CN102546265B

CN102546265B - Fault processing method, device and system for virtual private local area network

Info

Publication number: CN102546265B
Application number: CN201210047840.4A
Authority: CN
Inventors: 王松涛; 刘长宝
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-02-28
Filing date: 2012-02-28
Publication date: 2015-03-11
Anticipated expiration: 2032-02-28
Also published as: WO2013127179A1; CN102546265A

Abstract

The embodiment of the invention discloses a fault processing method, a device and a system for a virtual private local area network, relates to the technical field of network communication, in order to solve the problem of bandwidth waste of a VPLS (Virtual Private Local Area Network Service) network, caused by that the CE connected at the other end of the IVSI still transmits data to the VPLS network when a CE (Customer Edge) connected at one end of an IVSI (Instance Component Virtual Private Instance) can not access to a network. The fault processing method comprises the following steps: a relay virtual private instance sends fault notice information to a backbone component virtual private instance at an opposite terminal, wherein the fault notice information carries the instance component virtual private instance at a home terminal and an instance tag shared with the instance component virtual private instance at the opposite terminal; and the backbone component virtual private instance at the opposite terminal receives the fault notice information, and the instance component virtual private instance at the opposite terminal is closed according to the instance tag carried by the fault notice information.

Description

The fault handling method of virtual special local area network, Apparatus and system

Technical field

The present invention relates to network communication technology field, particularly relate to a kind of fault handling method of virtual special local area network, Apparatus and system.

Background technology

VPN (virtual private network) (Virtual Private Network is called for short VPN) refers to the technology setting up dedicated network in common network.Why it is called VPN (virtual private network), mainly because the end to end physical link of connection not needed for traditional private network between any two nodes of whole VPN, but the logical network on the network platform that provides in common network service provider of framework, user data transmits in logical links.

Wherein, VPLS (Virtual Private Local Area Network Service is called for short VPLS) is a kind of typical two-layer virtual private network technology.Its core concept utilizes the provider edge router of signaling protocol in VPLS example (Provider Edge, be called for short PE) set up between node and safeguard pseudo-line (Pseudo Wire, be called for short PW), transmit on PW after two-layer protocol frame is encapsulated, exchange, to make in wide scope multiple local area network (LAN) be integrated into one in data link aspect to throw the net network, provide virtual Ethernet service to user.

PE internal main will comprise user oriented edge router (Customer Edge, be called for short CE) Service Instance assembly virtual switch instance (Instance Component Virtual Private Instance, be called for short IVSI) and towards the backbone network assembly virtual switch instance (Backbone Component VirtualPrivate Instance, be called for short BVSI) of opposite end PE.Wherein, IVSI and CE crosses various forms of connection circuit (Attachment Circuit, be called for short AC) be connected, and IVSI exists in pairs, every a pair IVSI owns a service instance tag (Instance Tag together, be called for short I-Tag), every a pair IVSI belongs to two PE being positioned at VPLS network two ends respectively.IVSI in the PE of one end broadcasts to each bar PW be connected with this PE the packet carrying I-Tag, after obtaining packet, IVSI in each PE analyzes the I-Tag entrained by packet, when a certain IVSI finds that the I-Tag entrained by this packet is consistent with the I-Tag of oneself, corresponding CE is sent to after then this packet being further processed, otherwise by this data packet discarding.

When the PE in VPLS network is more, each PE is connected by PW with contiguous backbone network core bridge joint (BackboneCore Bridge is called for short BCB), by BCB, is communicated with between each PE.

In the prior art, when VPLS network cannot be connected into one of them CE be connected of a pair IVSI owning an I-Tag together, the IVSI of opposite end cannot perception, still receive the data of connected CE transmission and transmit data in a broadcast manner to VPLS network, these invalid data greatly waste the bandwidth of VPLS network, bring unnecessary burden to the transmission of VPLS network.

Summary of the invention

An aspect of of the present present invention technical problem to be solved is the fault handling method, the Apparatus and system that provide a kind of virtual special local area network, can solve when one end IVSI connect CE cannot access network time, other end IVSI connect CE still to VPLS network transmission data to the problem of the waste of the bandwidth of VPLS network.

For solving the problems of the technologies described above, the fault handling method of the virtual special local area network that an aspect of of the present present invention provides, Apparatus and system adopt following technical scheme:

When relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance,

Or

When described relaying virtual switch instance knows the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router,

Described relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance;

Described opposite end backbone network assembly virtual switch instance receives described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed by the described service instance tag entrained by described fault notification message.

A kind of local terminal backbone network assembly virtual switch instance, comprising:

Local terminal closing module, during for detecting that described local terminal backbone network assembly virtual switch instance cannot be communicated with opposite end backbone network assembly virtual switch instance when local terminal backbone network assembly virtual switch instance, described local terminal Service Instance assembly virtual switch instance is closed.

A kind of opposite end backbone network assembly virtual switch instance, comprising:

Opposite end closing module, during for receiving fault notification message that relaying virtual switch instance or local terminal backbone network assembly virtual switch instance send when opposite end backbone network assembly virtual switch instance, closes opposite end Service Instance assembly virtual switch instance;

Wherein, described fault notification message carries local terminal Service Instance assembly virtual switch instance and the common service instance tag of opposite end Service Instance assembly virtual switch instance.

A kind of relaying virtual switch instance, comprising:

Relaying notification module, when described relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, send fault notification message to opposite end backbone network assembly virtual switch instance, described fault notification message is for notifying that opposite end backbone network assembly virtual switch instance closes opposite end Service Instance assembly virtual switch instance;

Wherein, described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of opposite end Service Instance assembly virtual switch instance.

A fault processing system for virtual special local area network, comprises above-mentioned local terminal backbone network assembly virtual switch instance, above-mentioned opposite end backbone network assembly virtual switch instance and above-mentioned relaying virtual switch instance.

