CN105721181A

CN105721181A - Method of message transmission, backbone switch and access switch

Info

Publication number: CN105721181A
Application number: CN201410724219.6A
Authority: CN
Inventors: 孙亚军; 张颜; 朱新义
Original assignee: Huawei Digital Technologies Suzhou Co Ltd
Current assignee: Huawei Digital Technologies Suzhou Co Ltd
Priority date: 2014-12-03
Filing date: 2014-12-03
Publication date: 2016-06-29
Anticipated expiration: 2034-12-03
Also published as: WO2016086693A1; CN105721181B

Abstract

The invention provides a method of message transmission, a backbone switch and an access switch. The method comprises that when a communication link between a first backbone switch and a second backbone switch fails, the first backbone switch transmits a notification message to a first access switch, and the notification message is used for indicating the first access switch to divide a first V-shaped communication link in the same trunk among the first backbone switch, the second backbone switch and the first access switch into a second communication link and a third communication link in two trunks; the first backbone switch receives a response message transmitted by the first access switch; and the first backbone switch transmits a packet to the first access switch through the second communication link, so that the first access switch can transmit the packet to the second backbone switch through the third communication link. The embodiment of the invention can maintain the normal operation and non-splitting of an SVF system when the peer-link fails, thereby maintaining the same bandwidth of the SVF system.

Description

The method of message transmissions, backbone switch and access switch

Technical field

The present invention relates to the communications field, particularly relate to a kind of method of message transmissions, backbone switch and access switch.

Background technology

Super virtual switching network is (English: SuperVirtualFabric, it is called for short: SVF) system, refer to that the different types of equipment of multiple stage sets up into a logical system by mixed heap agreement etc., wherein remote device only forwards, key (English: spine) switch not only forwards but also do the control whole SVF system of management.The typical scene of SVF system adopts up dual homed to access as shown in Figure 1, access switch (is referred to as leaf switch) in SVF system, and dual-active is linked into backbone switch, backbone switch is linked into core layer switch, and up-downgoing flow is (English: through Hash (English: hash) select a port to forward in trunk) at trunking.

In SVF system, peer-link is the communication link of the management passage between carrying backbone switch and service channel, if peer-link breaks down, two the backbone switch divisions then connected by described peer-link become two independent double, two main systems, in order to solve double, two major error, double, two main detection protocol are (English: Dual-ActiveDetector, it is called for short: DAD) all of the port on wherein backbone switch can be closed, this backbone switch will be completely unavailable, up-downgoing flow will all be switched on another backbone switch, the bandwidth causing described SVF system reduces by half.

Summary of the invention

The invention provides a kind of method of message transmissions, backbone switch and access switch, when communication link between two backbone switch in SVF system breaks down, can keep that described SVF system is properly functioning not to be divided such that it is able to the bandwidth of described SVF system is remained unchanged.

First aspect, a kind of method providing message transmissions, described method includes: when the first communication link between the first backbone switch and the second backbone switch breaks down, described first backbone switch sends the first notification message to the first access switch, described first notification message is used for indicating described first access switch by described first backbone switch, the the first V-type communication link converged in trunk at same port between described second backbone switch and described first access switch splits into the second communication link in two different trunk and third communication link, described second communication link is between described first backbone switch and described first access switch, described third communication link is between described second backbone switch and described first access switch；Described first backbone switch sends the first message according to described first response message by the first access switch described in described second communication chain road direction, the destination of described first message is described second backbone switch, in order to described first message is forwarded to described second backbone switch by described third communication link by described first access switch.

In conjunction with first aspect, in the implementation that the first is possible, before described first backbone switch sends described first message to described first access switch, described method also includes: the port that goes out of described first backbone switch to described second backbone switch is arranged on described second communication link by described first backbone switch.

In conjunction with first aspect or implementation that the first is possible, in the implementation that the second is possible, before the first backbone switch sends described first message to described first access switch, when described first backbone switch to described first access switch go out port be in port isolation state time, described method also includes: described first backbone switch releases described first backbone switch to the port isolation going out port of described first access switch.

In conjunction with the implementation that first aspect or the first or the second are possible, in the implementation that the third is possible, described method also includes: when described second communication link and/or described third communication link break down, described first backbone switch sends the second notification message to the second access switch, described second notification message is used for the fourth communication link and the fifth communication link that indicate described second access switch to split in two different trunk by the second V-type communication link in same trunk between described first backbone switch and described second backbone switch from described second access switch, described fourth communication link is between described first backbone switch and described second access switch, described fifth communication link is between described second backbone switch and described second access switch；Described first backbone switch receives the second response message that described second access switch sends, and described second response message is used for indicating described second V-type communication link to be split as described fourth communication link and described fifth communication link；Described first backbone switch sends the second message according to described second response message by the second access switch described in described fourth communication chain road direction, the destination of described second message is described second backbone switch, in order to described second message is forwarded to described second backbone switch by described fifth communication link by described second access switch.

In conjunction with the implementation that first aspect or the first or the second are possible, in the 4th kind of possible implementation, described method also includes: when described first communication link recovers normal, described first backbone switch sends third notice message to described first access switch, the described first V-type communication link that described second communication link and described third communication link are merged in same trunk for indicating described first access switch by described third notice message；Described first backbone switch receives the 3rd response message that described first access switch sends, and described 3rd response message is used for indicating described second communication link and described third communication link to merge into described first V-type communication link；Described first backbone switch sends the 3rd message by described first communication link to described second backbone switch.

In conjunction with the 4th kind of possible implementation, in the 5th kind of possible implementation, before described first backbone switch sends described 3rd message to described second backbone switch, described method also includes: the port that goes out of described first backbone switch to described second backbone switch is arranged on described first communication link by described first backbone switch.

Second aspect, a kind of method providing message transmissions, described method includes: access switch receives the first notification message that the first backbone switch sends, and described first notification message is for indicating described access switch by described access switch, converging, at same port, two communication links that the V-type communication link in trunk splits in two different trunk between described first backbone switch and the second backbone switch；Described V-type communication link is split into the second communication link in two different trunk and third communication link according to described first notification message by described access switch, described second communication link is between described access switch and described first backbone switch, and described third communication link is between described access switch and described second backbone switch；The port that goes out of described access switch to described first backbone switch and described second backbone switch is respectively provided on described second communication link and described third communication link by described access switch；Described access switch sends the first response message to described first backbone switch and described second backbone switch respectively, and described first response message is used for indicating described V-type communication link to be split as described second communication link and described third communication link；Described access switch receives the first message that described first backbone switch is sent by described second communication link, and by described third communication link, described first message being forwarded to described second backbone switch, the destination of wherein said first message is described second backbone switch；Or described access switch receives the 4th message that described second backbone switch is sent by described third communication link, and by described second communication link, described second message being forwarded to described first backbone switch, the destination of wherein said 4th message is described first backbone switch.

In conjunction with second aspect, in the first possible implementation of second aspect, described method also includes: described access switch receives the third notice message that described first backbone switch sends, and described third notice message is used for indicating described access switch described second communication link and described third communication link to be incorporated in same trunk；Described second communication link and described third communication link are reconsolidated as the described V-type communication link in same trunk by described access switch according to described third notice message；The port that goes out of described access switch to described first backbone switch and described second backbone switch is arranged on described V-type communication link by described access switch；Described access switch sends the 3rd response message to described first backbone switch and described second backbone switch respectively, described 3rd response message is used for indicating described second communication link and described third communication link to merge into described V-type communication link, so that described first backbone switch sends the 3rd message by described first communication link to described second backbone switch, or described second backbone switch sends the 5th message by described first communication link to described first backbone switch.

