Summary of the invention
The embodiment of the present disclosure is designed to provide a kind of message forwarding method, interchanger and computer-readable storage mediumMatter when solving the locally aggregated port whole failure of DR equipment in DR system, causes message in DR system to forward switch speedSlowly, the problem of being easy packet loss.
To achieve the goals above, the embodiment of the present disclosure the technical solution adopted is as follows:
In a first aspect, the embodiment of the present disclosure proposes a kind of message forwarding method, it is applied to first network equipment, described firstThe network equipment includes the internal control Port IP P being connect with second network equipment by internal control link IPL, and with it is describedSecond network equipment forms the distributed aggregation port of distributed paradigmatic system, which comprises
Receive the message to be forwarded for carrying destination network device internet protocol address；
When the distributed aggregation port of the first network equipment breaks down, by the way that the distributed aggregation port is addedThe IPL corresponding to IPP gives the message transmissions to be forwarded to second network equipment, is pressed by second network equipmentMessage to be forwarded is sent to destination network device according to the corresponding forwarding-table item of the message to be forwarded.
As described above, the method for determining that the distributed aggregation port of the first network equipment breaks down includes:
The working condition that each port in the distributed aggregation port is detected according to preset protocol, when each endWhen mouth reports DOWN, it is determined that the distributed aggregation port of the first network equipment breaks down.
As described above, the method is also wrapped after the distributed aggregation port failure of the first network equipmentIt includes:
When any port working state is UP by DOWN report, the distributed aggregation port of the first network equipment is extensiveMultiple normal, message to be forwarded is sent to destination network device by the port by being restored to distributed aggregation port.
As described above, during the distributed aggregation port of the first network equipment breaks down or restores normal,Message to be forwarded can be sent to the corresponding destination network device of the forwarding-table item according to the forwarding-table item learnt.
As described above, the IPL corresponding to the IPP by the way that the distributed aggregation port is added is by the report to be forwardedText was transferred to before the step of second network equipment, the method also includes:
Increase the field containing effective port mark on second network equipment in the message to be forwarded, when describedWhen second network equipment receives the message to be forwarded, corresponding effective port is found by the mark.
Second aspect, the embodiment of the present disclosure also propose a kind of interchanger, comprising: first network equipment,
The first network equipment includes the internal control end being connect with second network equipment by internal control link IPLMouth IPP, and the distributed aggregation port with the distributed paradigmatic system of second network equipment composition, the first network equipmentFurther include: receiving module and processing module；
The receiving module is for receiving the message to be forwarded for carrying destination network device internet ip protocol address；
The processing module is used for when the distributed aggregation port of the first network equipment breaks down, and target network is setThe IPL corresponding to the standby IPP by the way that the distributed aggregation port is added is by the message transmissions to be forwarded to described secondMessage to be forwarded is sent to by second network equipment according to the corresponding forwarding-table item of the message to be forwarded by the network equipmentDestination network device.
It is wrapped as described above, the processing module is used to determine that the distributed aggregation port of the first network equipment to break downIt includes:
The processing module is used to detect the work shape of each port in the distributed aggregation port according to preset protocolState, when DOWN is reported in each described port, it is determined that the distributed aggregation port failure mesh of the first network equipmentMark the network equipment.
As described above, after the distributed aggregation port failure of the first network equipment, the processing moduleIt is also used to when any port working state is UP by DOWN report, the distributed aggregation port of the first network equipment restoresNormally, message to be forwarded is sent to destination network device by being restored to the port of distributed aggregation port.
As described above, during the distributed aggregation port of the first network equipment breaks down or restores normal,Message to be forwarded can be sent to the corresponding destination network device of the forwarding-table item according to the forwarding-table item learnt.
As described above, further include message editing module, the institute corresponding to the IPP by the way that the distributed aggregation port is addedState IPL by the message transmissions to be forwarded to second network equipment the step of before, the message editing module is used forIncrease the field containing effective port mark on second network equipment in the message to be forwarded, when second network is setFor when receiving the message to be forwarded, corresponding effective port is found by the mark.
The third aspect, the embodiment of the present disclosure also propose a kind of computer readable storage medium, are stored thereon with computer journeySequence when the computer program is read out by the processor and runs, realizes method described in any one of above-mentioned first aspect.
