CN104301153A - AVF allocation method in TRILL network and RB equipment - Google Patents
AVF allocation method in TRILL network and RB equipment Download PDFInfo
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Abstract
The invention provides an AVF allocation method in a TRILL network and RB equipment. The method includes the steps that the RB equipment detects that an uplink breaks down; the RB equipment deletes stored AVFs which the RB equipment takes charge in, and sends a Hello message to designated route bridge (DRB) equipment, and enabling VLAN information and AVF VLAN information included in the Hello message are empty, so that the DRB allocates the AVFs which the RB equipment takes charge in to other RB equipment according to the Hello message.
Description
Technical field
The present invention relates to TRILL network technology, particularly the distribution method of AVF and RB equipment in a kind of TRILL network.
Background technology
Multilink transparent interconnection (Transparent Interconnection of Lots of Links, be called for short: TRILL) be the L2 network standard that IETF recommends, TRILL network comprises each routing bridge (the Routing Bridge supporting TRILL protocol, be called for short: RB) equipment, appointment routing bridge (Designated Routing Bridge wherein, be called for short: DRB) be responsible for VLAN distribution assigned vlan and turn originator (Appointed VLAN-x Forwarder, abbreviation: AVF).Such as, the corresponding A VF of certain VLAN (supposing VLAN 10) is certain RB (supposing RB5) as access device be connected with local network, so all local flow of VLAN10 is all pass in and out TRILL network by RB5, the flow of the VLAN10 in TRILL network is sent to local network by its down link by RB5, and the flow of the VLAN10 in local network is mail to TRILL network by its up link.But a kind of situation that may occur in current technology is that RB5 remains the AVF of VLAN10, but the up link of RB5 breaks down and cannot receive and dispatch the VLAN10 flow of TRILL network, thus causes service disconnection.
Summary of the invention
In view of this, the invention provides distribution method and the RB equipment of AVF in a kind of TRILL network, to recover service operation in time when RB fault.
Particularly, the present invention is achieved through the following technical solutions:
First aspect, provides the distribution method of AVF in a kind of TRILL network, and the access link of wherein this network comprises multiple access device RB, and have one to be designated as DRB equipment in described RB, method comprises:
RB equipment Inspection is broken down to up link;
The AVF that the described RB equipment that described RB unit deletion stores is responsible for, and send hello packet to appointment routing bridge DRB equipment, the enable vlan information that described hello packet comprises and AVF vlan information are sky, according to described hello packet, the AVF that described RB equipment is responsible for are distributed to other RB equipment to make described DRB.
Second aspect, provides the distribution method of AVF in a kind of TRILL network, the access link of wherein this network comprises multiple access device RB, has one to be designated as DRB equipment, comprising in described RB:
Specify routing bridge DRB equipment to receive the hello packet of RB equipment transmission, the enable vlan information that described hello packet comprises and AVF vlan information are sky;
The AVF that described RB equipment is responsible for is distributed to other RB equipment by described DRB equipment.
The third aspect, provides a kind of RB equipment, and wherein this RB equipment is one of them access device RB on the access link of TRILL network, and the another one in each access device RB in this network is designated as DRB equipment, and this RB equipment comprises:
Detection module, for detecting that up link breaks down;
Processing module, for when described detection module detects that up link breaks down, the AVF that the described RB equipment deleting storage is responsible for;
Sending module, for when described detection module detects that up link breaks down, hello packet is sent to appointment routing bridge DRB equipment, the enable vlan information that described hello packet comprises and AVFVLAN information are sky, according to described hello packet, the AVF that described RB equipment is responsible for are distributed to other RB equipment to make described DRB.
Fourth aspect, provides a kind of DRB equipment, wherein this DRB equipment be TRILL network access link on each access device RB in be designated as the equipment of DRB, the access link in this network comprises multiple access device RB; This DRB equipment comprises:
Receiver module, for receiving the hello packet that RB equipment sends, the enable vlan information that described hello packet comprises and AVF vlan information are sky;
Distribution module, when being empty described hello packet for receiving enable vlan information at described receiver module, distributes to other RB equipment by the AVF that described RB equipment is responsible for.
The distribution method of AVF and RB equipment in the TRILL network that the embodiment of the present invention provides, by when RB equipment Inspection is to uplink failure, change the content of the hello packet sent, enable vlan information is set to sky, trigger DRB and redistribute AVF, thus recover service operation in time when RB fault.