The third aspect, provide a kind of backbone switch, described backbone switch includes: transmitting element, when breaking down for the first communication link between described backbone switch and the second backbone switch, the first notification message is sent to the first access switch, described first notification message is used for indicating described first access switch by described backbone switch, the the first V-type communication link converged in trunk at same port between described second backbone switch and described first access switch splits into the second communication link in two different trunk and third communication link, described second communication link connects described backbone switch and described first access switch, described third communication link connects described second backbone switch and described first access switch；Receiving unit, for receiving the first response message that described first access switch sends, described first response message is used for indicating described first V-type communication link to be split as described second communication link and described third communication link；Described transmitting element is additionally operable to, the first message is sent by the first access switch described in described second communication chain road direction according to described first response message, the destination of described first message is described second backbone switch, in order to described first message is forwarded to described second backbone switch by described third communication link by described first access switch.

In conjunction with the third aspect, in the first possible implementation of the third aspect, described backbone switch also includes: arrange unit, before sending described first message at described transmitting element to described first access switch, the port that goes out of described backbone switch to described second backbone switch is arranged on described second communication link.

In conjunction with in the first possible implementation of the third aspect or the third aspect, in the implementation that the second of the third aspect is possible, described backbone switch also includes: lifting unit, before sending described first message at described transmitting element to described second backbone switch, when described backbone switch to described first access switch go out port be in port isolation state time, release the described backbone switch port isolation going out port to described first access switch.

In conjunction with the implementation that the first or the second of the third aspect or the third aspect are possible, in the third possible implementation of the third aspect, described transmitting element is additionally operable to, when described second communication link and/or described third communication link break down, the second notification message is sent to the second access switch, described second notification message is used for the fourth communication link and the fifth communication link that indicate described second access switch to split in two different trunk by the second V-type communication link in same trunk between described backbone switch and described second backbone switch from described second access switch, described fourth communication link connects described backbone switch and described second access switch, described fifth communication link connects described second backbone switch and described second access switch；Described reception unit is additionally operable to, and receives the second response message that described second access switch sends, and described second response message is used for indicating described second V-type communication link to be split as described fourth communication link and described fifth communication link；Described transmitting element is additionally operable to, the second message is sent by the second access switch described in described fourth communication chain road direction according to described second response message, the destination of described second message is described second backbone switch, in order to described second message is forwarded to described second backbone switch by described fifth communication link by described second access switch.

In conjunction with the implementation that the first or the second of the third aspect or the third aspect are possible, in the 4th kind of possible implementation of the third aspect, described transmitting element is additionally operable to, when described first communication link recovers normal, third notice message is sent, the described first V-type communication link that described second communication link and described third communication link are merged in same trunk for indicating described first access switch by described third notice message to described first access switch；Described reception unit is additionally operable to, and receives the 3rd response message that described first access switch sends, and described 3rd response message is used for indicating described second communication link and described third communication link to merge into described first V-type communication link；Described transmitting element is additionally operable to, and sends the 3rd message by described first communication link to described second backbone switch.

The 4th kind of possible implementation in conjunction with the third aspect, in the 5th kind of possible implementation, described arrange unit specifically for, before described transmitting element sends described 3rd message to described second backbone switch, the port that goes out of described backbone switch to described second backbone switch is arranged on described first communication link.

Fourth aspect, provide a kind of access switch, described access switch includes: receive unit, for receiving the first notification message that the first backbone switch sends, described first notification message is for indicating described access switch by described access switch, converging, at same port, two communication links that the V-type communication link in trunk splits in two different trunk between described first backbone switch and the second backbone switch；Split cells, for described V-type communication link being split into the second communication link in two different trunk and third communication link according to described first notification message, described second communication link connects described access switch and described first backbone switch, and described third communication link connects described access switch and described second backbone switch；Unit is set, for the port that goes out of described access switch to described first backbone switch and described second backbone switch is respectively provided to described second communication link and described third communication link；Transmitting element, for sending the first response message to described first backbone switch and described second backbone switch respectively, described first response message is used for indicating described V-type communication link to be split as described second communication link and described third communication link；Described reception unit is additionally operable to, receive the first message that described first backbone switch is sent by described second communication link, or receive the 4th message that described second backbone switch is sent by described third communication link, wherein, the destination of described first message is described second backbone switch, and the destination of described 4th message is described first backbone switch；Described transmitting element is additionally operable to, and by described third communication link, described first message is forwarded to described second backbone switch, or by described second communication link, described 4th message is forwarded to described first backbone switch.

In conjunction with fourth aspect, in the first possible implementation of fourth aspect, described reception unit is additionally operable to, receiving the third notice message that described first backbone switch sends, described third notice message is used for indicating described access switch described second communication link and described third communication link to be incorporated in same trunk；Described split cells is additionally operable to, and reconsolidates described second communication link and described third communication link into the described V-type communication link in same trunk according to described third notice message；The described unit that arranges is additionally operable to, and is arranged on described V-type communication link by the port that goes out of described access switch to described first backbone switch and described second backbone switch；Described transmitting element is additionally operable to, the 3rd response message is sent respectively to described first backbone switch and described second backbone switch, described 3rd response message is used for indicating described second communication link and described third communication link to merge into described V-type communication link, so that described first backbone switch sends the 3rd message by described first communication link to described second backbone switch, or described second backbone switch sends the 5th message by described first communication link to described first backbone switch.

Technique scheme of the present invention, when communication link between backbone switch breaks down, the communication link message being connected by the V-type between backbone switch with access switch between backbone switch, SVF system can be made to keep properly functioning do not divide such that it is able to the bandwidth of described SVF system is remained unchanged.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, the accompanying drawing used required in the embodiment of the present invention will be briefly described below, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the schematic block diagram of SVF system；

Fig. 2 is the indicative flowchart of the method for message transmissions according to embodiments of the present invention；

Transmission channel handoff procedure schematic diagram when Fig. 3 is to realize the method shown in Fig. 2 in SVF system；

Another transmission channel handoff procedure schematic diagram when Fig. 4 is to realize the method shown in Fig. 2 in SVF system；

Fig. 5 is the indicative flowchart of the method for message transmissions according to another embodiment of the present invention；

Fig. 6 is the indicative flowchart of the method for message transmissions according to another embodiment of the present invention；

Another transmission channel handoff procedure schematic diagram when Fig. 7 is to realize the method shown in Fig. 2 in SVF system；

Fig. 8 is the schematic block diagram of backbone switch according to embodiments of the present invention；

Fig. 9 is the schematic block diagram of backbone switch according to another embodiment of the present invention；

Figure 10 is the schematic block diagram of access switch according to embodiments of the present invention；

Figure 11 is the schematic block diagram of backbone switch according to another embodiment of the present invention；

Figure 12 is the schematic block diagram of backbone switch according to yet another embodiment of the invention；

Figure 13 is the schematic block diagram of access switch according to another embodiment of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, all should belong to the scope of protection of the invention.

In SVF system, Fabric-link is the communication link between access switch and backbone switch.Should be understood that in embodiments of the present invention, the Fabric-link in same trunk that between an access switch and two backbone switch, V-type connects is called V-type communication link.As shown in fig. 1, the Fabric-link between access switch 1 and the backbone switch 1 and Fabric-link between the access switch in same trunk 1 and backbone switch 2 constitutes V-type communication link.