Compared with the prior art, the embodiment of the present disclosure has the advantages that
In the present embodiment, when the distributed aggregation port of the first network equipment breaks down, by first netThe distributed aggregation port is added in the IPP of network equipment, retains corresponding turn of Internet protocol address of the destination network deviceForwarding list item does not need to receive message again, relearns the corresponding forwarding-table item of Internet protocol address of destination network device,So that the case where greatly improving the switch speed of DR system message forwarding, decreasing packet loss, and work as first netWhen the distributed aggregation port failure vanishes of network equipment, corresponding turn of Internet protocol address of the destination network device is not updatedForwarding list item deletes the IPP of the first network equipment from the distributed aggregation port, the port of recovery is added distributed poly-Heal up, so as to quickly from IPP detour message introduce restore distributed aggregation port, thus avoid flow for a long time aroundRow improves forward efficiency.
Other feature and advantage of the disclosure will be illustrated in subsequent specification, also, partly be become from specificationIt is clear that by implementing embodiment of the present disclosure understanding.The purpose of the disclosure and other advantages can be by written theorysSpecifically noted structure is achieved and obtained in bright book, claims and attached drawing.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out clear, completeGround description, it is clear that described embodiment is only disclosure a part of the embodiment, instead of all the embodiments.Usually existThe component of the embodiment of the present disclosure described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.CauseThis, is not intended to limit the model of the claimed disclosure to the detailed description of the embodiment of the present disclosure provided in the accompanying drawings belowIt encloses, but is merely representative of the selected embodiment of the disclosure.Based on embodiment of the disclosure, those skilled in the art are not being madeEvery other embodiment obtained under the premise of creative work belongs to the range of disclosure protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang YiIt is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile in the disclosureIn description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
The following each embodiments of the disclosure can be applied in interactive environment as shown in Figure 1, as shown in Figure 1, in DRNI,By more between distributed relay DR equipment A (hereinafter referred to as DR equipment A) and distributed relay DR equipment B (abbreviation DR equipment B)Ethernet link, which bundles, is formed by an Ethernet logical links (Bridge Aggregation Group, letterClaim: BAGG) connection.Each DR equipment includes that (Distributed Relay interface, DR connect distributed aggregation portMouthful) and internal control link port (Intra-Portal Port, IPP), divide when needing to constitute between DR equipment A and DR equipment BWhen cloth polymerize (Distributed-Relay System, DR) system, at this point, DR system external is rendered as a forwardedEquipment, DR internal system DR equipment A and DR equipment B form load balancing, and DR equipment A and DR equipment B passes through equipment A respectively and setsThe interface of DR interface and target device on standby B is formed by BAGG1 and BAGG2 and carries out message forwarding jointly, DR equipment A'sBetween the port IPP and the port IPP of DR equipment B BAGG3 link as internal control link (Intra-Portal Link,IPL), for transmitting DRNI protocol massages, while DR equipment A and DR equipment B can be mutually synchronized MAC address entries and ARP message, so thatBoth ends MAC address entries are consistent with ARP entry.It should be noted that the DR interface in same equipment is by equipment A or equipment BOne or more port composition, the port can be two layers or three layers of polymer interfaces, the end on DR equipment A and DR equipment BWhen mouth connects the identical port on the same destination network device, then it is assumed that the port on DR equipment A and DR equipment B is added one pointCloth aggregation group, while also creating corresponding distributed aggregation port i.e. DR mouthful, DR number of devices in same DR system and oftenThe quantity for the DR mouth that can be configured in platform DR equipment and without limitation.
Referring to fig. 2, in the prior art, in DRNI, DR equipment A and DR equipment B adjacent each other DR equipment, equipment C isDestination network device, if certain DR interface fault, i.e., the distributed aggregation port communicated with outer net side is faulty, at this point, from outerThe flow of net side can be sent to an other DR equipment by internal control link (Intra-Portal Link, referred to as: IPL),All flows are by an other DR device forwards, and detailed process is as follows:
(1) certain DR interface fault of DR equipment A, outer net side do not perceive, and flow can still be sent to all DR equipment.
(2) the identical DR interface of DR equipment B is normal, then after DR equipment A receives the flow of outer net side access equipment C, passes throughIPL is transmitted to equipment C after giving flow to DR equipment A.
(3) after fault recovery, the DR interface up of DR equipment A, flow is normally forwarded.
It is above-mentioned it is found that in the prior art if when the local distributed aggregation port of DR equipment B breaks down, distribution polymerizationThe forwarding-table item that mouth learnt all is deleted, and needs internal control port (Intra-Portal Port, the letter of DR equipment BClaim: IPP) again complete forwarding-table item study, can just continue to complete the forwarding of message, cause in this way DR system message forwardSwitching time it is long, also be easy packet loss, be unable to satisfy the convergent requirement of certain clients.