Accompanying drawing explanation
Fig. 1 is the TRILL network configuration diagram that the embodiment of the present invention provides;
Fig. 2 is the flow chart of the distribution method of AVF in a kind of TRILL network of providing of the embodiment of the present invention;
Fig. 3 is the flow chart of the distribution method of AVF in the another kind of TRILL network that provides of the embodiment of the present invention;
Fig. 4 is the flow chart of the distribution method of AVF in another TRILL network of providing of the embodiment of the present invention;
Fig. 5 is the application structure figure mono-of the distribution method of AVF in the TRILL network that provides of the embodiment of the present invention;
Fig. 6 is the application structure figure bis-of the distribution method of AVF in the TRILL network that provides of the embodiment of the present invention;
Fig. 7 is the flow chart of the distribution method of AVF in another TRILL network of providing of the embodiment of the present invention;
Fig. 8 is the structure chart of the RB equipment that the embodiment of the present invention provides;
Fig. 9 is the entity structure diagram of the RB equipment that the embodiment of the present invention provides;
Figure 10 is the structure chart of the DRB equipment that the embodiment of the present invention provides;
Figure 11 is the entity structure diagram of the DRB equipment that the embodiment of the present invention provides.
Embodiment
Fig. 1 is the TRILL network configuration diagram that the embodiment of the present invention provides, as shown in Figure 1, RB4, RB5 in TRILL network are connected with local network 1 by general switch 11 with RB6, as access RB equipment (Ingress RB), be namely the edge RB that the Layer 2 data frame of local network 1 enters TRILL network.Suppose that RB4 is DRB, this DRB is responsible between RB4, RB5 and RB6, distribute AVF VLAN, can be forwarded to make the flow of each VLAN in local network 1 by these three RB.
Be easier to understand to make the distribution of the follow-up AVF to the embodiment of the present invention, be simply described as follows the process that lower AVF between RB4, RB5 and RB6 distributes, mutual between RB4 and RB5, the distribution of AVF is realizing alternately by hello packet.
Wherein, the hello packet that RB5 sends to the RB4 as DRB, may be used for the enable VLAN reporting oneself.As shown in Figure 1, RB4 with RB5 is connected the up link of leading to TRILL network and the down link leading to local network 1 separately respectively, it is that the hello packet that the down link (also can be called access link) be connected with local network 1 by RB4 with RB5 shown in Fig. 1 is sent carries out, namely at the trill access port assignment AVF of RB4 and RB5 that the AVF of the present embodiment distributes.Wherein, RB5 has oneself enable VLAN, this enable VLAN is equivalent to a kind of ability of RB5 self, namely show that this RB5 can forward the ability of which vlan traffic, the enable VLAN such as configured on the down link of RB5 comprises: VLAN10, VLAN20 and VLAN30, shows that RB5 can forward the flow of these VLAN.RB5, in the hello packet sent to RB4, can carry its enable VLAN by Enabled-VLANs Sub-TLV, report the ability of oneself to DRB.In like manner, the enable VLAN of oneself also can be informed DRB by hello packet by RB6, and DRB also has oneself enable VLAN.
And the hello packet that RB4 sends to RB5, may be used for DRB and distribute AVF.Such as, DRB is by the ability of comprehensive RB4, RB5 and RB6, above-mentioned VLAN is distributed in each RB equipment, the all local flow of each VLAN must go out from the same port same RB, enters TRILL network, if certain VLAN is distributed to certain RB by DRB, then this RB is called the AVF of this VLAN, and corresponding port is called designated port, and the VLAN that DRB is this RB distribution can be called AVF VLAN; Namely the concept of enable VLAN and the AVF VLAN of RB is the same port based on RB, if RB5 has multiple downlink port, each enable VLAN may be different, and the AVF VLAN be assigned to also may be different.Such as, VLAN10 is distributed to the downlink port of RB5 by DRB, then RB5 is called the AVF of VLAN10.After DRB distributes AVF, in the hello packet that follow-up RB5 sends, except carrying enable VLAN, the AVF VLAN of DRB distribution can also be carried (wherein, this AVF VLAN can be carried by the Appointed Forwarders Sub-TLV in hello packet), this AVF VLAN and RB4 distributes to the VLAN10 of RB5.Further, can regular mutual hello packet between DRB and RB5.
