CN102333024B - The retransmission method of the Frame of VPLS VPLS, equipment and system - Google Patents
The retransmission method of the Frame of VPLS VPLS, equipment and system Download PDFInfo
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- CN102333024B CN102333024B CN201010227621.5A CN201010227621A CN102333024B CN 102333024 B CN102333024 B CN 102333024B CN 201010227621 A CN201010227621 A CN 201010227621A CN 102333024 B CN102333024 B CN 102333024B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1886—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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Abstract
The embodiment of the invention discloses the retransmission method of the Frame of VPLS VPLS, equipment and system, comprise: receive static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS; Resolve described static mac address installation message and obtain described MAC Address; Described MAC Address is installed to static forwarding table; When from leaf client reception to Frame, forward described Frame according to described static forwarding table.Each leaf PE, without the need to revising Forwarding plane, can support VPLS multicast service, reduce equipment cost.Be conducive to the seamless upgrade realizing VPLS network, again reduce the complexity that network upgrade is disposed.
Description
Technical field
The present invention relates to communication technical field, particularly relate to the retransmission method of the Frame of a kind of VPLS VPLS, equipment and system.
Background technology
VPLS (Virtual Private Local Area Network Service, VPLS) is that one utilizes WAN (Wide Area Network, wide area network) framework to carry out the technology of virtual ethernet local area network.It can at MPLS (Multi-Protocol Label Switching, multiprotocol label switching) network provides be similar to LAN (Local Area Network, local area network (LAN)) many Point-to-multipoint connections, be convenient to the point that user disperses from multiple geographical position and access MPLS network simultaneously, and mutually access, just as these points are directly linked on LAN.Because current core network mainly all adopts lP/MPLS technology, so provide the demand of virtual ethernet business to get more and more by VPLS, it is disposed also widely.
When Ethernet service is multicast service or when the destination address of Ether frame is unknown, tradition VPLS adopts the method copying forwarding usually, i.e. Root PE (Provider Edge, run edge device) Ether frame is copied many parts and sends a copy by point-to-point PW (Pseudo Wire, pseudo-line) to each opposite end PE.But in this manner, VPLS network bandwidth consumption is proportional to the quantity of leaf PE, therefore, its extension of network is extremely restricted, and network operation cost is very high.
VSl (the Virtual Switch Instance of VPLS in addition, virtual switch instance) transponder, generally employ the self-study mechanism being similar to traditional ethernet, its process is, when an Ether frame arrives VSI transponder by a PW, and the source MAC of this frame is unknown, and so this address is just associated together with this PW, during the MAC being kept at VSI transponder as forwarding-table item transmits, the frame that later VSI transponder is sent to this address is just transmitted by this PW.
In the L2VPN working group of IETF, there is one section of working group's manuscript to discuss the multicast correlation technique (draft-ietf-12vpn-vpls-mcast-05) of L2VPN at present, it is described that a kind of technology of being carried out multicast by VPLS network.Its forward, namely the direction of leaf PE is sent to by Root PE, the inundation of the Ether frame of multicast and unknown unicast address is all sent to all leaves by a kind of multicast tree (being generally the PW of point-to-multipoint P2MP) of special tectonic, and the Ether frame of known unicast address is then still transmitted by point-to-point P2PPW.But it is reverse, and being namely sent to the direction of Root PE by leaf, is then all also by P2P PW transmit data frames.
Realizing in process of the present invention, inventor finds that the prior art exists following defect:
Asymmetric due to forward multicast and reverse clean culture, leaf PE cannot construct its two-layer retransmitting table normally through MAC Address self study, and therefore, leaf PE needs, at Forwarding plane amendment self-study mechanism, to need all leaf PE to support new ether Forwarding plane.This just needs the forwarding engine that design and development is new, and PE equipment cost is very high.