In technical scheme provided by the invention, when relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, or when described relaying virtual switch instance knows the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router, described relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, receive the connectivity port between the opposite end backbone network assembly virtual switch instance closedown opposite end Service Instance assembly virtual switch instance of fault notification message and Customer Edge router, make opposite end Service Instance assembly virtual switch instance cannot receive the data from connectivity port and send to network, greatly reduce invalid data flows into network possibility from the Service Instance assembly virtual switch instance of opposite end, solve in prior art cannot be communicated with between the backbone network assembly virtual switch instance of two ends or one end Service Instance assembly virtual switch instance cannot be communicated with Customer Edge router time, other end Service Instance assembly virtual switch instance still sends data to the wasting problem of the network bandwidth to network.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the fault handling method flow chart one of virtual special local area network in the embodiment of the present invention;

Fig. 2 is the failure condition schematic diagram one of virtual special local area network in the embodiment of the present invention;

Fig. 3 is the failure condition schematic diagram two of virtual special local area network in the embodiment of the present invention;

Fig. 4 is the fault handling method flowchart 2 of virtual special local area network in the embodiment of the present invention;

Fig. 5 is the fault handling method flow chart 3 of virtual special local area network in the embodiment of the present invention;

Fig. 6 is the failure condition schematic diagram three of virtual special local area network in the embodiment of the present invention;

Fig. 7 is the failure condition schematic diagram four of virtual special local area network in the embodiment of the present invention;

Fig. 8 is the fault handling method flow chart four of virtual special local area network in the embodiment of the present invention;

Fig. 9 is the fault handling method flow chart five of virtual special local area network in the embodiment of the present invention;

Figure 10 is the failure condition schematic diagram five of virtual special local area network in the embodiment of the present invention;

Figure 11 is the fault handling method flow chart six of virtual special local area network in the embodiment of the present invention;

Figure 12 is the failure condition schematic diagram six of virtual special local area network in the embodiment of the present invention;

Figure 13 is local terminal backbone network assembly virtual switch instance structural representation in the embodiment of the present invention;

Figure 14 is opposite end backbone network assembly virtual switch instance structural representation in the embodiment of the present invention;

Figure 15 is relaying virtual switch instance structural representation in the embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment one

Embodiments provide a kind of fault handling method of virtual special local area network, when relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, or when described relaying virtual switch instance knows the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router, as shown in Figure 1, the method comprises:

Step S101, described relaying virtual switch instance send fault notification message to opposite end backbone network assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance;

In embodiments of the present invention, described fault notification message can be the signaling of tag distribution protocol form, and in general, fault notification message carries the multiple fields representing service instance tag, failure cause etc. respectively.

It should be noted that, in embodiments of the present invention, for convenience of description, two backbone network assembly virtual switch instance called after local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance respectively at virtual special local area network two ends will be laid respectively at, wherein, by the backbone network assembly virtual switch instance called after local terminal backbone network assembly virtual switch instance be directly connected with the pseudo-line of fault, the backbone network assembly virtual switch instance called after opposite end backbone network assembly virtual switch instance be not directly connected with the pseudo-line of fault.

As shown in Figure 2, in a specified context of the embodiment of the present invention, during pseudo-lines fault between local terminal backbone network assembly virtual switch instance and relaying virtual switch instance, described relaying virtual switch instance can detect the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance.

Local terminal backbone network assembly virtual switch instance sends detection messages to relaying virtual switch instance at a certain time interval by pseudo-line, after relaying virtual switch instance receives detection messages, send feedback message by pseudo-alignment local terminal backbone network assembly virtual switch instance.

When relaying virtual switch instance does not receive the detection messages from local terminal backbone network assembly virtual switch instance after some period of time yet, pseudo-lines fault between the known relaying virtual switch instance of relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, then relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance.

As shown in Figure 3, in another specified context of the embodiment of the present invention, during connection fault between described Customer Edge router and local terminal Service Instance assembly virtual switch instance, described local terminal Service Instance assembly virtual switch instance can perceive and cannot be communicated with between Customer Edge router, described local terminal Service Instance assembly virtual switch instance reports described local terminal backbone network assembly virtual switch instance, described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router, described local terminal backbone network assembly virtual switch instance sends fault notification message to described relaying virtual switch instance, described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance.

Described relaying virtual switch instance, after receiving the fault notification message sent by described local terminal backbone network assembly virtual switch instance, forwards this fault notification message to opposite end backbone network assembly virtual switch instance.

Step S102, described opposite end backbone network assembly virtual switch instance receive described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed by the described service instance tag entrained by described fault notification message.

After opposite end backbone network assembly virtual switch instance receives fault notification message, service instance tag entrained by fault notification message, shutdown command is sent to the opposite end Service Instance assembly virtual switch instance corresponding to this service instance tag, this shutdown command can control the connectivity port between opposite end Service Instance assembly virtual switch instance closedown with Customer Edge router, then after connectivity port is closed by opposite end Service Instance assembly virtual switch instance, the data of Customer Edge router cannot send into virtual special local area network, greatly reduce the waste to resources such as the bandwidth of virtual special local area network.

In the technical scheme of the embodiment of the present invention, when relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, or when described relaying virtual switch instance knows the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router, described relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, receive the connectivity port between the opposite end backbone network assembly virtual switch instance closedown opposite end Service Instance assembly virtual switch instance of fault notification message and Customer Edge router, make opposite end Service Instance assembly virtual switch instance cannot receive the data from connectivity port and send to network, greatly reduce invalid data flows into network possibility from the Service Instance assembly virtual switch instance of opposite end, solve in prior art cannot be communicated with between the backbone network assembly virtual switch instance of two ends or one end Service Instance assembly virtual switch instance cannot be communicated with Customer Edge router time, other end Service Instance assembly virtual switch instance still sends data to the wasting problem of the network bandwidth to network.

Embodiment two

Embodiments provide a kind of fault handling method of virtual special local area network, when relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, as shown in Figure 4, this method comprises:

Step S401, described relaying virtual switch instance send fault notification message to opposite end backbone network assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance;

As shown in Figure 2, during pseudo-lines fault between local terminal backbone network assembly virtual switch instance and relaying virtual switch instance, described relaying virtual switch instance can detect the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance.