When the distributed aggregation port of DR equipment all breaks down, in order to promote the switching speed of DR system message forwardingDegree, present embodiments provides a kind of message forwarding method, in embodiments of the present invention, for convenience of explanation, to include the first netIt is described for network equipment and the DR system of second network equipment.It should be noted that first network equipment and the second networkCan be between equipment it is opposite, for example, then DR equipment B is then when the DR equipment A in Fig. 1 is as first network equipmentTwo network equipments；When the DR equipment B in Fig. 1 is as first network equipment, then DR equipment A is then second network equipment.
Referring to fig. 4, the first network equipment includes in being connect with second network equipment by internal control link IPLPortion control port IPP200, and the distributed aggregation port 100 with the distributed paradigmatic system of second network equipment composition, shouldMethod the following steps are included:
S101, reception carry the message to be forwarded of destination network device internet protocol address.
Specifically, when the message to be forwarded that outside net is sent, which can be using broadcast or unknown unicast or unknown groupIt broadcasts (Broadcast/Unknownunicast/Unknown Multicast, BUM) form and gives DR equipment A and DR equipment B, at thisIn embodiment, DR equipment A can be received by distributed aggregation port 100 and be carried destination network device internet protocol addressMessage to be forwarded, and corresponding forwarding-table item is learnt according to the IP address of destination network device, which has media interviewsControl (Media Access Control, referred to as: MAC) list item, address resolution protocol (Address ResolutionProtocol, referred to as: ARP) list item, destination network device is specifically obtained by ARP according to the IP address of destination network deviceMAC Address.
S102, when the distributed aggregation port of the first network equipment breaks down, it is described distributed poly- by being addedThe IPL corresponding to the IPP to heal up gives the message transmissions to be forwarded to second network equipment, by second networkMessage to be forwarded is sent to destination network device according to the corresponding forwarding-table item of the message to be forwarded by equipment.
Specifically, in the normal working mechanism of DRNI, after DR system starts, meeting between DR equipment A and DR equipment BReal-time synchronization information, such as: it can be synchronous MAC address entries and ARP entry etc., when the distributed aggregation port of the DR equipment A goes outWhen existing failure, i.e. when port in DR equipment A in the distributed aggregation port of composition is broken down, first net can be enabled immediatelyMessage to be forwarded is given the IPP of second network equipment by IPP in network equipment by IPL link transmission, message to be forwarded from IPLIt is introduced into DR equipment B, by the way that distributed aggregation port is added in the IPP of first network equipment, to set when the first networkWhen standby distributed aggregation port breaks down, it is corresponding to retain the destination network device IP address that DR equipment A and DR equipment B learntMAC address entries and ARP entry, still message to be forwarded can be issued into destination network device, so that any one networkEquipment fault all will not influence the forwarding of flow, and destination network device does not also perceive, and guarantee that normal business will not interrupt.
In the present embodiment, when the distributed aggregation port of the first network equipment breaks down, by by the first netDistributed aggregation port is added in the IPP of network equipment, remains the destination network device IP address that DR equipment A and DR equipment B learntCorresponding MAC address entries and ARP entry do not need to receive message again, with relearning the Internet protocol of destination network deviceThe corresponding forwarding-table item in location decreases the feelings of packet loss so that greatly improving the switch speed of DR system message forwardingCondition.
Further, determine the first network equipment distributed aggregation port break down method include:
The working condition that each port in the distributed aggregation port is detected according to preset protocol, when each endWhen mouth reports DOWN, it is determined that the distributed aggregation port of the first network equipment breaks down.
In the present embodiment, in the normal working mechanism of DRNI, after DR system starts, DR equipment A and DR equipment BIt will do it identical system configuration, and determine the master slave mode of equipment A and equipment B, wherein DR equipment A and DR equipment B passes throughThe state of Keepalive message protocol detection neighbours is sent to Keepalive isl cycle, i.e. detection DR equipment A and DR is setFor the working condition of each port in aggregation port distributed in B, only when whole ends in the distributed aggregation port of DR equipment AMouth is when running the operating status of abnormal DOWN, it is determined that the distributed aggregation port failure of DR equipment A, but at this point, such asHaving port in the distributed aggregation port of fruit DR equipment B is the state of normal operation UP, then DR system then can be to destination network deviceIt is always maintained at the state of normal operation UP, accordingly even when the distributed aggregation port of DR equipment A breaks down, but on DR equipment BThere is available distributed aggregation port, so appearing to be UP global for destination network device, in such DR equipment A originallyThe MAC table and ARP table of the local distributed aggregation port learnt would not be also deleted, two layers, three layers of the network equipmentIt is forwarded with the forwarding-table item for inquiring original.