Based on above-mentioned, the distribution of AVF in the TRILL network that the embodiment of the present invention describes, namely the RB4 as DRB is that certain VLAN reassigns new RB equipment, the AVF of such as VLAN10 is RB5 at first, VLAN10 will be distributed to RB6 by present DRB, that RB6 will become the AVF of VLAN10, and the flow of VLAN10 will forward from RB6.Concrete, how the distribution of the AVF of the embodiment of the present invention, trigger DRB when will be described in RB equipment fault and redistribute AVF, and in this TRILL network, the flow process of the distribution method of AVF can see Fig. 2, the method be with certain access device RB for executive agent, comprising:
201, RB equipment Inspection is broken down to up link;
Wherein, the uplink failure of this RB equipment, equipment self can detect, fault detection approach can adopt existing Through Several Survey Measure, no longer describes in detail.
202, the AVF that the described RB equipment that RB unit deletion stores is responsible for, and send hello packet to appointment routing bridge DRB equipment, the enable vlan information that described hello packet comprises and AVF vlan information are sky, according to described hello packet, the AVF that described RB equipment is responsible for are distributed to other RB equipment to make described DRB.
Wherein, this RB equipment of uplink failure detected, send hello packet to DRB.The present embodiment, changes the content of hello packet, and namely after the uplink failure of this RB equipment, the enable vlan information in message is just set to sky by RB, no longer carries the enable VLAN of oneself.Further, RB equipment also deletes the AVF vlan information that original DRB distributes, and the AVFVLAN information in hello packet is also set to sky.
Such DRB, according to the hello packet after change, can determine that RB equipment there occurs fault, and be not provided with the ability forwarding vlan traffic, the DRB that can set out redistributes AVF.
Further, described method also comprises:
When described RB equipment Inspection recovers normal to the described up link of fault; Described RB equipment sends hello packet to described DRB equipment, and described hello packet comprises the enable vlan information of described RB equipment.
In addition, when the quantity of described up link is multiple, described RB equipment Inspection is broken down to up link, is specially: described RB equipment Inspection is all broken down to all up links.
In this TRILL network, the flow process of the another kind of distribution method of AVF can also see Fig. 3, the method shown in this Fig. 3 be with DRB equipment for executive agent, comprising:
301, DRB equipment receives the hello packet that RB equipment sends, and the enable vlan information that described hello packet comprises and AVF vlan information are sky;
Wherein, DRB, after receiving message, finds that the content in this message there occurs change, and enable vlan information and AVF vlan information are sky, and DRB can determine that RB equipment has lost the transfer capability of vlan traffic accordingly.
302, the AVF that described RB equipment is responsible for is distributed to other RB equipment by DRB equipment.
Further, after the AVF that described RB equipment is responsible for is distributed to other RB equipment by described DRB equipment, also comprise:
Described DRB equipment receives the hello packet of described RB equipment transmission when detecting that the up link of fault is recovered normal, and described hello packet comprises the enable vlan information of described RB equipment;
Described DRB equipment, according to described enable vlan information, re-starts the distribution of AVF.
For making those skilled in the art clearly with clear, below still for Fig. 1, the process that AVF redistributes is described more specifically.Suppose that the up link of RB5 breaks down, be initially allocated to the flow interrupt of the VLAN10 of RB5, on this basis, will the process redistributed of AVF be described in detail as follows:
The handling process that Fig. 4 carries out when illustrating RB5 fault, comprising:
401, RB5 detects uplink failure;
Wherein, the up link of RB5 can be the link between RB5 and the RB2 shown in Fig. 1.RB5 detects the fault of this link, can adopt the Link State testing mechanism of some routines, detects (Bidirectional Forwarding Detection, abbreviation: BFD) mode detects uplink failure as by two-way converting.In the present embodiment, when namely the link-state change of up link breaks down, the message content in the hello packet that the change of correspondence sends at down link by RB5, knows the fault of RB5 to make DRB in time according to the change of this message content.
Down link is known to the mode of uplink link status, such as, the track item for up link can be configured on the down link of RB5, detect the track state variation of up link.The purposes of Track realizes linkage function, linkage function is by monitoring modular (monitoring Link State), be associated between Track module and application module (transmission of the hello packet of such as the present embodiment), realize the teamwork between these modules, and Track module can shield the difference of different monitoring modular, simplify the process of application module.In the present embodiment, down link is set can knows that up link breaks down in time by track item, and respective handling can be made according to this state variation, this process and following 402.