Step S402, described opposite end backbone network assembly virtual switch instance receive described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed by the described service instance tag entrained by described fault notification message.

Described local terminal Service Instance assembly virtual switch instance is closed by step S403, described local terminal backbone network assembly virtual switch instance.

Due in the specified context of the embodiment of the present invention, as shown in Figure 2, connection fault between described local terminal backbone network assembly virtual switch instance and relaying virtual switch instance, so described local terminal backbone network assembly virtual switch instance cannot be communicated with opposite end backbone network assembly virtual switch instance, and then described local terminal Service Instance assembly virtual switch instance cannot be connected to opposite end Service Instance assembly virtual switch instance, stop access from the data of Customer Edge router to make local terminal Service Instance assembly virtual switch instance, described local terminal backbone network assembly virtual switch instance sends shutdown command to described local terminal Service Instance assembly virtual switch instance, this shutdown command can control the connectivity port between the closedown of local terminal Service Instance assembly virtual switch instance with Customer Edge router, described local terminal Service Instance assembly virtual switch instance is closed.

In addition, as shown in Figure 5, described relaying virtual switch instance also comprises before sending fault notification message to opposite end backbone network assembly virtual switch instance:

Step S501, described local terminal backbone network assembly virtual switch instance send the service instance tag of described local terminal Service Instance assembly virtual switch instance to described relaying virtual switch instance, and set up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described local terminal backbone network assembly virtual switch instance and described relaying virtual switch instance;

Step S502, described relaying virtual switch instance receive described service instance tag, described service instance tag is forwarded to described opposite end backbone network assembly virtual switch instance, and set up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line be described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance or and opposite end backbone network assembly virtual switch instance between pseudo-line;

After described relaying virtual switch instance sets up the corresponding relation of pseudo-line and described service instance tag, when relaying virtual switch instance receives the packet from local terminal Service Instance assembly virtual switch instance, described relaying virtual switch instance resolution data wraps the entrained field for representing service instance tag, according to the corresponding relation by resolving service instance tag and the pseudo-line known, packet is delivered to opposite end backbone network assembly virtual switch instance by the pseudo-line corresponding with this service instance tag, namely each pseudo-line is equivalent to only for carrying the transmission of the packet carrying the service instance tag with it with corresponding relation.

Possible, all corresponding to a service instance tag, or there is corresponding relation between multiple service instance tag and the pseudo-line of same in many pseudo-lines.

Step S503, described opposite end backbone network assembly receive the described service instance tag that described relaying virtual switch instance sends, and set up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described opposite end backbone network assembly virtual switch instance and described relaying virtual switch instance.

According to foregoing description, when relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, the described relaying virtual switch instance in step S401 sends fault notification message to opposite end backbone network assembly virtual switch instance and is specially:

During pseudo-lines fault between described relaying virtual switch instance and described local terminal backbone network assembly virtual switch instance, described relaying virtual switch instance, according to the corresponding relation of described pseudo-line and described service instance tag, sends fault notification message to described opposite end backbone network assembly virtual switch instance;

Wherein, described fault notification message is for notifying that opposite end backbone network assembly virtual switch instance closes opposite end Service Instance assembly virtual switch instance.

Due in actual use, a relaying virtual switch instance may with multiple backbone network assembly virtual switch instance to being connected, so should according to the corresponding relation of described pseudo-line with described service instance tag when each relaying virtual switch instance sends fault notification message, to a certain backbone network assembly virtual switch instance transmission fault notification message.

When relaying virtual switch instance detects a certain pseudo-lines fault, all corresponding relations that this pseudo-line revocable and each service instance tag exist.

Further, in embodiments of the present invention, described opposite end backbone network assembly virtual switch instance in step S402 receives described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed and is specially by the described service instance tag entrained by described fault notification message:

Described opposite end backbone network assembly virtual switch instance receives the described fault notification message that described relaying virtual switch instance sends, and described opposite end backbone network assembly virtual switch instance is not when existing the corresponding relation of described service instance tag that described fault notification message carries and pseudo-line, described opposite end Service Instance assembly virtual switch instance is closed by described opposite end backbone network assembly virtual switch instance.

When described opposite end backbone network assembly virtual switch instance receives a fault notification message, service instance tag entrained by fault notification message, performs the operation of deleting this service instance tag and the corresponding relation of the pseudo-line of this fault notification message of transmission set up.When there is not the corresponding relation of the service instance tag of certain pair of end Service Instance assembly virtual switch instance and pseudo-line, this opposite end Service Instance assembly virtual switch instance is closed by described opposite end backbone network assembly virtual switch instance.

Similar, local terminal backbone network assembly virtual switch instance often knows a pseudo-lines fault, cancels the corresponding relation of this pseudo-line and service instance tag.When there is not the corresponding relation of a certain service instance tag and arbitrary pseudo-line, the local terminal Service Instance assembly virtual switch instance corresponding to this service instance tag is closed by local terminal backbone network assembly virtual switch instance.

As shown in Figure 2, for a specified context of the embodiment of the present invention, pseudo-lines fault now between local terminal backbone network assembly virtual switch instance and relaying virtual switch instance, relaying virtual switch instance sends the fault notification message carrying local terminal Service Instance assembly virtual switch instance and the common service instance tag of opposite end Service Instance assembly virtual switch instance to opposite end backbone network assembly virtual switch instance, meanwhile, the corresponding relation of the pseudo-line at this service instance tag and relaying virtual switch instance two ends is cancelled.

After opposite end backbone network assembly virtual switch instance receives fault notification message, cancel the corresponding relation of service instance tag entrained by this fault notification message and pseudo-line, the corresponding relation that now there is not service instance tag and arbitrary pseudo-line detected, opposite end Service Instance assembly virtual switch instance is closed.