Fig. 2 is the indicative flowchart of the method 200 of message transmissions according to embodiments of the present invention.The method 200 of message transmissions can be performed by the backbone switch in SVF system.As in figure 2 it is shown, method 200 includes following content.

210, when the first communication link peer-link between the first backbone switch and the second backbone switch breaks down, described first backbone switch sends the first notification message to the first access switch, second communication link that the first V-type communication link at same trunk between described first backbone switch and described second backbone switch and the first access switch is split in two different trunk for indicating described first access switch by described first notification message and third communication link, described second communication link connects described first backbone switch and described first access switch, described third communication link connects described second backbone switch and described first access switch.

Wherein, described first backbone switch and described second backbone switch are any backbone switch in SVF system, and described first access switch is any one access switch in the multiple access switch being connected with described first backbone switch and described second backbone switch.

When described first backbone switch detects the heart beating passage time-out of peer-link link port physical fault (such as port instruction physics Down) or peer-link link, it is possible to judge that peer-link link there occurs fault.

Specifically, first access switch is after splitting into described second communication link and described third communication link by described first V-type communication link, it is possible to be respectively provided on described second communication link and described third communication link by the port that goes out of described first access switch to described first backbone switch and described second backbone switch.

220, described first backbone switch receives the first response message that described first access switch sends, and described first response message is used for indicating described first V-type communication link to be split as described second communication link and described third communication link.

230, described first backbone switch sends the first message according to described first response message by the first access switch described in described second communication chain road direction, the destination of described first message is described second backbone switch, in order to described first message is forwarded to described second backbone switch by described third communication link by described first access switch.

Wherein, described first message can include management message and/or service message.

Specifically, before step 230, method 200 can also include: the port that goes out of described first backbone switch to described second backbone switch is arranged on described second communication link by described first backbone switch.

In addition, it is to be appreciated that described second backbone switch can also receive described first response message.Described second backbone switch can send message according to described first response message by the first access switch described in described third communication chain road direction, and described message can also be forwarded to described first backbone switch by described second communication link by described first access switch.Specifically, before described second backbone switch sends message to described first access switch, the port that goes out of described second backbone switch to described first backbone switch can be arranged on described third communication link by described second backbone switch.

Now described first backbone switch and described second backbone switch can manage message and service message by described second communication link, described first access switch and described third communication link transmission.Such as, the control message and the service message that send to the second backbone switch are forwarded to described first access switch by described second communication link by described first backbone switch, then are forwarded to described second backbone switch by described first access switch by described third communication link.

Therefore, the method of message transmissions according to embodiments of the present invention, when communication link between backbone switch breaks down, the communication link message being connected by the V-type between backbone switch with access switch between backbone switch, SVF system can be made to keep properly functioning do not divide, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

It should be noted that, when communication link between the first backbone switch and the second backbone switch does not break down, beta pruning for descending broadcast, multicast and unknown unicast is realized by the port isolation technology of backbone switch side, such as described first backbone switch is in port isolation state with the port that goes out to described first access switch so that the broadcasting packet that described first backbone switch or described second backbone switch send only has portion to be transferred to described first access switch.As shown in Figure 3, existence V-type communication link between backbone switch 1 and backbone switch 2 and access switch 1, carry out port isolation at backbone switch 1, so enable to from backbone switch 1 to the broadcasting packet of access switch 1 or from backbone switch 2 to the flow of the broadcasting packet of access switch 1 only portion.It should be noted that be only described carrying out port isolation on backbone switch 1 here, it is also possible to carry out port isolation on backbone switch 2.It should be noted that and SVF system can include multiple backbone switch, only for two backbone switch in the embodiment of the present invention.It addition, SVF system can include multiple access switch, for instance 24, only for two access switch in the embodiment of the present invention.

Before step 230, when described first backbone switch to described first access switch go out port be in port isolation state time, method 200 can also include: described first backbone switch releases described first backbone switch to the port isolation going out port of described first access switch.The message so enabling to the first backbone switch transmission extremely described second backbone switch is forwarded to described second backbone switch by described first access switch.That is the message between described first backbone switch and described second backbone switch is through described first access switch transparent transmission.

As shown in Figure 4, backbone switch 1 releases the backbone switch 1 port isolation going out port to access switch 1, and other port isolation remain unchanged.So, the broadcasting packet between backbone switch 1 and backbone switch 2 can pass through access switch 1 transparent transmission, and the broadcasting packet only portion that backbone switch 1 and backbone switch 2 send arrives access switch 1 place.

Alternatively, in an alternative embodiment of the invention, method 200 can also include:

When described second communication link and/or described third communication link break down, described first backbone switch sends the second notification message to the second access switch, described second notification message is used for the fourth communication link and the fifth communication link that indicate described second access switch to split in two different trunk by the second V-type communication link in same trunk between described first backbone switch and described second backbone switch and the second access switch, described fourth communication link is between described first backbone switch and described second access switch, described fifth communication link is between described second backbone switch and described second access switch；

Described first backbone switch receives the second response message that described second access switch sends, and described second response message is used for indicating described second V-type communication link to be split as described fourth communication link and described fifth communication link；

Described first backbone switch sends the second message according to described second response message by the second access switch described in described fourth communication chain road direction, the destination of described second message is described second backbone switch, in order to described second message is forwarded to described second backbone switch by described fifth communication link by described second access switch.

Wherein, described second message can include management message and/or service message.

Additionally, described first access switch is after splitting into described fourth communication link and described fifth communication link by described second V-type communication link, it is possible to be respectively provided on described third communication link and described fourth communication link by the port that goes out of described second access switch to described first backbone switch and described second backbone switch.

Specifically, before described first backbone switch sends described second message to described second access switch, the port that transfers of described first backbone switch to described second backbone switch can be arranged on described fourth communication link by described first backbone switch according to described second response message.

Correspondingly, described second backbone switch can also receive described second response message, and according to described second response message, to described first backbone switch, described second backbone switch is gone out port and arrange in described fifth communication link.

Now, can by described fourth communication link, described second access switch and described fifth communication link transfer management message and service message between described first backbone switch and described second backbone switch.

In embodiments of the present invention, when described second communication link corresponding to the first V-type communication link or third communication link break down, by described fourth communication link corresponding to the second V-type communication link and described fifth communication link transmission message between described first backbone switch and described second backbone switch.The rest may be inferred, and all V-type communication links between described first backbone switch and described second backbone switch and multiple access switch can backup each other.

Specifically, before step 230, when described first backbone switch with to described second access switch go out port be in port isolation state time, method 200 can also include: described first backbone switch releases described first backbone switch to the port isolation going out port of described second access switch.The message so enabling to the first backbone switch transmission extremely described second backbone switch is forwarded to described second backbone switch by described second access switch.That is the message between described first backbone switch and described second backbone switch is through described second access switch transparent transmission.

When described first communication link between described first backbone switch and described second backbone switch recovers normal, described first backbone switch sends third notice message to described first access switch, and described third notice message is for indicating described first access switch that described second communication link and described third communication link are merged into the described first V-type communication link at same trunk；

Described first key exchange receives the 3rd response message that described first access switch sends, and described 3rd response message is used for indicating described second communication link and described third communication link to merge into described first V-type communication link；

Described first backbone switch sends the 3rd message by described first communication link to described second backbone switch.

Wherein, described 3rd message can include management message and/or service message.

In other words, if the peer-link between backbone switch recovers normal, then message is transmitted by peer-link between backbone switch.