402, RB5 sends hello packet to RB4, and the enable vlan information in message is empty;
In the present embodiment, after RB5 detects its uplink failure in 401, the transmission of hello packet on down link will be triggered at once, and, the enable vlan information carried in this hello packet is for empty, and the Enabled-VLANs Sub-TLV namely in message is empty.
Wherein, the enable VLAN of RB5 can be pre-configured on this RB5 equipment, when RB5 normally works, can carry the information of this enable VLAN in its hello packet regularly sent to the RB4 as DRB, and the present embodiment is when the uplink failure of RB5, RB5 no longer will carry this enable vlan information in hello packet, but, it should be noted that, RB5 remains and knows its enable VLAN, just no longer carries in hello packet.
403, RB4 redistributes the AVF that RB5 is responsible for;
Wherein, RB4 can know the change of the ability of RB5 after receiving the hello packet of RB5 transmission according to this message.Concrete, VLAN10, when initially carrying out AVF and distributing, is such as distributed to RB5, makes RB5 become the AVF of VLAN10 by RB4, RB4 will record this AVF information (corresponding relation of RB5 and VLAN10), and namely RB4 can record and which RB equipment which VLAN has been assigned to.So, in this step, when RB4 receives the hello packet of RB5 transmission, because the Enabled-VLANsSub-TLV in message is empty, show that RB5 has not possessed the ability forwarding any vlan traffic, accordingly, the ability forwarding and be initially allocated to the flow of the VLAN10 of RB5 is not just possessed yet, therefore, VLAN10 will redistribute by RB4, namely reassigns the AVF of other RB equipment as VLAN10.
In the present embodiment, suppose that the AVF VLAN that RB5 is responsible for comprises: VLAN10, VLAN20 and VLAN30, then these three VLAN will redistribute by this RB4.Optional a kind of mode is, VLAN10 is distributed to oneself down link by RB4, VLAN20 and VLAN30 is distributed to RB6; Namely redistribute through AVF, jointly shared the responsible vlan traffic of original RB5 by RB4 and RB6.
404, the change of RB4 process AVF;
In this step, due to RB4 for oneself is assigned with VLAN10, become the AVF of VLAN10, the down link for oneself is added the AVF information of VLAN10 by RB4, and the AVF VLAN namely recording oneself is VLAN10; And RB4 is by calculating the forwarding-table item of this VLAN10, for follow-up traffic forwarding.
405, RB4 sends hello packet, carries AVF allocation result in this message;
It should be noted that, the present embodiment does not limit the execution sequence of 405 and 404, and the process of such as these two steps can be carried out simultaneously.Wherein, AVF allocation result in hello packet, namely " VLAN10 is distributed to oneself down link by RB4; VLAN20 and VLAN30 is distributed to RB6 " described in above-mentioned 403, the RB4 namely as DRB needs to be that the AVF that VLAN10, VLAN20 and VLAN30 reassign informs to each RB equipment by oneself.Such as, when RB6 receives this hello packet, it just can know that it is using the AVF as VLAN20 and VLAN30.
In addition, RB4, when sending hello packet, can be that RB5 and RB6 sends, and RB5, when receiving hello packet, can find that RB4 does not distribute AVF to oneself, then not process.
406, the change of RB6 process AVF.
With 404 in similar, RB6 adds the AVF information of VLAN20 and VLAN30 at the down link of oneself, and calculates the forwarding-table item of corresponding VLAN, for traffic forwarding.
The distribution method of AVF in the TRILL network of the present embodiment, the content of hello packet is changed when fault by arranging RB equipment, DRB can be triggered in time receiving this message and redistribute AVF, make the flow of corresponding VLAN from other RB equipment, normally can send TRILL network or receive the flow of TRILL network, thus ensure that normally carrying out of traffic forwarding business.
Optionally, under the scene in FIG, the up link of the RB5 broken down only has one, the link namely between RB5 and RB2, and in practical application, the quantity of the up link of RB also may have multiple, than as shown in Figure 5.The up link of leading to TRILL network of RB5 can comprise three, and comprising: the link A between RB5 and RB2, the link B between RB5 and RB9, the link C between RB5 and RB10, and suppose that the down link of RB5 only has one, is link D.