Owing to only having a data channel be made up of pseudo-line and relaying virtual switch instance between local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance, during pseudo-lines fault between local terminal backbone network assembly virtual switch instance and relaying virtual switch instance, after local terminal backbone network assembly virtual switch instance cancels the corresponding relation of the pseudo-line between service instance tag and relaying virtual switch instance, owing to there is not the corresponding relation of service instance tag and arbitrary pseudo-line, local terminal backbone network assembly virtual switch instance closes local terminal Service Instance assembly virtual switch instance.

As shown in Figure 6, be another specified context of the embodiment of the present invention, between local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance, there are two data channel.

During pseudo-lines fault between local terminal backbone network assembly virtual switch instance and the first relaying virtual switch instance, first relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, and the corresponding relation of the pseudo-line at the service instance tag of cancelling entrained by fault notification message and its two ends.

When opposite end backbone network assembly virtual switch instance receives the fault notification message sent by the first relaying virtual switch instance, opposite end backbone network assembly virtual switch instance cancels the corresponding relation of the pseudo-line between the first relaying virtual switch instance and the service instance tag entrained by fault notification message according to fault notification message, due to the corresponding relation of the service instance tag and pseudo-line that now still there is opposite end Service Instance assembly virtual switch instance, opposite end backbone network assembly virtual switch instance does not close corresponding Service Instance assembly virtual switch instance.

Because local terminal backbone network assembly virtual switch instance detects the fault of the pseudo-line between the first relaying virtual switch instance, local terminal backbone network assembly virtual switch instance cancels the corresponding relation between the service instance tag of this pseudo-line and local terminal Service Instance assembly virtual switch instance, but now local terminal backbone network assembly virtual switch instance still exists the service instance tag of local terminal Service Instance assembly virtual switch instance and the corresponding relation of pseudo-line, then local terminal backbone network assembly virtual switch instance does not close described local terminal Service Instance assembly virtual switch instance.

Further, as shown in Figure 7, pseudo-line between local terminal backbone network assembly virtual switch instance and the second relaying virtual switch instance also fault time, pseudo-lines fault between second relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, carry the fault notification message of this service instance tag so send to opposite end backbone network assembly virtual switch instance, and the second relaying virtual switch instance is cancelled and the corresponding relation of the service instance tag of pseudo-line between the backbone network assembly virtual switch instance of opposite end and opposite end Service Instance assembly virtual switch instance.

After opposite end backbone network assembly virtual switch instance receives the fault notification message sent by the second relaying virtual switch instance, cancel the corresponding relation between the service instance tag of opposite end Service Instance assembly virtual switch instance and pseudo-line, owing to now there is not the corresponding relation between opposite end Service Instance assembly virtual switch instance and pseudo-line, opposite end Service Instance assembly virtual switch instance has been closed by opposite end backbone network assembly virtual switch instance.

Local terminal backbone network assembly virtual switch instance is cancelled and corresponding relation between the pseudo-line of the second relaying virtual switch instance and the service instance tag of local terminal Service Instance assembly virtual switch instance, because the corresponding relation between the service instance tag of local terminal Service Instance assembly virtual switch instance and pseudo-line is all cancelled, local terminal Service Instance assembly virtual switch instance is closed by local terminal backbone network assembly virtual switch instance.

Each local terminal or opposite end backbone network assembly virtual switch instance corresponding with multiple Service Instance assembly virtual switch instance, and each Service Instance assembly virtual switch instance is connected with a Customer Edge router, for carrying out transfer of data with Customer Edge router; In a network, the Service Instance assembly virtual switch instance with same service instance tag exists in pairs, for convenience of description, only there is a local terminal Service Instance assembly virtual switch instance and an opposite end Service Instance assembly virtual switch instance in Fig. 2, Fig. 6 and Fig. 7, and local terminal Service Instance assembly virtual switch instance and opposite end Service Instance assembly virtual switch instance have same service instance tag.

Embodiment three

Embodiments providing a kind of fault handling method of virtual special local area network, as shown in Figure 3, is the specified context of the embodiment of the present invention.

In figure 3, the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router, then, as shown in Figure 8, this method comprises:

Step S801, described local terminal backbone network assembly virtual switch instance know the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router;

During connection fault between described Customer Edge router and local terminal Service Instance assembly virtual switch instance, described local terminal Service Instance assembly virtual switch instance can perceive and cannot be communicated with Customer Edge router, this situation is reported described local terminal backbone network assembly virtual switch instance by described local terminal Service Instance assembly virtual switch instance, then described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router.

Step S802, described local terminal backbone network assembly virtual switch instance send fault notification message to described relaying virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance;

Step S803, described relaying virtual switch instance send fault notification message to opposite end backbone network assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance;

Particularly, in embodiments of the present invention, step S803 is that described virtual switch instance forwards the fault notification message sent by described local terminal backbone network assembly virtual switch instance to described opposite end backbone network assembly virtual switch instance.

Step S804, described opposite end backbone network assembly virtual switch instance receive described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed by the described service instance tag entrained by described fault notification message.

After opposite end backbone network assembly virtual switch instance receives fault notification message, service instance tag entrained by fault notification message, shutdown command is sent to the opposite end Service Instance assembly virtual switch instance corresponding to this service instance tag, this shutdown command can control the connectivity port between opposite end Service Instance assembly virtual switch instance closedown with Customer Edge router, then after opposite end Service Instance assembly virtual switch instance is by port shutdown, the data of Customer Edge router cannot send into virtual special local area network, greatly reduce the waste to resources such as the bandwidth of virtual special local area network.

As shown in Figure 9, described method also comprises:

Described local terminal Service Instance assembly virtual switch instance is closed by step S901, described local terminal backbone network assembly virtual switch instance.

As shown in Figure 3, due to the connection fault between local terminal Service Instance assembly virtual switch instance and Customer Edge router, therefore in order to prevent local terminal Service Instance assembly virtual switch instance from accessing misdata from the connectivity port with Customer Edge router, described local terminal Service Instance assembly virtual switch instance is closed by local terminal backbone network assembly virtual switch instance.