Summary of the invention
The embodiment provides the retransmission method of the Frame of a kind of VPLS VPLS, equipment and system, to make each leaf PE without the need to revising its Forwarding plane, VPLS multicast service can be supported, reduce equipment cost.
The embodiment of the present invention provides the retransmission method of the Frame of a kind of VPLS VPLS, comprise: receive static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS; Resolve described static mac address installation message and obtain described MAC Address; Described MAC Address is installed to static forwarding table; When from leaf client reception to Frame, forward described Frame according to described static forwarding table.
The embodiment of the present invention also provides the equipment of a kind of VPLS VPLS, comprise: receiving element, for receiving static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS; Resolution unit, obtains described MAC Address for resolving described static mac address installation message; Installation unit, for installing described MAC Address to static forwarding table; Retransmission unit, for when from leaf client reception to Frame, forwards described Frame according to described static forwarding table.
The embodiment of the present invention also provides the system of a kind of VPLS VPLS, comprise: root operation edge device Root PE, for sending static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS; Leaf operation edge device Leaf PE, for receiving, resolving described static mac address installation message, obtains described MAC Address; And for installing described MAC Address to static forwarding table; When from leaf client reception to Frame, forward described Frame according to described static forwarding table.
The embodiment of the present invention also provides the equipment of a kind of VPLS VPLS, and for sending static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS.
Use the method for the embodiment of the present invention, each leaf PE, without the need to revising its Forwarding plane, can support VPLS multicast service, reduce equipment cost.Thus traditional VPLS PE equipment can either be made can to realize VPLS multicast immediately.It can be compatible with the PE equipment under original VPLS multicast model, also can realize on the PE of general Forwarding plane, be conducive to the seamless upgrade realizing VPLS network, again reduces the complexity that network upgrade is disposed.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, 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 flow chart of the retransmission method of the Frame of a kind of VPLS VPLS that one embodiment of the invention provides;
Fig. 2 is the application network scene schematic diagram of one embodiment of the invention;
Fig. 3 is the message format schematic diagram that the static mac address expanded under one embodiment of the invention LDP agreement is installed;
Fig. 4 is the message format schematic diagram that the static mac address expanded under one embodiment of the invention LDP agreement is deleted;
Fig. 5 is the Scene case schematic diagram of one embodiment of the invention under main-apparatus protection and load balancing;
Fig. 6 is the equipment schematic diagram of a kind of VPLS VPLS that one embodiment of the invention provides;
Fig. 7 is the system schematic of a kind of VPLS VPLS that one embodiment of the invention provides.
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 only 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.
As shown in Figure 1, the retransmission method of the Frame of the VPLS VPLS that the embodiment of the present invention provides, comprise: receive static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS; Resolve described static mac address installation message and obtain described MAC Address; Described MAC Address is installed to static forwarding table; When from leaf client reception to Frame, forward described Frame according to described static forwarding table.Use the method, each leaf PE, without the need to revising Forwarding plane, can support VPLS multicast service, reduce equipment cost.Thus traditional VPLS PE equipment can either be made can to realize VPLS multicast immediately, the PE equipment under original VPLS multicast model can be compatible with, also can realize on the PE of general Forwarding plane, be conducive to the seamless upgrade realizing VPLS network, again reduce the complexity that network upgrade is disposed.
Described in detail the embodiment of the present invention below by the network scenarios of as shown in Figure 2, in figure, PE1, PE2 and PE3 form a VPLS network, and ether multicast source R is connected to PE1, therefore PE1 is Root PE, and two multicast leaf L1 and L2 are connected respectively to leaf PE2 and PE3.Before multicast service is provided, a multicast tree PW0 is set up between PE1 to PE2 and PE3, and between PE1 and PE2, PE1 and PE3, set up clean culture PW (PW1 and PW2) respectively, PW (PW3) can be set up between PE2 and PE3, also can not set up PW.Under preferred implementation, PE1 respectively sends static mac address installation message by management plane order to PE2 and PE3 by control signal or network management platform, the MAC Address (all right selectivity notices the information of point-to-point pseudo-line PW1 or PW2 simultaneously) corresponding to notifying multicast source R port.After PE2 and PE3 receives this static mac address installation message, resolve this static mac address installation message, judge whether this static mac address installation message comprises the point-to-point pseudo-line P2P PW information associated with this MAC Address, if judged result is yes, then this MAC Address and P2P PW information are installed to static forwarding table; Judged result is no, then run the Root PE address of carrying in edge device Root PE address or this static mac address installation message according to the root sending this static mac address installation message, obtain the P2P PW information associated with this MAC Address; This MAC Address and P2P PW information are installed to static forwarding table.