The situation of this many up links, can on the down link of RB5 assignment configuration for the track item of each up link, for detecting the state variation of every bar up link respectively; And being set as, when detecting that all up links all break down, then triggering the renewal of the hello packet on down link D, namely all fault sends enable vlan information to all up links is again empty hello packet.And if in many up links, only have part of links to break down, so only need this RB5 to recalculate forwarding-table item, and then redefine the forward-path of flow, under this situation, do not need enable vlan information to be that empty hello packet is to DRB4.
Optionally, Fig. 6 shows another kind of application network structure, the down link of RB5 and up link are all many, such as illustrate on the basis of structure at Fig. 5, RB5 is also connected with another down link E, and link D and link E is the AVF of different VLAN respectively, such as, the AVF VLAN of link D is VLAN10, the AVF VLAN of link E is VLAN50, so for each down link, process similar in above-mentioned Fig. 5 can be carried out, on every bar down link, assignment configuration is for the track item of each up link, when all up links, all fault sends enable vlan information is again empty hello packet, AVF is redistributed to trigger the VLAN that DRB is correspondence.Equally, in this configuration, when having part of links to break down in many up links, RB5 recalculates forwarding-table item, if and have part down link to break down, because now this link regularly cannot send hello packet, therefore DRB can perceive this fault, thus DRB will redistribute AVF, the VLAN of this fault down link will be assigned to other links or other RB equipment.
In addition, suppose that DRB self there occurs fault, a kind of situation is that the up link of DRB oneself breaks down, and so DRB can perceive, and carries out AVF and redistribute; Another kind of situation is that the down link of DRB breaks down, and now DRB regularly cannot send hello packet, and other RB equipment do not receive this hello packet in Preset Time, therefore can determine DRB fault, will re-elect DRB.The mode of election DRB can adopt usual manner, such as elects according to priority; In addition, because the hello packet carrying enable VLAN is that multicast sends, other RB equipment also can get the enable vlan information of each RB in network, then the DRB equipment after re-electing will redistribute AVF according to this enable vlan information.
In the present embodiment, when RB equipment Inspection is to after up link breaks down, also need to delete the AVF information stored, and the AVF vlan information corresponding with this AVF information that hello packet comprises is for empty.Such as, in the present embodiment, after the DRB VLAN10 that has been RB5 original allocation, RB5 receive DRB send comprise the hello packet of above-mentioned AVF allocation result time, not only on the down link of oneself, configure this AVF information, and this AVF information can be recorded, namely record oneself the AVF VLAN that is responsible for be VLAN10, meanwhile, RB5 also can carry this AVF vlan information (certainly also can carry enable VLAN) in the regular hello packet sent to DRB; So corresponding, the present embodiment RB5 is when breaking down, also need the AVF information of deleting this record, in the hello packet sent, no longer carry AVF vlan information simultaneously, namely in hello packet, the enable VLAN of RB5 had both no longer been carried, DRB AVF VLAN in batches when simultaneously also can not carry initial again.
Shown in composition graphs 1, when RB5 deletes the AVF information of original distribution on its down link, the process of this deletion can be informed to its local switch 11 connected by this RB5, switch 11 just can know that RB5 has not been re-used as the AVF of VLAN10, then switch can delete corresponding list item, and the flow of the VLAN10 in follow-up local network 1 also would not be forwarded to RB5 again.Suppose that DRB reassigns the AVF of RB6 as VLAN10, this message notice switch can be known by RB6, and exchange opportunity upgrades forwarding-table item, and the flow of VLAN10 forwards to RB6 by rear extended meeting.In like manner, other RB equipment in TRILL network also can learn this AVF redistribute after result, and change the forward-path of corresponding vlan traffic.
RB5 deletes original AVF information of distributing on its down link, and can avoid follow-up contingent traffic forwarding conflict, such as, RB5 still retains the AVF vlan information of its original allocation, and it loses AVF would not to notify switch 11; Accordingly, switch 11 also still can retain the MAC forwarding-table item about RB5, unicast message still can mail to RB5, thus causes forwarding fault; And for broadcasting packet, suppose that the VLAN10 that original RB5 is responsible for is distributed to RB6 by DRB, switch then can by message broadcasting on new and old two AVF, namely be forwarded on RB5 and RB6, if the up link of RB5 recovers normal, then now these two AVF come into force simultaneously, follow-uply will produce loop problem.And delete original AVF information of distributing on its down link when fault by RB5, the generation of above-mentioned situation can be avoided.