After described relaying virtual switch instance sets up the corresponding relation of pseudo-line and described service instance tag, when relaying virtual switch instance receives the packet from a certain local terminal Service Instance assembly virtual switch instance, described relaying virtual switch instance resolution data wraps the entrained field for representing service instance tag, according to the corresponding relation by resolving service instance tag and the pseudo-line known, packet is delivered to opposite end backbone network assembly virtual switch instance by the pseudo-line corresponding with this service instance tag, namely each pseudo-line is equivalent to only for carrying the transmission of the packet carrying the service instance tag with it with corresponding relation.

Further, in embodiments of the present invention, described opposite end backbone network assembly virtual switch instance in step S804 receives described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed and is specially by the described service instance tag entrained by described fault notification message:

Embodiment four

Embodiments provide a kind of fault handling method of virtual special local area network.

It should be noted that, in embodiments of the present invention, for convenience of description, two backbone network assembly virtual switch instance called after local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance respectively at virtual special local area network two ends will be laid respectively at.

As shown in Figure 10, be a specified context of the embodiment of the present invention, now the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router, then, as shown in figure 11, this method comprises:

Step S1101, described local terminal backbone network assembly virtual switch instance know the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router;

Step S1102, described local terminal backbone network assembly virtual switch instance send fault notification message to described opposite end backbone network assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance;

Step S1103, described opposite end backbone network assembly virtual switch instance receive described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed by the described service instance tag entrained by described fault notification message.

As shown in Figure 9, described method also comprises:

As shown in Figure 10, due to the connection fault between local terminal Service Instance assembly virtual switch instance and Customer Edge router, therefore in order to prevent local terminal Service Instance assembly virtual switch instance from accessing misdata from the connectivity port with Customer Edge router, described local terminal Service Instance assembly virtual switch instance is closed by local terminal backbone network assembly virtual switch instance.

The initial stage is built up in described VPN (virtual private network), described local terminal backbone network assembly virtual switch instance sends the service instance tag of described local terminal Service Instance assembly virtual switch instance to opposite end backbone network assembly virtual switch instance, and set up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described local terminal backbone network assembly virtual switch instance and described opposite end backbone network assembly virtual switch instance.

Described opposite end backbone network assembly sets up the corresponding relation of pseudo-line and described service instance tag after receiving the described service instance tag sent from described local terminal backbone network assembly virtual switch instance.

In general, local terminal Service Instance assembly virtual switch instance and opposite end Service Instance assembly virtual switch instance have common service instance tag.

As shown in figure 12, be another specified context of the embodiment of the present invention, the pseudo-lines fault now between local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance.

Mention above, local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance are backbone network assembly virtual switch instance, during pseudo-lines fault then between local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance, local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance all can detect pseudo-lines fault, now, local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance close local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance respectively.

In the technical scheme of the embodiment of the present invention, when opposite end backbone network assembly virtual switch instance receives fault notification message or described opposite end backbone network assembly virtual switch instance pseudo-lines fault detected, opposite end backbone network assembly virtual switch instance closes the connectivity port between opposite end Service Instance assembly virtual switch instance and Customer Edge router, make opposite end Service Instance assembly virtual switch instance cannot receive the data from connectivity port and send to network, greatly reduce invalid data flows into network possibility from the Service Instance assembly virtual switch instance of opposite end, solve in prior art cannot be communicated with between the backbone network assembly virtual switch instance of two ends or one end Service Instance assembly virtual switch instance cannot be communicated with Customer Edge router time, other end Service Instance assembly virtual switch instance still sends data to the wasting problem of the network bandwidth to network.

Embodiment five

The embodiment of the present invention comprises a kind of local terminal backbone network assembly virtual switch instance, and as shown in figure 13, this local terminal backbone network assembly virtual switch instance comprises:

Local terminal sending module 101, for sending the service instance tag of described local terminal Service Instance assembly virtual switch instance to described opposite end backbone network assembly virtual switch instance or relaying virtual switch instance;

Local terminal sets up module 102, for setting up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described local terminal backbone network assembly virtual switch instance and described opposite end backbone network assembly virtual switch instance or described relaying virtual switch instance;

Local terminal closing module 103, during for detecting that described local terminal backbone network assembly virtual switch instance cannot be communicated with opposite end backbone network assembly virtual switch instance when local terminal backbone network assembly virtual switch instance, described local terminal Service Instance assembly virtual switch instance is closed.

Local terminal backbone network assembly virtual switch instance also comprises:

Local terminal notification module 104, for when described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router, send fault notification message to described opposite end backbone network assembly virtual switch instance;

Wherein, described fault notification message is used for notifying that described opposite end backbone network assembly virtual switch instance closes opposite end Service Instance assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance.

Described local terminal notification module 104 is also for when described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router, and described local terminal backbone network assembly virtual switch instance sends fault notification message to described opposite end backbone network assembly virtual switch instance;

The embodiment of the present invention also comprises a kind of opposite end backbone network assembly virtual switch instance, and as shown in figure 14, this opposite end backbone network assembly virtual switch instance comprises:

Opposite end receiver module 201, for receiving the described service instance tag of described relaying virtual switch instance or the transmission of described local terminal backbone network assembly virtual switch instance;

Module 202 is set up in opposite end, for setting up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described opposite end backbone network assembly virtual switch instance and described local terminal backbone network assembly virtual switch instance or described relaying virtual switch instance.

Opposite end closing module 203, during for receiving fault notification message that relaying virtual switch instance or local terminal backbone network assembly virtual switch instance send when opposite end backbone network assembly virtual switch instance, closes opposite end Service Instance assembly virtual switch instance;

Further, described opposite end closing module 203 specifically for, when described opposite end backbone network assembly virtual switch instance receives the fault notification message of described relaying virtual switch instance or the transmission of described local terminal backbone network assembly virtual switch instance, and described opposite end backbone network assembly virtual switch instance is not when existing the corresponding relation of described service instance tag that described fault notification message carries and pseudo-line, described opposite end Service Instance assembly virtual switch instance is closed.

