bandwidth usage information of access line 1 or access line 2 to BNG1.

同样，由于企业2独占接入线2，并通过接入线2接入接入节点，再由接入节点接入BNG2的，亦即，该接入线2只用于传输BNG2到企业2之间的报文，因而，无需将接入线1或者接入线2的带宽使用信息发送给BNG2，BNG2可以获得接入线2的带宽使用信息。Similarly, because enterprise 2 monopolizes the access line 2, and accesses the access node through access line 2, and then accesses BNG2 through the access node, that is, the access line 2 is only used to transmit BNG2 to enterprise 2. Therefore, BNG2 can obtain the bandwidth usage information of access line 2 without sending the bandwidth usage information of access line 1 or access line 2 to BNG2.

502.同理，向BNG2发送携带有所述接入节点上行端口的剩余带宽信息的report消息。502. Similarly, send a report message carrying the remaining bandwidth information of the uplink port of the access node to BNG2.

503.当有新业务到达BNG1时，根据上行端口当前的剩余带宽，和该新业务所需要的带宽对上述新业务进行分层调度或者准入控制。503. When a new service arrives at the BNG1, perform hierarchical scheduling or admission control on the new service according to the current remaining bandwidth of the uplink port and the bandwidth required by the new service.

504.当另一个新业务到达BNG1时，向接入节点发送查询消息。504. When another new service arrives at BNG1, send a query message to the access node.

由于接入节点上行端口的带宽是在动态变化的，而接入节点主动上报上行端口的剩余带宽是根据预设阈值进行触发上报的，当接入节点主动向BNG1上报所述接入节点上行端口的剩余带宽后，上述接入节点上行端口的剩余带宽可能已经发生了变化，因而，此时BNG1在对新业务进行准入控制之前，实时查询上述接入节点上行端口的剩余带宽，提高BNG1对新业务进行准入控制的准确性。Since the bandwidth of the uplink port of the access node is dynamically changing, and the remaining bandwidth of the uplink port actively reported by the access node is triggered and reported according to a preset threshold, when the access node actively reports the uplink port of the access node to BNG1 After the remaining bandwidth of the access node, the remaining bandwidth of the uplink port of the access node may have changed. Therefore, before performing admission control on the new service, BNG1 inquires the remaining bandwidth of the uplink port of the above access node in real time to improve the Accuracy of admission control for new services.

505.接入节点接收到上述查询消息后，查询接入节点上行端口的当前剩余带宽；505. After receiving the above query message, the access node queries the current remaining bandwidth of the uplink port of the access node;

并按照ANCP协议向BNG1发送report消息，所述report消息包括所述查询到的接入节点上行端口的当前剩余带宽信息。And send a report message to BNG1 according to the ANCP protocol, where the report message includes the queried current remaining bandwidth information of the uplink port of the access node.

之后，BNG1根据上述report消息对上述新业务进行准入控制。Afterwards, BNG1 performs admission control on the above-mentioned new service according to the above-mentioned report message.

506、接入节点检测上行端口的当前剩余带宽；506. The access node detects the current remaining bandwidth of the uplink port;

507、接入节点在检测到上行端口的当前剩余带宽小于所述预设阈值时，说明此时接入节点上行端口不再有拥塞，此时也可以通过report消息向BNG1发送所述接入节点上行端口的剩余带宽信息。507. When the access node detects that the current remaining bandwidth of the uplink port is less than the preset threshold, it means that the uplink port of the access node is no longer congested at this time. At this time, the access node may also send the report message to BNG1 Remaining bandwidth information of the uplink port.

508、同理，此时接入节点也可以通过report消息向BNG2发送所述接入节点上行端口的剩余带宽信息。508. Similarly, at this time, the access node may also send the remaining bandwidth information of the uplink port of the access node to BNG2 through a report message.

如果BNG1接收到步骤505中的report消息后，拒绝上述新业务进行准入，此时当BNG1接收到步骤507中的report消息后，如果所述接入节点上行端口的剩余带宽可以满足上述新业务所需的带宽，则对上述新业务进行准入。If BNG1 receives the report message in step 505 and rejects the above-mentioned new service for admission, then when BNG1 receives the report message in step 507, if the remaining bandwidth of the uplink port of the access node can satisfy the above-mentioned new service If the required bandwidth is required, the above-mentioned new services are admitted.