Specifically, before described first backbone switch sends described 3rd message to described second backbone switch, method 200 can also include: the port that goes out of described first backbone switch to described second backbone switch is arranged on described first communication link by described first backbone switch.

It addition, the port that goes out of described second backbone switch to described first backbone switch is also arranged on described first communication link by described second backbone switch.

Therefore, the method of message transmissions according to embodiments of the present invention, when communication link between backbone switch breaks down, the communication link message connected by the V-type between backbone switch and access switch between backbone switch, SVF system can be made to keep properly functioning do not divide, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

Fig. 5 is the indicative flowchart of the method 500 of message transmissions according to another embodiment of the present invention.Method 500 can be performed by the access switch in SVF system.As it is shown in figure 5, method 500 includes following content.

510, access switch receives the first notification message that the first backbone switch sends, and described first notification message is for indicating described access switch by described access switch, converging, at same port, two communication links that the V-type communication link in trunk splits in two different trunk between described first backbone switch and the second backbone switch.

Described access switch receives the first communication link that described first notification message means between described first backbone switch and described second backbone switch and there occurs fault.

520, described V-type communication link is split into the second communication link in two different trunk and third communication link according to described first notification message by described access switch, described second communication link is between described access switch and described first backbone switch, and described third communication link is between described access switch and described second backbone switch.

Specifically, described access switch can call chip interface and create a new trunk, a link branches in described V-type communication link is exited from original trunk and adds in described new trunk, thus the Liang Tiao branch in described first V-type communication link is split in two trunk, i.e. described second communication link and described third communication link.

530, the port that goes out of described access switch to described first backbone switch and described second backbone switch is respectively provided on described second communication link and described third communication link by described access switch.

Access switch is after the described second communication link split into by described V-type communication link in two trunk and described third communication link, it is possible to directly resets and goes out port in forward table.

540, described access switch sends the first response message to described first backbone switch and described second backbone switch respectively, and described first response message is used for indicating described V-type communication link to be split as described second communication link and described third communication link.

550, described access switch receives the first message that described first backbone switch is sent by described second communication link, and by described third communication link, described first message being forwarded to described second backbone switch, the destination of wherein said first message is described second backbone switch；Or, described access switch receives the 4th message that described second backbone switch is sent by described third communication link, and by described second communication link, described 4th message being forwarded to described first backbone switch, the destination of wherein said 4th message is described first backbone switch.

Wherein, described first message and described 4th message can include management message and/or service message.

Therefore, the method of message transmissions according to embodiments of the present invention, when receiving the notification message that backbone switch sends, by the V-type communication link in same trunking between access switch and two backbone switch being split into two communication links in two different ports converge, enable between backbone switch by this two communication link transmission message, do not divide it is thus possible to make in SVF system the communication link between backbone switch keep properly functioning when breaking down, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

Alternatively, in an alternative embodiment of the invention, method 500 can also include:

Described access switch receives the third notice message that described first backbone switch sends, and described third notice message is used for indicating described access switch described second communication link and described third communication link to be incorporated in same trunk；

Described second communication link and described third communication link are reconsolidated as the described V-type communication link in same trunk by described access switch according to described third notice message；

The port that goes out of described access switch to described first backbone switch and described second backbone switch is respectively provided on described V-type communication link by described access switch；

Described access switch sends the 3rd response message to described first backbone switch and described second backbone switch respectively, described 3rd response message is used for indicating described second communication link and described third communication link to merge into described V-type communication link, so that described first backbone switch sends the 3rd message by described first communication link to described second backbone switch, or described second backbone switch sends the 5th message by described first communication link to described first backbone switch.

Wherein, described 3rd message and described 5th message can include management message and/or service message.

Described access switch receives the first communication link that described third notice message means between described first backbone switch and described second backbone switch and recovers normal.

In embodiments of the present invention, when the peer-link between backbone switch recovers normal, this backbone switch transmits message by the peer-link between backbone switch.

It should be understood that, in the access switch described in method 500 of message transmissions and the mutual and method 200 of correlation properties, function etc. and message transmissions between backbone switch, the associated description between access switch and backbone switch is corresponding, for sake of simplicity, do not repeat them here.

Method below in conjunction with Fig. 6 and Fig. 7 detailed description message transmissions according to embodiments of the present invention.The method of the message transmissions shown in Fig. 6 is the example of the method 200 of the message transmissions shown in Fig. 2, suitably omits detailed description at this.As shown in Figure 6, the method for message transmissions can include following content.

601, the peer-link link detected between backbone switch 1 and backbone switch 2 breaks down, for instance peer-link link port physics Down or link heartbeat message time-out.

602, all V-type communication link Fabric-link between traversal backbone switch 1 and backbone switch 2 and access switch, search out an available V-type communication link Fabric-link, Fabric-link1 as shown in Figure 7.

603, instruction message is sent to access switch 1, Fabric-link1 in same trunk is split into Fabric-link1-Left and the Fabric-link1-Right that the V-type in two trunk connects according to this instruction message by access switch 1, as shown in Figure 7.Make to transmit message by Fabric-link1-Left and Fabric-link1-Right between backbone switch 1 and backbone switch 2.

Wherein, being provided that of the forward table of backbone switch and access switch

A) as it is shown in figure 1, before peer-Link do not break down, backbone switch 1 is all disposed within peer-Link to the port that transfers of opposite end backbone switch 2.Backbone switch 1 and backbone switch 2 are arranged on the Fabric-link of correspondence to the port that transfers zoomed out, each zoom out go out port in a trunk.Wherein the forward table of backbone switch 1, backbone switch 2, access switch 1 and access switch 2 is respectively as shown in table 1 below～4.In following table, backbone switch 1 and backbone switch 2 represent with Spine1 and Spine2 respectively, and access switch 1 and access switch 2 represent with Leaf1 and Leaf2 respectively.It should be noted that the port that goes out of backbone switch 1, backbone switch 2, access switch 1 and access switch 2 only describes for link identification in following table, this goes out port and can also describe with the trunkID at link place, and this is not limited by the present invention.

Table 1, the forward table table 2 of backbone switch 1, backbone switch 2 forward table

Table 3, the forward table table 4 of access switch 1, access switch 2 forward table

B) as shown in Figure 7, after peer-link breaks down, select the backup link that the Fabric-link zooming out access switch 1 is peer-link that V-type connects, be split as Fabric-link1-Left and the Fabric-link1-Right in two trunk by zooming out the original communication link Fabric-link1 connecting different backbone switch in a trunk on access switch 1.The port that transfers between backbone switch 1 to the backbone switch of backbone switch 2 is all arranged on the Fabric-link that V row zooms out, and access switch 1 is arranged to Fabric-link1-Left to the port that goes out of backbone switch 1, and access switch 2 is arranged to Fabric-link1-Right to the port that goes out of backbone switch 2.Additionally, the port that transfers that access switch 1 zooms out to other V-type selects any one to arrange in Fabric-link1-Left and Fabric-link1-Right, if single armed zooms out (access switch 3 in such as Fig. 7), then the port that goes out that access switch 1 to this single armed zooms out access switch 3 arranges access switch 3 and connects on the Fabric-link1-Right of backbone switch 2 correspondence.The forward table of other access switch zoomed out is constant.

Now, the forward table of backbone switch 1, backbone switch 2, access switch 1 and access switch 2 is respectively as shown in table 5 below～8.