The embodiment of the present invention also comprises a kind of relaying virtual switch instance, and as shown in figure 15, this device comprises:

Relay reception module 301, for receiving the service instance tag that described local terminal backbone network assembly virtual switch instance sends;

Module 302 set up by relaying, for setting up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described relaying virtual switch instance and described opposite end backbone network assembly virtual switch instance or described local terminal backbone network assembly virtual switch instance.

Relaying sending module 303, for forwarding the described service instance tag from described local terminal backbone network assembly virtual switch instance to described opposite end backbone network assembly virtual switch instance.

Relaying notification module 304, during for the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance being detected when relaying virtual switch instance, described relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, and described fault notification message is for notifying that opposite end backbone network assembly virtual switch instance closes opposite end Service Instance assembly virtual switch instance;

Further, described relaying notification module 304 specifically for:

During pseudo-lines fault between described relaying virtual switch instance and described local terminal backbone network assembly virtual switch instance, according to the corresponding relation of described pseudo-line and described service instance tag, fault notification message is sent to described opposite end backbone network assembly virtual switch instance, wherein, described fault notification message is used for notifying that described opposite end backbone network assembly virtual switch instance closes described opposite end Service Instance assembly virtual switch instance;

Or forward by the fault notification message of described local terminal backbone network assembly virtual switch instance transmission to described opposite end backbone network assembly virtual switch instance, wherein, described fault notification message is used for notifying that described opposite end backbone network assembly virtual switch instance closes described opposite end Service Instance assembly virtual switch instance.

After described local terminal backbone network assembly virtual switch instance and relaying virtual switch instance or opposite end backbone network assembly virtual switch instance couple together by pseudo-line, described local terminal sending module 101 sends the service instance tag of described local terminal Service Instance assembly virtual switch instance to described opposite end backbone network assembly virtual switch instance or relaying virtual switch instance, simultaneously, described local terminal sets up the corresponding relation that module 102 sets up pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described local terminal backbone network assembly virtual switch instance and described opposite end backbone network assembly virtual switch instance or described relaying virtual switch instance.

Further, if the downstream network element of local terminal backbone network assembly virtual switch instance is relaying virtual switch instance, after the receiver module 301 of described relaying virtual switch instance receives the service instance tag from local terminal backbone network assembly virtual switch instance, describedly set up the corresponding relation that module 302 sets up pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described relaying virtual switch instance and described local terminal backbone network assembly virtual switch instance.Afterwards, described sending module 303 forwards from the described service instance tag of described local terminal backbone network assembly virtual switch instance to described opposite end backbone network assembly virtual switch instance.

Further, after described opposite end backbone network assembly virtual switch instance receives the described service instance tag of described relaying virtual switch instance or the transmission of described local terminal backbone network assembly virtual switch instance, the corresponding relation that module 202 sets up pseudo-line and described service instance tag is set up in opposite end, and described pseudo-line is the pseudo-line between described opposite end backbone network assembly virtual switch instance and described local terminal backbone network assembly virtual switch instance or described relaying virtual switch instance.

As shown in Figure 2, for first specified context of the embodiment of the present invention, during pseudo-lines fault between local terminal backbone network assembly virtual switch instance and relaying virtual switch instance, described relaying virtual switch instance can detect the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance.

When relaying virtual switch instance does not receive the detection messages from local terminal backbone network assembly virtual switch instance after some period of time yet, pseudo-lines fault between the known relaying virtual switch instance of relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, then the notification module 304 of relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance, afterwards, described relaying virtual switch instance cancels the pseudo-line of fault and the corresponding relation of service instance tag.

Now, the opposite end receiver module of described opposite end backbone network assembly virtual switch instance receives the described fault notification message from described relaying virtual switch instance, opposite end backbone network assembly virtual switch instance cancels the corresponding relation between the service instance tag of opposite end Service Instance assembly virtual switch instance and pseudo-line, owing to now there is not the corresponding relation between opposite end Service Instance assembly virtual switch instance and pseudo-line, opposite end Service Instance assembly virtual switch instance has been closed by opposite end closing module 203.

Similar, local terminal backbone network assembly virtual switch instance often knows a pseudo-lines fault, cancels the corresponding relation of this pseudo-line and service instance tag.When there is not the corresponding relation of a certain service instance tag and arbitrary pseudo-line, the local terminal Service Instance assembly virtual switch instance corresponding to this service instance tag is closed by local terminal closing module 103.

As shown in Figure 6, be second specified context of the embodiment of the present invention, in this specified context, between local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance, there are two data channel.

During pseudo-lines fault between local terminal backbone network assembly virtual switch instance and the first relaying virtual switch instance, the notification module 304 of the first relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, and described first relaying virtual switch instance cancels the corresponding relation of the pseudo-line at service instance tag entrained by fault notification message and its two ends.

When opposite end backbone network assembly virtual switch instance receives the fault notification message sent by the first relaying virtual switch instance, opposite end backbone network assembly virtual switch instance cancels the corresponding relation of the pseudo-line between the first relaying virtual switch instance and the service instance tag entrained by fault notification message according to fault notification message, due to the corresponding relation of the service instance tag and pseudo-line that now still there is opposite end Service Instance assembly virtual switch instance, opposite end closing module 203 does not close corresponding Service Instance assembly virtual switch instance.

Because local terminal backbone network assembly virtual switch instance detects the fault of the pseudo-line between the first relaying virtual switch instance, local terminal backbone network assembly virtual switch instance cancels the corresponding relation between the service instance tag of this pseudo-line and local terminal Service Instance assembly virtual switch instance, but now local terminal backbone network assembly virtual switch instance still exists the service instance tag of local terminal Service Instance assembly virtual switch instance and the corresponding relation of pseudo-line, then local terminal closing module 103 does not close described local terminal Service Instance assembly virtual switch instance.

Further, as shown in Figure 7, pseudo-line between local terminal backbone network assembly virtual switch instance and the second relaying virtual switch instance also fault time, pseudo-lines fault between second relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, so the notification module 304 of described second relaying virtual switch instance sends the fault notification message of carrying this service instance tag to opposite end backbone network assembly virtual switch instance, and the second relaying virtual switch instance is cancelled and the corresponding relation of the service instance tag of pseudo-line between the backbone network assembly virtual switch instance of opposite end and opposite end Service Instance assembly virtual switch instance.