图5所示实施例中，由接入节点在上行端口的当前已使用带宽大于预设阈值时，或者，在接收到查询消息时，向BNG发送上行端口的当前带宽使用信息。当新业务到来时，BNG根据所述上行端口的当前带宽使用信息，可以判断出所述上行端口的当前带宽是否满足所述新业务的带宽需求，如果满足所述新业务的带宽需求，则允许该新业务进行准入，否则进行其他处理。从而避免了现有技术中新业务准入后，由于上行端口的当前带宽无法满足新业务的带宽需求而发生丢包，导致BNG与接入节点之间的传输带宽造成浪费的问题，本发明实施例可以提高下行传输带宽的有效利用率。In the embodiment shown in FIG. 5 , when the currently used bandwidth of the uplink port is greater than a preset threshold, or when a query message is received, the access node sends the current bandwidth usage information of the uplink port to the BNG. When a new service arrives, the BNG can determine whether the current bandwidth of the uplink port meets the bandwidth requirement of the new service according to the current bandwidth usage information of the uplink port, and if it meets the bandwidth requirement of the new service, allow The new service is admitted, otherwise other processing is performed. Thereby avoiding the problem that the transmission bandwidth between the BNG and the access node is wasted due to the current bandwidth of the uplink port being unable to meet the bandwidth requirements of the new service after the new service access in the prior art is avoided. For example, the effective utilization rate of the downlink transmission bandwidth can be improved.

本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

图6所示的实施例中，提供一种通信装置，包括：获取单元10和发送单元11。In the embodiment shown in FIG. 6 , a communication device is provided, including: an acquiring unit 10 and a sending unit 11 .

所述获取单元10，用于获取接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息；所述发送单元11用于向至少一个宽带网络网关BNG发送所述获取单元10获取的接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，以触发所述至少一个BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息对业务进行调度或准入控制。The acquiring unit 10 is configured to acquire the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node; the sending unit 11 is configured to send the acquiring unit to at least one broadband network gateway BNG 10 The acquired current bandwidth usage information of the access line and/or the current bandwidth usage information of the access node uplink port, so as to trigger the at least one BNG to use the current bandwidth usage information of the access line and/or the access node uplink port The current bandwidth usage information of the port is used to schedule or admit services.

上述通信装置具体为接入节点，该接入节点向BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。当新业务到来时，BNG根据所述接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息，可以判断出所述接入线和/或接入节点上行端口的当前带宽是否满足所述新业务的带宽需求，如果满足所述新业务的带宽需求，则允许该新业务进行准入，否则进行其他处理。从而避免了现有技术中新业务准入后，由于接入线或者接入节点上行端口的当前带宽无法满足新业务的带宽需求而发生丢包，导致BNG与接入节点之间的传输带宽造成浪费的问题，本发明实施例可以提高下行传输带宽的有效利用率。The communication device above is specifically an access node, and the access node sends the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node to the BNG. When a new service arrives, the BNG can determine the current bandwidth usage information of the access line and/or the uplink port of the access node according to the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node. Whether the bandwidth meets the bandwidth requirement of the new service, if the bandwidth requirement of the new service is met, the new service is allowed to be admitted, otherwise other processing is performed. This avoids packet loss due to the fact that the current bandwidth of the access line or the uplink port of the access node cannot meet the bandwidth requirements of the new service after the new service is admitted in the prior art, resulting in a loss of transmission bandwidth between the BNG and the access node. For the problem of waste, the embodiment of the present invention can improve the effective utilization rate of the downlink transmission bandwidth.

需要说明的是，所述接入线的当前带宽使用信息包括以下任一种信息：所述接入线中特定流量类别的当前已使用带宽、所述接入线中特定流量类别的当前剩余带宽、所述接入线的当前已使用带宽或者所述接入线的当前剩余带宽；It should be noted that the current bandwidth usage information of the access line includes any of the following information: the currently used bandwidth of a specific traffic category in the access line, the current remaining bandwidth of a specific traffic category in the access line . The currently used bandwidth of the access line or the current remaining bandwidth of the access line;

所述接入节点上行端口的当前带宽使用信息包括以下任一种信息：所述接入节点上行端口中特定流量类别的当前已使用带宽、所述接入节点上行端口中特定流量类别的当前剩余带宽、所述接入节点上行端口的当前已使用带宽或者所述接入节点上行端口的当前剩余带宽。The current bandwidth usage information of the uplink port of the access node includes any of the following information: the currently used bandwidth of a specific traffic category in the uplink port of the access node, the current remaining bandwidth of a specific traffic category in the uplink port of the access node Bandwidth, the currently used bandwidth of the uplink port of the access node, or the current remaining bandwidth of the uplink port of the access node.