In addition, the ether multicast source R in figure may not be terminal use's (or server), but a bridge equipment, multiple terminal use (or server) can be linked into PE1 by this bridge equipment.Now, PE1 needs the MAC Address list corresponding to these terminal uses (or server) to be communicated on all leaf PE by management plane order by control signal or network management platform.
If the ether unicast frame that the destination address having a leaf (L1) to send is ether multicast source R port correspondence MAC Address enters the VSI transponder of PE2, in MAC Address is searched, the static forwarding list item installed by said process obtains the pseudo-line PW1 of P2P of its association, is then transmitted by this PW1 by this ether unicast frame.Be specifically as follows: when dividing into groups encapsulation, first the PW label (PW1 label) of P2P is inserted, then the lsp tunnel through P2P encapsulates, be sent on Root PE (PE1) by point-to-point pseudo-line PW1 again, this ether unicast frame is sent to corresponding Root port according to MAC Address by PE1.
The embodiment of the present invention two gives the MAC Address delete procedure of ether multicast source.When ethernet multicast business stops, or when the access topology of ether multicast source changes, Root PE sends static mac address by control signal or network management platform by management plane order and deletes message, MAC Address corresponding to former ether multicast source port is noticed all leaf PE, noticed MAC Address list item is deleted after receiving and deleting message by leaf PE from static forwarding table.
When the access topology of ether multicast source changes, under the implementation optimized, above-mentioned RootPE also can send static mac address by control signal or network management platform by management plane order and re-mount message, MAC Address corresponding to new ether multicast source port is noticed all leaf PE, after each leaf PE receives this message, noticed MAC Address list item is deleted from static forwarding table, and the new static forwarding list item associated with new ether multicast source port is installed.
The implementation method that the embodiment of the present invention is realized MAC Address installation by expansion LDP signaling and deleted.Current LDP is the main signaling setting up PW, is therefore illustrated for it.But mechanism described in the invention is equally also applicable on other route signaling protocols such as BGP (Border Gateway Protocol, Border Gateway Protocol).
As shown in Figure 3 and Figure 4, the static mac address installation expanded under sets forth LDP agreement and static mac address delete the message format of two types.Washability ground, PW information can be carried in the option parameter field of message.The message format that static mac address re-mounts is similar.
First, when supporting that the VPLS of multicast sets up PW between all PE for one, if Root PE and leaf PE sets up the pseudo-line of Ethernet between them by LDP signaling, then Root PE sends static mac address installation message by the message format of Fig. 3, namely, by a TLV (Type Length Value, type lengths values) carry the mac address table corresponding to one or more ether multicast source ports that will notice, it also can select to carry a TLV option further, carries the PW information corresponding to it.
After Leaf PE receives static mac address installation message, resolve this message and the TLV entrained by it, first it resolves the MAC Address collection obtained corresponding to ether multicast source port, the option TLV of PW information is comprised if carry in message, then corresponding <Root MAC, PW> are installed to static forwarding table as MAC forwarding-table item.Otherwise, it runs the Root PE address of carrying in edge device Root PE address (source IP address) or this static mac address installation message according to the root sending this static mac address installation message, obtains the unique P2P PW information corresponding to this IP address; Finally <Root MAC, PW> are installed to static forwarding table as MAC forwarding-table item.If MAC Address collection comprises multiple address, then by said process, multiple static forwarding list item is installed.