After opposite end backbone network assembly virtual switch instance receives the fault notification message sent by the second relaying virtual switch instance, cancel the corresponding relation between the service instance tag of opposite end Service Instance assembly virtual switch instance and pseudo-line, owing to now there is not the corresponding relation between opposite end Service Instance assembly virtual switch instance and pseudo-line, opposite end Service Instance assembly virtual switch instance has been closed by opposite end closing module 203.

Local terminal backbone network assembly virtual switch instance is cancelled and corresponding relation between the pseudo-line of the second relaying virtual switch instance and the service instance tag of local terminal Service Instance assembly virtual switch instance, because the corresponding relation between the service instance tag of local terminal Service Instance assembly virtual switch instance and pseudo-line is all cancelled, local terminal backbone network assembly virtual switch instance notice local terminal Service Instance assembly virtual switch instance is closed.

As shown in Figure 3, for the 3rd specified context of the embodiment of the present invention, during connection fault between described Customer Edge router and local terminal Service Instance assembly virtual switch instance, described local terminal Service Instance assembly virtual switch instance can perceive and cannot be communicated with Customer Edge router, this situation is reported described local terminal backbone network assembly virtual switch instance by described local terminal Service Instance assembly virtual switch instance, then described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router.

Due to the connection fault between local terminal Service Instance assembly virtual switch instance and Customer Edge router, therefore in order to prevent local terminal Service Instance assembly virtual switch instance from accessing misdata from the connectivity port with Customer Edge router, described local terminal Service Instance assembly virtual switch instance is closed by local terminal closing module 103, further, local terminal notification module 104 sends fault notification message to virtual switch instance.

Relaying virtual switch instance is after receiving the fault notification message from local terminal backbone network assembly virtual switch instance, the notification module 304 of relaying virtual switch instance forwards the fault notification message from local terminal backbone network assembly virtual switch instance to opposite end backbone network assembly virtual switch instance, described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance, afterwards, described relaying virtual switch instance cancels the pseudo-line of fault and the corresponding relation of service instance tag.

In above-mentioned three embodiments, the relaying virtual switch instance in embodiment is in virtual special local area network, and tunable sends the packet of multipair Service Instance assembly virtual switch instance, is generally used for net structure comparatively under complicated situation.

It should be noted that, in embodiments of the present invention, for convenience of description, pseudo-line will be detected or be connected fault end with Customer Edge router and be defined as local terminal backbone network assembly virtual switch instance, and carry out next step operating side according to the fault notification message received and be defined as opposite end backbone network assembly virtual switch instance.In the virtual special local area network of reality, the effect of local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance, operation, authority are identical, or can be described as the consolidated network equipment being positioned at virtual special local area network two ends.

When the structure of virtual special local area network is comparatively simple, such as now only have a pair Service Instance assembly virtual switch instance, then local terminal Service Instance assembly virtual switch instance and opposite end Service Instance assembly can be connected by the pseudo-line between local terminal backbone network assembly virtual switch instance, opposite end backbone network assembly virtual switch instance and two backbone network assembly virtual switch instance, transmission is from the packet of Customer Edge router mutually.

Then, under this specified context,

When the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router,

Described local terminal Service Instance assembly virtual switch instance can perceive and cannot be communicated with Customer Edge router, this situation is reported described local terminal backbone network assembly virtual switch instance by described local terminal Service Instance assembly virtual switch instance, then described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router.

When described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router, the local terminal notification module 104 of described local terminal backbone network assembly virtual switch instance sends fault notification message to described opposite end backbone network assembly virtual switch instance.

When opposite end backbone network assembly virtual switch instance receives the fault notification message of relaying virtual switch instance or the transmission of local terminal backbone network assembly virtual switch instance, opposite end Service Instance assembly virtual switch instance is closed by described opposite end closing module 203.

Further, local terminal closing module 103 closes local terminal Service Instance assembly virtual switch instance to the connectivity port of Customer Edge router.

In addition, during pseudo-lines fault between local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance,

Local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance are backbone network assembly virtual switch instance, during pseudo-lines fault then between local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance, local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance all can detect pseudo-lines fault, now, local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance close local terminal backbone network assembly virtual switch instance and opposite end backbone network assembly virtual switch instance respectively.

The embodiment of the present invention also provides a kind of fault processing system of virtual special local area network, comprises above-mentioned local terminal backbone network assembly virtual switch instance, above-mentioned opposite end backbone network assembly virtual switch instance and above-mentioned relaying virtual switch instance.

In the technical scheme of the present embodiment, when relaying virtual switch instance detects the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance, or when described relaying virtual switch instance knows the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router, described relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, receive the connectivity port between the opposite end backbone network assembly virtual switch instance closedown opposite end Service Instance assembly virtual switch instance of fault notification message and Customer Edge router, make opposite end Service Instance assembly virtual switch instance cannot receive the data from connectivity port and send to network, greatly reduce invalid data flows into network possibility from the Service Instance assembly virtual switch instance of opposite end, solve in prior art cannot be communicated with between the backbone network assembly virtual switch instance of two ends or one end Service Instance assembly virtual switch instance cannot be communicated with Customer Edge router time, other end Service Instance assembly virtual switch instance still sends data to the wasting problem of the network bandwidth to net network.

Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily 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 the protection range of described claim.