所述发送单元11具体用于按照接入节点控制协议ANCP协议向至少一个BNG发送report消息，所述report消息中包括接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。The sending unit 11 is specifically configured to send a report message to at least one BNG according to the access node control protocol ANCP protocol, and the report message includes the current bandwidth usage information of the access line and/or the current bandwidth usage of the uplink port of the access node information.

可选的，所述发送单元11具体用于在检测到接入节点进行组播报文复制后，向至少一个BNG发送接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。具体可以参见上述图2中所述接入节点相关描述。Optionally, the sending unit 11 is specifically configured to send the current bandwidth usage information of the access line and/or the current bandwidth of the uplink port of the access node to at least one BNG after detecting that the access node performs multicast message replication usage information. For details, refer to the related description of the access node in FIG. 2 above.

可选的，如图7所示，上述通信装置还包括：查询单元12，用于在接收到至少一个BNG发送的查询消息时，查询接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息；Optionally, as shown in FIG. 7, the above-mentioned communication device further includes: a query unit 12, configured to query the current bandwidth usage information of the access line and/or access node uplink information when receiving a query message sent by at least one BNG. The current bandwidth usage information of the port;

此时，所述发送单元11具体用于向至少一个BNG发送所述查询单元12查询到的接入线的当前带宽使用信息和/或接入节点上行端口的当前带宽使用信息。具体可以参见上述图3中所述接入节点的相关描述。At this time, the sending unit 11 is specifically configured to send the current bandwidth usage information of the access line and/or the current bandwidth usage information of the uplink port of the access node queried by the query unit 12 to at least one BNG. For details, refer to the relevant description of the access node in FIG. 3 above.

可选的，所述发送单元11具体用于在接入节点上行端口的当前已使用带宽大于预设阈值时，向至少一个BNG发送接入节点上行端口的当前带宽使用信息。具体可以参见上述图4中所述接入节点的相关描述。Optionally, the sending unit 11 is specifically configured to send the current bandwidth usage information of the uplink port of the access node to at least one BNG when the currently used bandwidth of the uplink port of the access node is greater than a preset threshold. For details, refer to the relevant description of the access node in FIG. 4 above.

具体地，该预设阈值可以预先配置在接入节点上，由所述发送单元11比较接入节点上行端口的当前已使用带宽是否大于预设阈值，并在接入节点上行端口的当前已使用带宽大于预设阈值时，向至少一个BNG发送接入节点上行端口的当前带宽使用信息。Specifically, the preset threshold can be pre-configured on the access node, and the sending unit 11 compares whether the currently used bandwidth of the uplink port of the access node is greater than the preset threshold, and checks whether the currently used bandwidth of the uplink port of the access node When the bandwidth is greater than the preset threshold, the current bandwidth usage information of the uplink port of the access node is sent to at least one BNG.

当然，也可以在接入节点上新增一个比较单元，该比较单元用于比较接入节点上行端口的当前已使用带宽是否大于预设阈值。并在所述比较单元比较出接入节点上行端口的当前已使用带宽大于预设阈值时，触发所述发送单元向至少一个BNG发送接入节点上行端口的当前带宽使用信息。在此不作限制。Of course, a comparison unit may also be added on the access node, and the comparison unit is used to compare whether the currently used bandwidth of the uplink port of the access node is greater than a preset threshold. And when the comparison unit compares that the currently used bandwidth of the uplink port of the access node is greater than a preset threshold, the sending unit is triggered to send the current bandwidth usage information of the uplink port of the access node to at least one BNG. No limitation is imposed here.

需要说明的是：该装置实施例中的获取单元10、发送单元11和查询单元12，均为硬件。It should be noted that: the obtaining unit 10, the sending unit 11 and the querying unit 12 in this device embodiment are all hardware.

本发明实施例主要应用于多BNG网络架构下，对业务进行分层调度或准入处理的过程中，可以提高下行传输带宽的有效利用率。The embodiment of the present invention is mainly applied in the multi-BNG network architecture, and can improve the effective utilization rate of downlink transmission bandwidth in the process of hierarchical scheduling or admission processing for services.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. a business scheduling method under wideband network gateway more than, is characterized in that, be applied to the network architecture of multiple wideband network gateway BNG, described method comprises:

The current bandwidth obtaining tie-in line uses the current bandwidth of information and access node uplink port to use information;

The current bandwidth sending described tie-in line to multiple BNG uses the current bandwidth of information and access node uplink port to use information, uses the current bandwidth of information and access node uplink port to use information to dispatch or access control business to trigger described multiple BNG according to the current bandwidth of described tie-in line;

The described current bandwidth to multiple BNG transmission tie-in line uses the current bandwidth of information and access node uplink port to use information to comprise:

Row port on access nodes current is when utilized bandwidth is greater than predetermined threshold value, and the current bandwidth sending access node uplink port to multiple BNG uses information.