When multicast service stops, Root PE sends static mac address by the message format of Fig. 4 and deletes message, that is, carry mac address table corresponding to the one or more ether multicast source ports that will notice by a TLV.
After Leaf PE receives static mac address deletion message, resolve this message and the TLV entrained by it, obtain the mac address table corresponding to ether multicast source port, then corresponding one or more MAC forwarding-table items are deleted from static forwarding table.
Further embodiment of this invention gives the embodiment of the VPLS multicast under Root main-apparatus protection and load balancing.As shown in Figure 5, two multicast source Root equipment and multiple leaf equipment are respectively by PE equipment access VPLS network, and two multicast tree that have been the multicast service configuration of this client in VPLS network, can provide multicast services for all leaf equipment by their two Root equipment.
Under Root main-apparatus protection pattern, general appointment Root is as work Root, and another Root is as protection Root.Under normal circumstances, only have work Root to carry out multicast, and protect Root not provide multicast services.Before multicast service is provided, work Root PE makes it be associated with PW corresponding to oneself according to the static mac address list item that process described in above-described embodiment installs oneself on all leaf PE, like this, the unicast message only having work Root PE can receive leaf time normal to send.Once work Root breaks down (such as, equipment breaks down or access link breaks down), so protect Root then to take over and multicast services is provided.Meanwhile, protection Root PE sends according to above-described embodiment process and re-mounts message and install new static mac address list item on each leaf PE, makes it be associated with new PW corresponding to oneself, and the unicast message of leaf PE is sent on protection Root.
Under Root load balancing pattern, two (or more) Root can provide multicast service simultaneously, also can both process the unicast message from leaf.Before multicast service is provided, Root PE or network management platform install the static mac address list item corresponding to Rootl on a part of leaf PE, another part leaf PE then installs the static mac address list item corresponding to Root2, thus make the reverse unicast path of each leaf PE point to two different Root PE respectively, thus to reach a Root be that a part of leaf serves, another Root is then the object that another part leaf serves.Signaling can adopt the form of message as above-described embodiment.If point-to-point control channel, then only need to provide corresponding MAC Address and PW; If Broadcast Control Channel (such as BGP), then also need to carry leaf child group information in the signaling and (be such as only installed to leaf group 1, only be installed to leaf group 2, or be installed to all leaf groups), so that leaf PE can determine whether installing static mac address list item according to leaf child group information and the leaf group ID of oneself, those leaves PE only having leaf child group information and its leaf group ID to mate just installs corresponding forwarding-table item.
By above-described embodiment, the embodiment of the present invention can realize main-apparatus protection and the load balancing of Root easily.
(E-Tree is a kind of general new business of MEF definition to organize the E-Tree business of definition for Metro Ethernet Forum MEF, it is a kind of important application scene of VPLS multicasting technology, it has following characteristic: Root to Leaf is many-one relationship, and may there is multiple Root equipment; Root can send letter flow also can be sent to any Root to any Root and Leaf, Leaf; Can not be communicated with between Leaf and Leaf, need letter flow to isolate.), letter flow can not be had between itself leaf and leaf to be communicated with, need to carry out letter flow isolation, and leaf to be only to be sent to one or more Root by message.This can be solved by the method for the present embodiment: first, before business transmits, and the static forwarding list item (it is associated with one or more PW, and every bar PW corresponds to a Root PE) that installation one is special on the VSI of all leaf PE; When the VSI of leaf PE from leaf client reception to multicast, the unicast frame of broadcast frame or unknown destination address time, then by above-mentioned particular static forwarding-table item, this frame is forwarded.So, each leaf PE, each other without grouping inundation, achieves leaf isolation on the one hand, avoids the MAC Address learning other leaf on the other hand, improves the autgmentability of network.