Table 5, the forward table table 6 of backbone switch 1, backbone switch 2 forward table

Table 7, the forward table table 8 of access switch 1, access switch 2 forward table

Furthermore it is also possible to the port that goes out of backbone switch is arranged port isolation, specifically it is referred to the content of corresponding diagram 3 and Fig. 4 above, does not repeat them here.

Now, message is transmitted by Fabric-link1-Left, access switch 1 and Fabric-link1-Right between backbone switch 1 and backbone switch 2.Such as, from the message of backbone switch 1 (or backbone switch 2) when Fabric-link1-Left (or Fabric-link1-Right) arrives access switch 1, this message is directly forwarded to backbone switch 2 (or backbone switch 1) by access switch 1.

604, judge whether peer-link recovers normal.If peer-link recovers normal, perform 605；Otherwise, 606 are performed.

605, message is transmitted either directly through peer-link between backbone switch 1 and backbone switch 2.

606, judge whether the Fabric-link that current V-type connects breaks down.If the Fabric-link that current V-type connects breaks down, continue executing with 602；Otherwise, current V-type the Fabric zoomed out continues executing with until terminating.

It should be noted that by backbone switch 2 in backbone switch 1, step 601～606 can detect that the peer-link backbone switch broken down performs at first.Such as, in step 601, if backbone switch 1 first detects that peer-link breaks down, then step 602～606 perform by backbone switch 1.Or, if backbone switch 1 and backbone switch 2 are a pair active and standby backbone switch, then step 601～606 can be performed by the host exchange in backbone switch 1 and backbone switch 2.

Above in association with Fig. 2 to Fig. 7 method describing message transmissions according to embodiments of the present invention, backbone switch according to embodiments of the present invention and access switch are described below in conjunction with Fig. 8 to Figure 12.

Fig. 8 is the schematic block diagram of backbone switch 800 according to embodiments of the present invention.As shown in Figure 8, device 800 includes: transmitting element 810 and reception unit 820.

Transmitting element 810, when breaking down for the first communication link between described backbone switch and the second backbone switch, the first notification message is sent to the first access switch, described first notification message is used for indicating described first access switch by described backbone switch, the the first V-type communication link converged in trunk at same port between described second backbone switch and described first access switch splits into the second communication link in two different trunk and third communication link, described second communication link connects described backbone switch and described first access switch, described third communication link connects described second backbone switch and described first access switch.

Receiving unit 820, for receiving the first response message that described first access switch sends, described first response message is used for indicating described first V-type communication link to be split as described second communication link and described third communication link.

Described transmitting element 820 is additionally operable to, the first message is sent by the first access switch described in described second communication chain road direction according to described first response message, the destination of described first message is described second backbone switch, in order to described first message is forwarded to described second backbone switch by described third communication link by described first access switch.

Therefore, backbone switch according to embodiments of the present invention, when communication link between backbone switch breaks down, the communication link message connected by the V-type between backbone switch and access switch between backbone switch, SVF system can be made to keep properly functioning do not divide, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

Alternatively, as shown in Figure 9, backbone switch 800 can also include: arranges unit 830, before sending described first message at described transmitting element 810 to described first access switch, the port that goes out of described backbone switch to described second backbone switch is arranged on described second communication link.

Alternatively, as shown in Figure 9, backbone switch 800 can also include: lifting unit 840, before sending described first message at described transmitting element 810 to described second backbone switch, when described backbone switch to described first access switch go out port be in port isolation state time, release the described backbone switch port isolation going out port to described first access switch.

In an alternative embodiment of the invention, described transmitting element 810 can be also used for, when described second communication link or described third communication link break down, the second notification message is sent to the second access switch, described second notification message is used for the fourth communication link and the fifth communication link that indicate described second access switch to split in two different trunk by the second V-type communication link in same trunk between described backbone switch and described second backbone switch from described second access switch, described fourth communication link connects described backbone switch and described second access switch, described fifth communication link connects described second backbone switch and described second access switch.

Described reception unit 820 can be also used for, and receives the second response message that described second access switch sends, and described second response message is used for indicating described second V-type communication link to be split as described fourth communication link and described fifth communication link.

Described transmitting element 810 can be also used for, the second message is sent by the second access switch described in described fourth communication chain road direction according to described second response message, the destination of described second message is described second backbone switch, in order to described second message is forwarded to described second backbone switch by described fifth communication link by described second access switch.

In embodiments of the present invention, when the first V-type communication link breaks down, by the second V-type communication link message between described backbone switch and described second backbone switch.The rest may be inferred, and all V-type communication links between described backbone switch and described second backbone switch and multiple access switch can backup each other.

In an alternative embodiment of the invention, described transmitting element 810 can be also used for, when described first communication link recovers normal, third notice message is sent, the described first V-type communication link that described second communication link and described third communication link are merged in same trunk for indicating described first access switch by described third notice message to described first access switch；

Described reception unit 820 can be also used for, and receives the 3rd response message that described first access switch sends, and described 3rd response message is used for indicating described second communication link and described third communication link to merge into described first V-type communication link；

Described transmitting element 810 can be also used for, and sends the 3rd message by described first communication link to described second backbone switch.

Wherein, the described unit 830 that arranges can be also used for, and before described transmitting element 810 sends described 3rd message to described second backbone switch, is arranged on described first communication link by the port that goes out of described backbone switch to described second backbone switch.

It should be understood that, backbone switch 800 according to embodiments of the present invention may correspond to the first backbone switch in the method 200 of message transmissions according to embodiments of the present invention, and above-mentioned and other operation of the unit in device 800 and/or function are respectively in order to realize the corresponding flow process of the method 200 in Fig. 2, for sake of simplicity, do not repeat them here.

Figure 10 is the schematic block diagram of access switch 1000 according to another embodiment of the present invention.As shown in Figure 10, device 1000 includes: receives unit 1010, split cells 1020, arrange unit 1030 and transmitting element 1040.

Receive unit 1010, for receiving the first notification message that the first backbone switch sends, described first notification message is for indicating described access switch by described access switch, converging, at same port, two communication links that the V-type communication link in trunk splits in two different trunk between described first backbone switch and the second backbone switch.

Split cells 1020, for described V-type communication link being split into the second communication link in two different trunk and third communication link according to described first notification message, described second communication link connects described access switch and described first backbone switch, and described third communication link connects described access switch and described second backbone switch.

Unit 1030 is set, for the port that goes out of described access switch to described first backbone switch and described second backbone switch is respectively provided to described second communication link and described third communication link.

Transmitting element 1040, for sending the first response message to described first backbone switch and described second backbone switch respectively, described first response message is used for indicating described V-type communication link to be split as described second communication link and described third communication link.

Described reception unit 1010 can be also used for, receive the first message that described first backbone switch is sent by described second communication link, or receive the 4th message that described second backbone switch is sent by described third communication link, wherein, the destination of described first message is described second backbone switch, and the destination of described 4th message is described first backbone switch.

Described transmitting element 1040 can be also used for, and by described third communication link, described first message is forwarded to described second backbone switch, or by described second communication link, described 4th message is forwarded to described first backbone switch.