Further, after the distributed aggregation port failure of the first network equipment, the method is also wrappedIt includes:
When any port working state is UP by DOWN report, the distributed aggregation port of the first network equipment is extensiveMultiple normal, message to be forwarded is sent to destination network device by the port by being restored to distributed aggregation port.
Specifically, DR equipment A and DR equipment B sends Keepalive message protocol by Keepalive isl cycleThe state of neighbours is detected, that is, detects the working condition of each port in distributed aggregation port in DR equipment A and DR equipment B, whenThe working condition of the either port in the distributed aggregation port of DR equipment A is reported to become normal operation UP from running abnormal DOWNWhen, it is determined that the distributed aggregation port of DR equipment A can restore normally, at this point, DR equipment A distribution aggregation port can be againWhen work, restore the normal working mechanism of DR system, then leads back the message for the IPL that needs to detour before again local distributed poly-It heals up, is transmitted to destination network device to realize from DR equipment A.
It is extensive in first time hair existing port when multiple ports in the distributed aggregation port on DR equipment A need to restoreWhen multiple, IPP will be exited to distributed aggregation port, distributed aggregation port is added in the port for restoring normal operating condition, in this wayMAC address entries and ARP entry are that message to be forwarded is forwarded to target by distributed aggregation port always there is no being refreshed againThe network equipment, so flow can immediately enter DR equipment A and locally forward, detour the time forwarded to reduce flow,Improve forward efficiency.
Optionally, it in above-mentioned steps, breaks down or restores just in the distributed aggregation port of the first network equipmentIn normal process, message to be forwarded can be sent to the corresponding target network of the forwarding-table item according to the forwarding-table item learntNetwork equipment.
No matter specifically, the distributed aggregation port in DR equipment A or DR equipment B breaks down or restores normalIn the process, if the connection operating status of the port of the port and destination network device that are distributed in formula aggregation port be it is normal,Then message to be forwarded can be sent to the corresponding destination network device of the forwarding-table item according to the forwarding-table item learnt, noThe operation that can be deleted forwarding-table item, be updated detours the time forwarded to reduce flow, improves forward efficiency.
In addition, in the present embodiment, when multiple ports in aggregation port distributed in DR equipment A are broken down simultaneously,IPP member will be added to the distribution aggregation port, therefore, the flow ingredient gone out from IPP is more complex, existing IPP's itselfIt E-Packets, and is distributed multiple ports in formula aggregation port and is introduced through the message come, do not needed in the present embodiment to these messagesIncrease special field to be distinguish, after these flows enter opposite end DR equipment B, the IPP mouth being still considered in DR equipment B is connectIt receives, rather than which port is received in distributed aggregation port in DR equipment A, directly searches common forwarding table and is forwarded, do not need to be concerned about be which port is introduced through the message come in which distributed aggregation port.
In the present embodiment, the behavior for receiving message for IPP mouthfuls is not make any changes, and it is simple that comparison is achievedIt is single.
Further, the IPL corresponding to the IPP by the way that the distributed aggregation port is added is by the report to be forwardedText was transferred to before the step of second network equipment, the method also includes:
Increase the field containing effective port mark on second network equipment in the message to be forwarded, when describedWhen second network equipment receives the message to be forwarded, corresponding effective port is found by the mark.
Specifically, DR equipment A by the IPL by the message transmissions to be forwarded to DR equipment B the step of before, canTo increase classification TAG label in the message to be forwarded, effective port mark in distributed aggregation port is contained in DR equipment B in the insideField, such as the ID of effective port, so that message, which has arrived on the DR equipment B of opposite end, can directly find distribution by the ID of portThe message to be forwarded is forwarded by the port in formula aggregation port after then peeling increased TAG off, can not have to rely on so generalLogical forwarding-table item.
Further, in the present embodiment, cannot occur the addition in first network equipment in distributed aggregation port simultaneouslyThe port of distributed aggregation group and IPP, are only capable of alternative.
In the present embodiment, when the distributed aggregation port of the first network equipment breaks down, by first netThe distributed aggregation port is added in the IPP of network equipment, retains corresponding turn of Internet protocol address of the destination network deviceForwarding list item does not need to receive message again, relearns the corresponding forwarding-table item of Internet protocol address of destination network device,So that the case where greatly improving the switch speed of DR system message forwarding, decreasing packet loss, and work as first netWhen the distributed aggregation port failure vanishes of network equipment, corresponding turn of Internet protocol address of the destination network device is not updatedForwarding list item deletes the IPP of the first network equipment from the distributed aggregation port, the port of recovery is added distributed poly-Heal up, so as to quickly from IPP detour message introduce restore distributed aggregation port, thus avoid flow for a long time aroundRow improves forward efficiency.