In yet another embodiment, when RB equipment Inspection to fault up link recover normal time, also can trigger this RB equipment to DRB equipment send hello packet, carry the enable vlan information of RB equipment in message, to trigger the distribution that DRB re-starts AVF.Flow process shown in Figure 7:
701, RB5 detects that up link is recovered;
Wherein, the Link State detection mode shown in RB5 still can adopt in the diagram detects, and RB5 can pass through to arrange track item on the uplink, and down link is learnt in time, and its up link has recovered normal.
702, RB5 sends hello packet to RB4, carries the enable vlan information of RB5 in message;
In this step, RB5 thereon line link recovers normally, the transmission of hello packet on down link can be triggered, and in hello packet, carry the enable vlan information of this RB5 self, for showing that RB5 has possessed the ability forwarding these vlan traffics again, specifically this enable VLAN can carry in the Enabled-VLANs Sub-TLV of hello packet.
703, RB4 redistributes AVF;
When RB4 receive RB5 send carry the hello packet of enable VLAN time, for the object of load balancing, the RB4 as DRB can distribute AVF again, specifically how to distribute and no longer illustrates.When this AVF redistribute the AVF VLAN related on RB4, RB5 and RB6 all to change time, such as by RB4 and RB6 some VLAN of being responsible for distribute to RB5 and share, then RB5 will add relevant AVF information at the down link of oneself, and RB4 and RB6 of correspondence will delete this AVF information in the downlink configuration of oneself, described in namely following 704-706.
704, the change of RB4 process AVF;
705, RB4 sends hello packet, carries AVF allocation result in this message;
706, RB5 and RB6 processes the change of AVF respectively.
Optionally, if more pursue the stability of network, DRB also can not carry out AVF code reassignment.
Based on the distribution method of AVF in above-mentioned TRILL network, the embodiment of the present invention additionally provides the RB equipment for realizing the method.Wherein RB equipment is see a Fig. 8, and this RB equipment is such as RB5 or RB6 shown in Fig. 1.This RB equipment can comprise: detection module 81, processing module 82 and sending module 83; Wherein,
Detection module 81, for detecting that up link breaks down;
Processing module 82, for when described detection module detects that up link breaks down, the AVF that the described RB equipment deleting storage is responsible for;
Sending module 83, for when detection module 81 detects that up link breaks down, hello packet is sent to appointment routing bridge DRB equipment, the enable vlan information that hello packet comprises and AVF vlan information are sky, according to hello packet, the AVF that described RB equipment is responsible for are distributed to other RB equipment to make described DRB.
Further, described detection module 81, also for detecting that the described up link of fault recovers normal;
Described sending module 82, time also for detecting that at described detection module the described up link of fault is recovered normal, send hello packet to described DRB equipment, described hello packet comprises the enable vlan information of described RB equipment.
Fig. 9 provides a kind of entity structure diagram of RB equipment, this RB equipment 800 can comprise: processor (processor) 810, communication interface (Communications Interface) 820, memory (memory) 830, bus 840; Processor 810, communication interface 820, memory 830 completes mutual communication by bus 840; Communication interface 820, for net element communication, such as with other RB devices communicatings.Processor 810, for the instruction in execute store 830, realizes above-mentioned AVF distribution method.Corresponding module in the specific implementation embodiment shown in Figure 8 of the instruction in this memory 830, is not repeated herein.
Figure 10 shows the structure of DRB equipment, and this DRB can comprise: receiver module 91 and distribution module 92; Wherein, receiver module 91, for receiving the hello packet that RB equipment sends, the enable vlan information that described hello packet comprises and AVF vlan information are sky;
Distribution module 92, when being empty described hello packet for receiving enable vlan information at described receiver module, distributes to other RB equipment by the AVF that described RB equipment is responsible for.
Further, receiver module 91, also for receiving the hello packet of RB equipment transmission when detecting that the up link of fault is recovered normal, hello packet comprises the enable vlan information of RB equipment;
Described distribution module 92, the described enable vlan information also for receiving according to described receiver module, re-starts the distribution of AVF.