Claims

1. a fault handling method for virtual special local area network, is characterized in that, comprising:

Or

Described opposite end backbone network assembly virtual switch instance receives described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed by the described service instance tag entrained by described fault notification message;

Wherein, described relaying virtual switch instance also comprises before sending fault notification message to opposite end backbone network assembly virtual switch instance:

Described local terminal backbone network assembly virtual switch instance sends the service instance tag of described local terminal Service Instance assembly virtual switch instance to described relaying virtual switch instance, and set up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described local terminal backbone network assembly virtual switch instance and described relaying virtual switch instance;

Described relaying virtual switch instance receives described service instance tag, described service instance tag is forwarded to described opposite end backbone network assembly virtual switch instance, and set up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line be described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance or and opposite end backbone network assembly virtual switch instance between pseudo-line;

Described opposite end backbone network assembly receives the described service instance tag that described relaying virtual switch instance sends, and set up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described opposite end backbone network assembly virtual switch instance and described relaying virtual switch instance;

Described opposite end backbone network assembly virtual switch instance receives described fault notification message, and described opposite end Service Instance assembly virtual switch instance is closed and is specially by the described service instance tag entrained by described fault notification message:

2. method according to claim 1, is characterized in that, also comprises:

When described local terminal backbone network assembly virtual switch instance detects that described local terminal backbone network assembly virtual switch instance cannot be communicated with described opposite end backbone network assembly virtual switch instance, described local terminal Service Instance assembly virtual switch instance is closed.

3. method according to claim 1, is characterized in that, described relaying virtual switch instance knows that the connection fault of local terminal Service Instance assembly virtual switch instance and Customer Edge router is specially:

Described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router;

Described local terminal backbone network assembly virtual switch instance sends fault notification message to described relaying virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance.

4. method according to claim 1, is characterized in that, described relaying virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance and is specially:

Or described relaying virtual switch instance forwards the fault notification message sent by described local terminal backbone network assembly virtual switch instance to described opposite end backbone network assembly virtual switch instance;

Wherein, described fault notification message is used for notifying that described opposite end backbone network assembly virtual switch instance closes described opposite end Service Instance assembly virtual switch instance.

5. method according to claim 1, is characterized in that, also comprises:

When described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router, described local terminal backbone network assembly virtual switch instance sends fault notification message to opposite end backbone network assembly virtual switch instance, described fault notification message is for notifying that opposite end backbone network assembly virtual switch instance closes opposite end Service Instance assembly virtual switch instance, described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance.

6. a local terminal backbone network assembly virtual switch instance, is characterized in that, comprising:

Local terminal closing module, during for detecting that described local terminal backbone network assembly virtual switch instance cannot be communicated with opposite end backbone network assembly virtual switch instance when local terminal backbone network assembly virtual switch instance, described local terminal Service Instance assembly virtual switch instance is closed;

When described local terminal closing module is not specifically for existing the corresponding relation of the service instance tag of local terminal Service Instance assembly virtual switch instance and pseudo-line, described local terminal Service Instance assembly virtual switch instance is closed;

Described local terminal backbone network assembly virtual switch instance also comprises:

Local terminal sending module, for sending the service instance tag of described local terminal Service Instance assembly virtual switch instance to described opposite end backbone network assembly virtual switch instance or relaying virtual switch instance;

Local terminal sets up module, for setting up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described local terminal backbone network assembly virtual switch instance and described opposite end backbone network assembly virtual switch instance or described relaying virtual switch instance;

Local terminal notification module, for when described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router, send fault notification message to described relaying virtual switch instance or described opposite end backbone network assembly virtual switch instance;

7. local terminal backbone network assembly virtual switch instance according to claim 6, is characterized in that,

Described local terminal closing module is also for when described local terminal backbone network assembly virtual switch instance knows the connection fault of described local terminal Service Instance assembly virtual switch instance and Customer Edge router, and described local terminal backbone network assembly virtual switch instance sends fault notification message to described opposite end backbone network assembly virtual switch instance;

Wherein, described fault notification message is for notifying that opposite end backbone network assembly virtual switch instance closes opposite end Service Instance assembly virtual switch instance, and described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of described opposite end Service Instance assembly virtual switch instance.

8. an opposite end backbone network assembly virtual switch instance, is characterized in that, comprising:

Wherein, described fault notification message carries local terminal Service Instance assembly virtual switch instance and the common service instance tag of opposite end Service Instance assembly virtual switch instance;

Described opposite end backbone network assembly virtual switch instance also comprises:

Opposite end receiver module, for receiving the described service instance tag of described relaying virtual switch instance or the transmission of described local terminal backbone network assembly virtual switch instance;

Module is set up in opposite end, for setting up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described opposite end backbone network assembly virtual switch instance and described local terminal backbone network assembly virtual switch instance or described relaying virtual switch instance;

Described opposite end closing module specifically for, when described opposite end backbone network assembly virtual switch instance receives the fault notification message of described relaying virtual switch instance or the transmission of described local terminal backbone network assembly virtual switch instance, and described opposite end backbone network assembly virtual switch instance is not when existing the corresponding relation of described service instance tag that described fault notification message carries and pseudo-line, described opposite end Service Instance assembly virtual switch instance is closed.

9. a relaying virtual switch instance, is characterized in that, comprising:

Relaying notification module, during for the pseudo-lines fault between described relaying virtual switch instance and local terminal backbone network assembly virtual switch instance being detected when described relaying virtual switch instance, send fault notification message to opposite end backbone network assembly virtual switch instance, described fault notification message is for notifying that opposite end backbone network assembly virtual switch instance closes opposite end Service Instance assembly virtual switch instance;

Wherein, described fault notification message carries described local terminal Service Instance assembly virtual switch instance and the common service instance tag of opposite end Service Instance assembly virtual switch instance;

Described relaying virtual switch instance also comprises:

Relay reception module, for receiving the service instance tag of opposite end backbone network assembly virtual switch instance or the transmission of described local terminal backbone network assembly virtual switch instance;

Module set up by relaying, for setting up the corresponding relation of pseudo-line and described service instance tag, described pseudo-line is the pseudo-line between described relaying virtual switch instance and described opposite end backbone network assembly virtual switch instance or described local terminal backbone network assembly virtual switch instance;

Described relaying notification module specifically for,

10. the fault processing system of a virtual special local area network, it is characterized in that, comprise local terminal backbone network assembly virtual switch instance, opposite end according to claim 8 backbone network assembly virtual switch instance and the relaying virtual switch instance according to claim 9 described in any one of claim 6 to 7.