It referring to figure 3., is the functional block diagram of first network equipment provided by the embodiment of the present disclosure.It needs to illustrate, first network equipment provided by the present embodiment, the technical effect of basic principle and generation and aforementioned corresponding methodEmbodiment is identical, to briefly describe, does not refer to part in the present embodiment, can refer to the corresponding contents in embodiment of the method.ThisOne network equipment can be the network equipments such as computer, notebook, server, router, be mainly used for promotion DR system reportThe switch speed of text forwarding.In the present embodiment, by taking interchanger as an example, which includes that (referred to as: DR is set first network equipmentStandby A) and second network equipment (referred to as: DR equipment B), the first network equipment A includes passing through inside with second network equipmentThe internal control Port IP P200 of link IPL connection is controlled, and is formed with second network equipment (referred to as: DR equipment B)The distributed aggregation port 100 of distributed paradigmatic system, the first network equipment further include receiving module 10 and processing module 20；
The receiving module 10 is for receiving the message to be forwarded for carrying destination network device internet ip protocol address；
The processing module 20 is used for when the distributed aggregation port of the first network equipment breaks down, target networkEquipment by be added the IPL corresponding to the IPP of the distributed aggregation port will the message transmissions to be forwarded to described theTwo network equipments are sent message to be forwarded according to the corresponding forwarding-table item of the message to be forwarded by second network equipmentTo destination network device.
It is appreciated that first network equipment A can execute above-mentioned steps S101, step S102.
Further, the processing module 20 is used to determine that the distributed aggregation port of the first network equipment to break downInclude:
The processing module 20 is used to detect the work of each port in the distributed aggregation port according to preset protocolState, when DOWN is reported in each described port, it is determined that the distributed aggregation port of the first network equipment breaks downDestination network device.
It is appreciated that first network equipment A can execute above content.
Further, when the first network equipment distributed aggregation port failure after, the processing module20 are also used to when any port working state is UP by DOWN report, and the distributed aggregation port of the first network equipment is extensiveMultiple normal, message to be forwarded is sent to destination network device by the port by being restored to distributed aggregation port.
It is appreciated that first network equipment A can execute above content.
Optionally, during the distributed aggregation port of the first network equipment breaks down or restores normal,Message to be forwarded can be sent to the corresponding destination network device of the forwarding-table item according to the forwarding-table item learnt.
It is appreciated that first network equipment A can execute above content.
Further, which further includes message editing module 30, in the IPP by the way that the distributed aggregation port is addedBefore the step of corresponding IPL gives the message transmissions to be forwarded to second network equipment, the message editingModule 30 works as institute for increasing the field containing effective port mark on second network equipment in the message to be forwardedWhen stating second network equipment and receiving the message to be forwarded, corresponding effective port is found by the mark.
It is appreciated that first network equipment A can execute above content.
The embodiment of the present disclosure provides a kind of computer readable storage medium, is stored thereon with computer program, the calculatingWhen machine program is read out by the processor and runs, corresponding step in above method embodiment is realized.
Therefore, interchanger and computer readable storage medium provided by the disclosure can be set when the first networkWhen standby distributed aggregation port breaks down, the distributed aggregation port is added in the IPP of the first network equipment, retains instituteThe corresponding forwarding-table item of Internet protocol address for stating destination network device, does not need to receive message again, relearns targetThe corresponding forwarding-table item of the Internet protocol address of the network equipment, so that greatly improving the switching of DR system message forwardingSpeed, the case where decreasing packet loss, and when the distributed aggregation port failure vanishes of the first network equipment, institute is not updatedThe corresponding forwarding-table item of Internet protocol address for stating destination network device deletes described first from the distributed aggregation portDistributed aggregation port is added in the port of recovery by the IPP of the network equipment, and the message so as to quickly detour from IPP introduces extensiveMultiple distributed aggregation port improves forward efficiency so that flow be avoided to detour for a long time.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to oneA entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation itBetween there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended toCover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes thoseElement, but also including other elements that are not explicitly listed, or further include for this process, method, article or settingStandby intrinsic element.In the absence of more restrictions, the element limited by sentence " including one ", it is not excluded that wrappingInclude in the process, method, article or equipment of the element that there is also other identical elements.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this fieldFor art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, it is made any to repairChange, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.It should also be noted that similar label and letter existSimilar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawingIt is further defined and explained.