The installation of this particular static forwarding-table item and deleting can be adopted with the following method: such as, make the numerical value of MAC Address be 0 or other particular values represent this special list item, and static mac address installation message carries one or more PW information.When receiving static MAC installation message, and its MAC Address numerical value is 0 or other particular values, then install corresponding particular static forwarding-table item.Delete message when receiving static mac address, and its MAC Address numerical value is 0 or other particular values, then deleted by this particular static forwarding-table item.
Use the method for the embodiment of the present invention, each leaf PE, without the need to revising Forwarding plane, can support VPLS multicast service, reduce equipment cost.Thus traditional VPLS PE equipment can either be made can to realize VPLS multicast immediately, the PE equipment under original VPLS multicast model can be compatible with, also can realize on the PE of general Forwarding plane, be conducive to the seamless upgrade realizing VPLS network, again reduce the complexity that network upgrade is disposed.
As shown in Figure 6, one embodiment of the invention also provides the equipment of a kind of VPLS VPLS, comprising:
Receiving element, for receiving static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS;
Resolution unit, obtains described MAC Address for resolving described static mac address installation message;
Installation unit, for installing described MAC Address to static forwarding table;
Retransmission unit, for when from leaf client reception to Frame, forwards described Frame according to described static forwarding table.
The equipment of a kind of VPLS VPLS that another embodiment of the present invention provides, except having the unit shown in Fig. 6, described equipment also comprises:
Judging unit, for judging whether described static mac address installation message comprises the point-to-point pseudo-line P2P PW information associated with described MAC Address, if described judged result is yes, then described installation unit is specifically for installing described MAC Address and described P2P PW information to described static forwarding table; Described retransmission unit, specifically for when from leaf client reception to unicast frame, forwards described unicast frame by described P2P PW.
The equipment of a kind of VPLS VPLS that another embodiment of the present invention provides, except having the unit shown in Fig. 6, described equipment also comprises:
Judging unit, for judging whether described static mac address installation message comprises the P2P PW information associated with described MAC Address,
Acquiring unit, for when the judged result of described judging unit is no, root according to sending described static mac address installation message runs the Root PE address of carrying in edge device Root PE address or described static mac address installation message, obtains the P2P PW information associated with described MAC Address;
Described installation unit is specifically for installing described MAC Address and described P2P PW information to described static forwarding table; Described retransmission unit, specifically for when from leaf client reception to unicast frame, forwards described unicast frame by described P2P PW.
The equipment of a kind of VPLS VPLS that another embodiment of the present invention provides has the unit shown in Fig. 6, wherein,
If described MAC Address is particular value, described static mac address installation message also comprises the one or more P2P PW information associated with described special MAC Address, and described every bar P2P PW corresponds to a Root PE,
Then described installation unit is specifically for installing described special MAC Address and described P2P PW information obtains particular static forwarding-table item to described static forwarding table,
Described retransmission unit specifically for when from leaf client reception to multicast frame, the unicast frame of broadcast frame or unknown destination address time, forwarded the unicast frame of described multicast frame, broadcast frame or unknown destination address by described particular static forwarding-table item.
As shown in Figure 7, another embodiment of the present invention also provides the system of a kind of VPLS VPLS, comprising:
Root operation edge device Root PE, for sending static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS;
Leaf operation edge device Leaf PE, for receiving, resolving described static mac address installation message, obtains described MAC Address; And for installing described MAC Address to static forwarding table; When from leaf client reception to Frame, forward described Frame according to described static forwarding table.
Another embodiment of the present invention also provides the system of a kind of VPLS VPLS, there is equipment as shown in Figure 7, wherein, described leaf operation edge device Leaf PE is also for judging whether described static mac address installation message comprises the point-to-point pseudo-line P2P PW information associated with described MAC Address, if described judged result is yes, then described MAC Address and described P2P PW information are installed to described static forwarding table; When from leaf client reception to unicast frame, forward described unicast frame by described P2P PW.