Therefore, access switch according to embodiments of the present invention, when receiving the notification message that backbone switch sends, by the V-type communication link in same trunking between access switch and two backbone switch being split into two communication links in two different ports converge, enable between backbone switch by this two communication link transmission message, do not divide it is thus possible to make in SVF system the communication link between backbone switch keep properly functioning when breaking down, so that bandwidth remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

Alternatively, in an alternative embodiment of the invention, described reception unit 1010 can be also used for, receiving the third notice message that described first backbone switch sends, described third notice message is used for indicating described access switch described second communication link and described third communication link to be incorporated in same trunk；

Described split cells 1020 can be also used for, and reconsolidates described second communication link and described third communication link into the described V-type communication link in same trunk according to described third notice message；The described unit 1030 that arranges can be also used for, and is arranged on described V-type communication link by the port that goes out of described access switch to described first backbone switch and described second backbone switch；

Described transmitting element 1040 can be also used for, the 3rd response message is sent respectively to described first backbone switch and described second backbone switch, described 3rd response message is used for indicating described second communication link and described third communication link to merge into described V-type communication link, so that described first backbone switch sends the 3rd message by described first communication link to described second backbone switch, or described second backbone switch sends the 5th message by described first communication link to described first backbone switch.

In embodiments of the present invention, when the peer-link between backbone switch recovers normal, between backbone switch, message is transmitted by peer-link.

It should be understood that, access switch 1000 according to embodiments of the present invention may correspond to the access switch in the method 500 of message transmissions according to embodiments of the present invention, and above-mentioned and other operation of the unit in device 1000 and/or function are respectively in order to realize the corresponding flow process of the method 500 in Fig. 5, for sake of simplicity, do not repeat them here.

Therefore, access switch according to embodiments of the present invention, when receiving the notification message that backbone switch sends, by the V-type communication link in same trunking between access switch and two backbone switch being split into two communication links in two different ports converge, enable between backbone switch by this two communication link transmission message, do not divide it is thus possible to make in SVF system the communication link between backbone switch keep properly functioning when breaking down, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

Present invention also offers a kind of super virtual switching network system, described system includes backbone switch 800 and access switch 1000.

The super virtual switching network SVF system of the embodiment of the present invention, when communication link between backbone switch breaks down, the communication link message connected by the V-type between backbone switch and access switch between backbone switch, make SVF system can keep properly functioning not divide, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

Figure 11 is the schematic block diagram of backbone switch 1100 according to another embodiment of the present invention.As it can be seen, this backbone switch 1100 includes transmitter 1110, receptor 1120 and bus system 1130.

When transmitter 1110 breaks down for the first communication link between backbone switch and the second backbone switch, the first notification message is sent to the first access switch, described first notification message is used for indicating described first access switch by described backbone switch, the the first V-type communication link converged in trunk at same port between described second backbone switch and described first access switch splits into the second communication link in two different trunk and third communication link, described second communication link connects described backbone switch and described first access switch, described third communication link connects described second backbone switch and described first access switch.

Receptor 1120 can be also used for receiving the first response message that described first access switch sends, and described first response message is used for indicating described first V-type communication link to be split as described second communication link and described third communication link.

Transmitter 1110 can be also used for sending the first message according to described first response message by the first access switch described in described second communication chain road direction, the destination of described first message is described second backbone switch, in order to described first message is forwarded to described second backbone switch by described third communication link by described first access switch.

Alternatively, as shown in figure 12, backbone switch 1100 can also include: processor 1140 and memorizer 1150.Processor 1140 is by described bus system 1130, call the instruction of storage in described memorizer 1150, before described first backbone switch sends described first message to described first access switch, the port that goes out of described backbone switch to described second backbone switch is arranged on described second communication link.Alternatively, processor 1140 can be also used for before described transmitter 1110 sends described first message to described second backbone switch, when described backbone switch to described first access switch go out port be in port isolation state time, release the described backbone switch port isolation going out port to described first access switch.

In an alternative embodiment of the invention, transmitter 1110 can be also used for: when described second communication link or described third communication link break down, the second notification message is sent to the second access switch, described second notification message is used for the fourth communication link and the fifth communication link that indicate described second access switch to split in two different trunk by the second V-type communication link in same trunk between described backbone switch and described second backbone switch from described second access switch, described fourth communication link connects described backbone switch and described second access switch, described fifth communication link connects described second backbone switch and described second access switch；

Described receptor 1120 can be also used for receiving the second response message that described second access switch sends, and described second response message is used for indicating described second V-type communication link to be split as described fourth communication link and described fifth communication link；

Described transmitter 1110 can be also used for, the second message is sent by the second access switch described in described fourth communication chain road direction according to described second response message, the destination of described second message is described second backbone switch, in order to described second message is forwarded to described second backbone switch by described fifth communication link by described second access switch.

Alternatively, in an alternative embodiment of the invention, transmitter 1110 can be also used for, when described first communication link recovers normal, third notice message is sent, the described first V-type communication link that described second communication link and described third communication link are merged in same trunk for indicating described first access switch by described third notice message to described first access switch；

Receptor 1120 can be also used for, and receives the 3rd response message that described first access switch sends, and described 3rd response message is used for indicating described second communication link and described third communication link to merge into described first V-type communication link；

Transmitter 1110 can be also used for, and sends the 3rd message by described first communication link to described second backbone switch.

Wherein, processor 1140 can be also used for, and before described transmitter 1110 sends described 3rd message to described second backbone switch, is arranged on described first communication link by the port that goes out of described backbone switch to described second backbone switch.

It should be understood that, in embodiments of the present invention, this processor 1140 can be CPU (CentralProcessingUnit, CPU), this processor 1140 can also is that other general processors, digital signal processor (DSP), special IC (ASIC), ready-made programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware components etc..The processor etc. that general processor can be microprocessor or this processor can also be any routine.

This memorizer 1150 can include read only memory and random access memory, and provides instruction and data to processor 1110.A part for memorizer 1150 can also include nonvolatile RAM.Such as, the information of all right storage device type of memorizer 1150.

This bus system 1130 is except including data/address bus, it is also possible to includes power bus, control bus and status signal bus in addition etc..But in order to know for the purpose of explanation, in the drawings various buses are all designated as bus system 1130.

In realizing process, each step of said method can be completed by the instruction of the integrated logic circuit of the hardware in processor 1140 or software form.Hardware processor can be embodied directly in conjunction with the step of the method disclosed in the embodiment of the present invention to have performed, or combine execution by the hardware in processor and software module and complete.Software module may be located at random access memory, flash memory, read only memory, in the storage medium that this area such as programmable read only memory or electrically erasable programmable memorizer, depositor is ripe.This storage medium is positioned at memorizer 1150, and processor 1140 reads the information in memorizer 1150, completes the step of said method in conjunction with its hardware.For avoiding repeating, it is not detailed herein.

It should be understood that, backbone switch 1100 according to embodiments of the present invention may correspond to the first backbone switch in the method 200 of message transmissions according to embodiments of the present invention and backbone switch 800, and above-mentioned and other operation of the unit in backbone switch 1100 and/or function are respectively in order to realize the corresponding flow process of the method 200 in Fig. 2, for sake of simplicity, do not repeat them here.

Figure 13 is the schematic block diagram of access switch 1300 according to another embodiment of the present invention.As shown in figure 13, access switch 1300 includes processor 1310, memorizer 1320, bus system 1330, transmitter 1340 and receptor 1350.Wherein, processor 1310, memorizer 1320, transmitter 1340 are connected by bus system 1330 with receptor 1350, and this memorizer 1320 is used for storing instruction, and this processor 1310 is for performing the instruction of this memorizer 1320 storage.

Receptor 1350 is for receiving the first notification message that the first backbone switch sends, and described first notification message is for indicating described access switch by described access switch, converging, at same port, two communication links that the V-type communication link in trunk splits in two different trunk between described first backbone switch and the second backbone switch.