Figure 11 provides a kind of entity structure diagram of DRB equipment, this DRB equipment 1000 can comprise: processor (processor) 1010, communication interface (Communications Interface) 1020, memory (memory) 1030, bus 1040; Processor 1010, communication interface 1020, memory 1030 completes mutual communication by bus 1040; Communication interface 1020, for net element communication, such as with other RB devices communicatings.Processor 1010, for the instruction in execute store 1030, realizes above-mentioned AVF distribution method.Corresponding module in the specific implementation embodiment shown in Figure 10 of the instruction in this memory 1030, is not repeated herein.
In addition, if the function of above-mentioned RB equipment using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that the technical scheme of the embodiment of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make 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 comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (9)
1. a distribution method of AVF in TRILL network, the access link of wherein this network comprises multiple access device RB, has one to be designated as DRB equipment, it is characterized in that, comprising in described RB:
RB equipment Inspection is broken down to up link;
The AVF that the described RB equipment that described RB unit deletion stores is responsible for, and send hello packet to appointment routing bridge DRB equipment, the enable vlan information that described hello packet comprises and AVF vlan information are sky, according to described hello packet, the AVF that described RB equipment is responsible for are distributed to other RB equipment to make described DRB.
2. method according to claim 1, is characterized in that, also comprises:
Described RB equipment Inspection recovers normal to the described up link of fault;
Described RB equipment sends hello packet to described DRB equipment, and described hello packet comprises the enable vlan information of described RB equipment.
3. method according to claim 1, is characterized in that, the quantity of described up link is multiple;
Described RB equipment Inspection is broken down to up link, is specially: described RB equipment Inspection is all broken down to all up links.
4. a distribution method of AVF in TRILL network, the access link of wherein this network comprises multiple access device RB, has one to be designated as DRB equipment, it is characterized in that, comprising in described RB:
Specify routing bridge DRB equipment to receive the hello packet of RB equipment transmission, the enable vlan information that described hello packet comprises and AVF vlan information are sky;
The AVF that described RB equipment is responsible for is distributed to other RB equipment by described DRB equipment.
5. method according to claim 4, is characterized in that, after the AVF that described RB equipment is responsible for is distributed to other RB equipment by described DRB equipment, also comprises:
Described DRB equipment receives the hello packet of described RB equipment transmission when detecting that the up link of fault is recovered normal, and described hello packet comprises the enable vlan information of described RB equipment;
Described DRB equipment, according to described enable vlan information, re-starts the distribution of AVF.
6. a RB equipment, wherein this RB equipment is one of them access device RB on the access link of TRILL network, and the another one in each access device RB in this network is designated as DRB equipment, it is characterized in that, this RB equipment comprises:
Detection module, for detecting that up link breaks down;
Processing module, for when described detection module detects that up link breaks down, the AVF that the described RB equipment deleting storage is responsible for;
Sending module, for when described detection module detects that up link breaks down, hello packet is sent to appointment routing bridge DRB equipment, the enable vlan information that described hello packet comprises and AVF vlan information are sky, according to described hello packet, the AVF that described RB equipment is responsible for are distributed to other RB equipment to make described DRB.
7. equipment according to claim 6, is characterized in that,
Described detection module, also for detecting that the described up link of fault recovers normal;
Described sending module, time also for detecting that at described detection module the described up link of fault is recovered normal, send hello packet to described DRB equipment, described hello packet comprises the enable vlan information of described RB equipment.
8. a DRB equipment, wherein this DRB equipment be TRILL network access link on each access device RB in be designated as the equipment of DRB, the access link in this network comprises multiple access device RB, it is characterized in that, this DRB equipment comprises:
Receiver module, for receiving the hello packet that RB equipment sends, the enable vlan information that described hello packet comprises and AVF vlan information are sky;
Distribution module, when being empty described hello packet for receiving enable vlan information at described receiver module, distributes to other RB equipment by the AVF that described RB equipment is responsible for.
9. equipment according to claim 8, is characterized in that,
Described receiver module, also for receiving the hello packet of described RB equipment transmission when detecting that the up link of fault is recovered normal, described hello packet comprises the enable vlan information of described RB equipment;
Described distribution module, the described enable vlan information also for receiving according to described receiver module, re-starts the distribution of AVF.
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