2. business scheduling method under many wideband network gateways according to claim 1, is characterized in that, the described current bandwidth to multiple BNG transmission tie-in line uses the current bandwidth of information and access node uplink port to use information also to comprise:

Send report message according to Access Node Control Protocol ANCP agreement to multiple BNG, the current bandwidth that described report message comprises tie-in line uses the current bandwidth of information and access node uplink port to use information.

3. business scheduling method under many wideband network gateways according to claim 1 and 2, is characterized in that, the described current bandwidth to multiple BNG transmission tie-in line uses the current bandwidth of information and access node uplink port to use information also to comprise:

Carry out after multicast message copies at access node, the current bandwidth sending tie-in line to multiple BNG uses the current bandwidth of information and access node uplink port to use information.

4. business scheduling method under many wideband network gateways according to claim 1 and 2, is characterized in that, also comprise:

When receiving the query messages that multiple BNG sends, the current bandwidth of inquiry tie-in line uses the current bandwidth of information and access node uplink port to use information;

The described current bandwidth to multiple BNG transmission tie-in line uses the current bandwidth of information and access node uplink port to use information also to comprise:

The current bandwidth of the tie-in line inquired described in sending to multiple BNG uses the current bandwidth of information and access node uplink port to use information.

5. business scheduling method under many wideband network gateways according to claim 1 and 2, it is characterized in that, the current bandwidth of described tie-in line uses information to comprise any one information following: the current residual bandwidth of the current residual bandwidth of particular flow rate classification, the current utilized bandwidth of described tie-in line or described tie-in line in the current utilized bandwidth of particular flow rate classification, described tie-in line in described tie-in line;

The current bandwidth of described access node uplink port uses information to comprise any one information following: the current residual bandwidth of the current residual bandwidth of particular flow rate classification, the current utilized bandwidth of described access node uplink port or described access node uplink port in the current utilized bandwidth of particular flow rate classification, described access node uplink port in described access node uplink port.

6. a communicator, is characterized in that, be applied to multiple wideband network gateway BNG network architecture, described communicator comprises:

Acquiring unit, the current bandwidth for obtaining tie-in line uses the current bandwidth of information and access node uplink port to use information;

Transmitting element, current bandwidth for sending from the tie-in line that described acquiring unit obtains to multiple BNG uses the current bandwidth of information and access node uplink port to use information, uses the current bandwidth of information and access node uplink port to use information to dispatch or access control business to trigger described multiple BNG according to the current bandwidth of described tie-in line;

Described transmitting element is when specifically for row port on access nodes current, utilized bandwidth is greater than predetermined threshold value, and the current bandwidth sending access node uplink port to multiple BNG uses information.

7. communicator according to claim 6, it is characterized in that, described transmitting element is concrete also for sending report message according to Access Node Control Protocol ANCP agreement to multiple BNG, and the current bandwidth that described report message comprises tie-in line uses the current bandwidth of information and access node uplink port to use information.

8. the communicator according to claim 6 or 7, it is characterized in that, described transmitting element is concrete also for detecting that access node carries out after multicast message copies, and the current bandwidth sending tie-in line to multiple BNG uses the current bandwidth of information and access node uplink port to use information.

9. the communicator according to claim 6 or 7, is characterized in that, also comprises:

Query unit, for when receiving the query messages that multiple BNG sends, the current bandwidth of inquiry tie-in line uses the current bandwidth of information and access node uplink port to use information;

The concrete current bandwidth also for sending the tie-in line that described query unit inquires to multiple BNG of described transmitting element uses the current bandwidth of information and access node uplink port to use information.

10. the communicator according to claim 6 or 7, it is characterized in that, the current bandwidth of described tie-in line uses information to comprise any one information following: the current residual bandwidth of the current residual bandwidth of particular flow rate classification, the current utilized bandwidth of described tie-in line or described tie-in line in the current utilized bandwidth of particular flow rate classification, described tie-in line in described tie-in line;

The current bandwidth of described access node uplink port uses information to comprise any one information following: the current residual bandwidth of the current residual bandwidth of particular flow rate classification, the current utilized bandwidth of described access node uplink port or described access node uplink port in the current utilized bandwidth of particular flow rate classification, described access node uplink port in described access node uplink port.