Processor 1310 for splitting into the second communication link in two different trunk and third communication link according to described first notification message by described V-type communication link, described second communication link is between described access switch and described first backbone switch, and described third communication link is between described access switch and described second backbone switch.

Processor 1310 can be also used for being respectively provided on described second communication link and the described third communication link port that goes out of described access switch to described first backbone switch and described second backbone switch.

Transmitter 1340 can be also used for sending the first response message to described first backbone switch and described second backbone switch respectively, and described first response message is used for indicating described V-type communication link to be split as described second communication link and described third communication link.

Receptor 1350 can be also used for receiving the first message that described first backbone switch is sent by described second communication link, or receive the 4th message that described second backbone switch is sent by described third communication link, wherein, the destination of described first message is described second backbone switch, and the destination of described 4th message is described first backbone switch.

Transmitter 1340 can be also used for, by described third communication link, described first message is forwarded to described second backbone switch, or by described second communication link, described 4th message is forwarded to described first backbone switch.

Therefore, access switch according to embodiments of the present invention, when receiving the notification message that backbone switch sends, V-type communication link in same trunking between access switch and two backbone switch is split into two communication links in two different ports converge, enable between backbone switch by this two communication link transmission message, it is thus possible to backbone switch keeps properly functioning and does not divide when making in SVF system the communication link between backbone switch break down, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

It should be understood that, in embodiments of the present invention, this processor 1310 can be CPU (CentralProcessingUnit, CPU), this processor 1310 can also is that other general processors, digital signal processor (DSP), special IC (ASIC), ready-made programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware components etc..The processor etc. that general processor can be microprocessor or this processor can also be any routine.

This memorizer 1320 can include read only memory and random access memory, and provides instruction and data to processor 1310.A part for memorizer 1320 can also include nonvolatile RAM.Such as, the information of all right storage device type of memorizer 1320.

This bus system 1330 is except including data/address bus, it is also possible to includes power bus, control bus and status signal bus in addition etc..But in order to know for the purpose of explanation, in the drawings various buses are all designated as bus system 1330.

In realizing process, each step of said method can be completed by the instruction of the integrated logic circuit of the hardware in processor 1310 or software form.Hardware processor can be embodied directly in conjunction with the step of the method disclosed in the embodiment of the present invention to have performed, or combine execution by the hardware in processor and software module and complete.Software module may be located at random access memory, flash memory, read only memory, in the storage medium that this area such as programmable read only memory or electrically erasable programmable memorizer, depositor is ripe.This storage medium is positioned at memorizer 1320, and processor 1310 reads the information in memorizer 1320, completes the step of said method in conjunction with its hardware.For avoiding repeating, it is not detailed herein.

Alternatively, in an alternative embodiment of the invention, receptor 1350 can be also used for, receiving the third notice message that described first backbone switch sends, described third notice message is used for indicating described access switch described second communication link and described third communication link to be incorporated in same trunk；

Processor 1310 can be also used for, and reconsolidates described second communication link and described third communication link into the described V-type communication link in same trunk according to described third notice message；

Processor 1310 can be also used for arranging on described V-type communication link the port that goes out of described access switch to described first backbone switch and described second backbone switch；

Transmitter 1340 can be also used for sending the 3rd response message to described first backbone switch and described second backbone switch respectively, described 3rd response message is used for indicating described second communication link and described third communication link to merge into described V-type communication link, so that described first backbone switch sends the 3rd message by described first communication link to described second backbone switch, or described second backbone switch sends the 5th message by described first communication link to described first backbone switch.

It should be understood that, access switch 1300 according to embodiments of the present invention may correspond to the access switch in the method 500 of message transmissions according to embodiments of the present invention and access switch 1000 according to embodiments of the present invention, and above-mentioned and other operation of the unit in access switch 1300 and/or function are respectively in order to realize the corresponding flow process of the method 500 in Fig. 5, for sake of simplicity, do not repeat them here.

Therefore, access switch according to embodiments of the present invention, when receiving the notification message that backbone switch sends, V-type communication link in same trunking between access switch and two backbone switch is split into two communication links in two different ports converge, enable between backbone switch by this two communication link transmission message, do not divide it is thus possible to make in SVF system the communication link between backbone switch keep properly functioning when breaking down, so that the bandwidth of described SVF system remains unchanged, do not affect the up-downgoing flow of user, the impact brought to user under fault scenes is reduced to minimum.

Another embodiment of the present invention additionally provides a kind of super virtual switching network system, and described system includes backbone switch 1100 and access switch 1300.

It addition, the terms " system " and " network " are often used interchangeably in this article.The terms "and/or", is only a kind of incidence relation describing affiliated partner, and expression can exist three kinds of relations, for instance, A and/or B, it is possible to represent: individualism A, there is A and B, individualism B these three situation simultaneously.It addition, character "/" herein, typically represent forward-backward correlation to as if the relation of a kind of "or".

Those of ordinary skill in the art are it is to be appreciated that the unit of each example that describes in conjunction with the embodiments described herein and algorithm steps, it is possible to being implemented in combination in of electronic hardware or computer software and electronic hardware.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel specifically can should be used for using different methods to realize described function to each, but this realization is it is not considered that beyond the scope of this invention.

Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, and the specific works process of the system of foregoing description, device and unit, it is possible to reference to the corresponding process in preceding method embodiment, do not repeat them here.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, it is possible to realize by another way.Such as, device embodiment described above is merely schematic, such as, the division of described unit, being only a kind of logic function to divide, actual can have other dividing mode when realizing, for instance multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some features can ignore, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be through INDIRECT COUPLING or the communication connection of some interfaces, device or unit, it is possible to be electrical, machinery or other form.

The described unit illustrated as separating component can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.

It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.

If described function is using the form realization of SFU software functional unit and as independent production marketing or use, it is possible to be stored in a computer read/write memory medium.Based on such understanding, part or the part of this technical scheme that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-OnlyMemory), the various media that can store program code such as random access memory (RAM, RandomAccessMemory), magnetic disc or CD.

The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims

1. the method for a message transmissions, it is characterised in that including:

When the first communication link between the first backbone switch and the second backbone switch breaks down, described first backbone switch sends the first notification message to the first access switch, described first notification message is used for indicating described first access switch by described first backbone switch, the the first V-type communication link converged in trunk at same port between described second backbone switch and described first access switch splits into the second communication link in two different trunk and third communication link, described second communication link connects described first backbone switch and described first access switch, described third communication link connects described second backbone switch and described first access switch；

Described first backbone switch receives the first response message that described first access switch sends, and described first response message is used for indicating described first V-type communication link to be split as described second communication link and described third communication link；

Described first backbone switch sends the first message according to described first response message by the first access switch described in described second communication chain road direction, the destination of described first message is described second backbone switch, in order to described first message is forwarded to described second backbone switch by described third communication link by described first access switch.

2. method according to claim 1, it is characterised in that before described first backbone switch sends described first message to described first access switch, described method also includes:

The port that goes out of described first backbone switch to described second backbone switch is arranged on described second communication link by described first backbone switch.

3. method according to claim 1 and 2, it is characterized in that, before described first backbone switch sends described first message to described first access switch, when described first backbone switch to described first access switch go out port be in port isolation state time, described method also includes:

Described first backbone switch releases described first backbone switch port isolation going out port to described first access switch.

4. according to the method in any one of claims 1 to 3, it is characterised in that also include:

When described second communication link or described third communication link break down, described first backbone switch sends the second notification message to the second access switch, described second notification message is used for the fourth communication link and the fifth communication link that indicate described second access switch to split in two different trunk by the second V-type communication link in same trunk between described first backbone switch and described second backbone switch from described second access switch, described fourth communication link connects described first backbone switch and described second access switch, described fifth communication link connects described second backbone switch and described second access switch；

5. according to the method in any one of claims 1 to 3, it is characterised in that also include:

When described first communication link recovers normal, described first backbone switch sends third notice message to described first access switch, the described first V-type communication link that described second communication link and described third communication link are merged in same trunk for indicating described first access switch by described third notice message；

Described first backbone switch receives the 3rd response message that described first access switch sends, and described 3rd response message is used for indicating described second communication link and described third communication link to merge into described first V-type communication link；

6. method according to claim 5, it is characterised in that before described first backbone switch sends described 3rd message to described second backbone switch, described method also includes:

The port that goes out of described first backbone switch to described second backbone switch is arranged on described first communication link by described first backbone switch.

7. the method for a message transmissions, it is characterised in that including:

Access switch receives the first notification message that the first backbone switch sends, and described first notification message is for indicating described access switch by described access switch, converging, at same port, two communication links that the V-type communication link in trunk splits in two different trunk between described first backbone switch and the second backbone switch；

Described V-type communication link is split into the second communication link in two different trunk and third communication link according to described first notification message by described access switch, described second communication link connects described access switch and described first backbone switch, and described third communication link connects described access switch and described second backbone switch；

The port that goes out of described access switch to described first backbone switch and described second backbone switch is respectively provided on described second communication link and described third communication link by described access switch；

Described access switch sends the first response message to described first backbone switch and described second backbone switch respectively, and described first response message is used for indicating described V-type communication link to be split as described second communication link and described third communication link；

Described access switch receives the first message that described first backbone switch is sent by described second communication link, and by described third communication link, described first message being forwarded to described second backbone switch, the destination of wherein said first message is described second backbone switch；Or

Described access switch receives the 4th message that described second backbone switch is sent by described third communication link, and by described second communication link, described 4th message being forwarded to described first backbone switch, the destination of wherein said 4th message is described first backbone switch.

8. method according to claim 7, it is characterised in that also include:

Described access switch sends the 3rd response message to described first backbone switch, described 3rd response message is used for indicating described second communication link and described third communication link to merge into described V-type communication link, so that described first backbone switch sends the 3rd message by described first communication link to described second backbone switch, or described second backbone switch sends the 5th message by described first communication link to described first backbone switch.

9. a backbone switch, it is characterised in that including:

Transmitting element, when breaking down for the first communication link between described backbone switch and the second backbone switch, the first notification message is sent to the first access switch, described first notification message is used for indicating described first access switch by described backbone switch, the the first V-type communication link converged in trunk at same port between described second backbone switch and described first access switch splits into the second communication link in two different trunk and third communication link, described second communication link connects described backbone switch and described first access switch, described third communication link connects described second backbone switch and described first access switch；

Receiving unit, for receiving the first response message that described first access switch sends, described first response message is used for indicating described first V-type communication link to be split as described second communication link and described third communication link；

Described transmitting element is additionally operable to, the first message is sent by the first access switch described in described second communication chain road direction according to described first response message, the destination of described first message is described second backbone switch, in order to described first message is forwarded to described second backbone switch by described third communication link by described first access switch.

10. backbone switch according to claim 9, it is characterised in that also include:

Unit is set, before sending described first message at described transmitting element to described first access switch, the port that goes out of described backbone switch to described second backbone switch is arranged on described second communication link.

11. the backbone switch according to claim 9 or 10, it is characterised in that also include:

Lifting unit, before sending described first message at described transmitting element to described second backbone switch, when described backbone switch to described first access switch go out port be in port isolation state time, release the described backbone switch port isolation going out port to described first access switch.

12. the backbone switch according to any one of claim 9 to 11, it is characterized in that, described transmitting element is additionally operable to, when described second communication link and/or described third communication link break down, the second notification message is sent to the second access switch, described second notification message is used for the fourth communication link and the fifth communication link that indicate described second access switch to split in two different trunk by the second V-type communication link in same trunk between described backbone switch and described second backbone switch from described second access switch, described fourth communication link connects described backbone switch and described second access switch, described fifth communication link connects described second backbone switch and described second access switch；

Described reception unit is additionally operable to, and receives the second response message that described second access switch sends, and described second response message is used for indicating described second V-type communication link to be split as described fourth communication link and described fifth communication link；

Described transmitting element is additionally operable to, the second message is sent by the second access switch described in described fourth communication chain road direction according to described second response message, the destination of described second message is described second backbone switch, in order to described second message is forwarded to described second backbone switch by described fifth communication link by described second access switch.

13. the backbone switch according to any one of claim 9 to 12, it is characterized in that, described transmitting element is additionally operable to, when described first communication link recovers normal, third notice message is sent, the described first V-type communication link that described second communication link and described third communication link are merged in same trunk for indicating described first access switch by described third notice message to described first access switch；

Described reception unit is additionally operable to, and receives the 3rd response message that described first access switch sends, and described 3rd response message is used for indicating described second communication link and described third communication link to merge into described first V-type communication link；

Described transmitting element is additionally operable to, and sends the 3rd message by described first communication link to described second backbone switch.

14. backbone switch according to claim 13, it is characterized in that, described arrange unit specifically for, before described transmitting element sends described 3rd message to described second backbone switch, the port that goes out of described backbone switch to described second backbone switch is arranged on described first communication link.

15. an access switch, it is characterised in that including:

Receive unit, for receiving the first notification message that the first backbone switch sends, described first notification message is for indicating described access switch by described access switch, converging, at same port, two communication links that the V-type communication link in trunk splits in two different trunk between described first backbone switch and the second backbone switch；

Split cells, for described V-type communication link being split into the second communication link in two different trunk and third communication link according to described first notification message, described second communication link connects described access switch and described first backbone switch, and described third communication link connects described access switch and described second backbone switch；

Unit is set, for the port that goes out of described access switch to described first backbone switch and described second backbone switch is respectively provided to described second communication link and described third communication link；

Transmitting element, for sending the first response message to described first backbone switch and described second backbone switch respectively, described first response message is used for indicating described V-type communication link to be split as described second communication link and described third communication link；

Described reception unit is additionally operable to, receive the first message that described first backbone switch is sent by described second communication link, or receive the 4th message that described second backbone switch is sent by described third communication link, wherein, the destination of described first message is described second backbone switch, and the destination of described 4th message is described first backbone switch；

Described transmitting element is additionally operable to, and by described third communication link, described first message is forwarded to described second backbone switch, or by described second communication link, described 4th message is forwarded to described first backbone switch.

16. access switch according to claim 15, it is characterized in that, described reception unit is additionally operable to, receiving the third notice message that described first backbone switch sends, described third notice message is used for indicating described access switch described second communication link and described third communication link to be incorporated in same trunk；

Described split cells is additionally operable to, and reconsolidates described second communication link and described third communication link into the described V-type communication link in same trunk according to described third notice message；

The described unit that arranges is additionally operable to, and is arranged on described V-type communication link by the port that goes out of described access switch to described first backbone switch and described second backbone switch；

Described transmitting element is additionally operable to, the 3rd response message is sent respectively to described first backbone switch and described second backbone switch, described 3rd response message is used for indicating described second communication link and described third communication link to merge into described V-type communication link, so that described first backbone switch sends the 3rd message by described first communication link to described second backbone switch, or described second backbone switch sends the 5th message by described first communication link to described first backbone switch.