Another embodiment of the present invention also provides the system of a kind of VPLS VPLS, there is equipment as shown in Figure 7, wherein, described leaf operation edge device Leaf PE is also for judging whether described static mac address installation message comprises the P2P PW information associated with described MAC Address, if described judged result is no
Then run the Root PE address of carrying in edge device Root PE address or described static mac address installation message according to the root sending described static mac address installation message, obtain the P2P PW information associated with described MAC Address;
Described MAC Address and described P2P PW information are installed to described static forwarding table; When from leaf client reception to unicast frame, forward described unicast frame according to described P2P PW.
Another embodiment of the present invention also provides the system of a kind of VPLS VPLS, there is equipment as shown in Figure 7, wherein, if described MAC Address is particular value, described static mac address installation message also comprises the one or more P2P PW information associated with described special MAC Address, described every bar P2P PW corresponds to a Root PE
Then described leaf operation edge device Leaf PE is specifically for installing described special MAC Address and described P2P PW information obtains particular static forwarding-table item to described static forwarding table,
When from leaf client reception to multicast frame, the unicast frame of broadcast frame or unknown destination address time, specifically for being forwarded the unicast frame of described multicast frame, broadcast frame or unknown destination address by described particular static forwarding-table item.
Another embodiment of the present invention also provides the equipment of a kind of VPLS VPLS, and for sending static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS.
The content such as signal transacting, implementation concrete between each part of said apparatus, due to the inventive method embodiment based on same conception, can see the inventive method embodiment describe, repeat no more herein.
The above; be only the present invention's preferably embodiment, 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; the change that can expect easily or replacement, 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 claim.
Claims (14)
1. a retransmission method for the Frame of VPLS VPLS, is characterized in that, comprising:
Receive static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS, and described static mac address installation message is sent by management plane order by network management platform;
Resolve described static mac address installation message and obtain described MAC Address;
Described MAC Address is installed to static forwarding table;
When from leaf client reception to Frame, forward described Frame according to described static forwarding table.
2. retransmission method according to claim 1, it is characterized in that, after resolving described static mac address installation message, described method also comprises: judge whether described static mac address installation message comprises the point-to-point pseudo-line P2P PW information associated with described MAC Address, if described judged result is yes, then the described MAC Address of described installation comprises to static forwarding table: install described MAC Address and described P2P PW information to described static forwarding table;
Described when from leaf client reception to Frame, forwarding described Frame according to described static forwarding table to comprise: when from leaf client reception to destination address being the unicast frame of described MAC Address, forwarding described unicast frame by the described P2P PW associated with described MAC Address.
3. retransmission method according to claim 1, it is characterized in that, after resolving described static mac address installation message, described method also comprises: judge whether described static mac address installation message comprises the P2P PW information associated with described MAC Address, if described judged result is no, then described method also comprises:
Root according to sending described static mac address installation message runs the Root PE address of carrying in edge device Root PE address or described static mac address installation message, obtains the P2P PW information associated with described MAC Address;
Then the described MAC Address of described installation comprises to static forwarding table: install described MAC Address and described P2P PW information to described static forwarding table;
Described when from leaf client reception to Frame, forwarding described Frame according to described static forwarding table to comprise: when from leaf client reception to destination address being the unicast frame of described MAC Address, forwarding described unicast frame by the described P2P PW associated with described MAC Address.
4. retransmission method according to claim 1, it is characterized in that, if described MAC Address is particular value, described static mac address installation message also comprises the one or more P2P PW information associated with described special MAC Address, described every bar P2P PW corresponds to a Root PE, then install described MAC Address and comprise to static forwarding table: install described special MAC Address and described P2P PW information obtains particular static forwarding-table item to described static forwarding table;
Described when from leaf client reception to Frame, forward described Frame according to described static forwarding table to comprise: when from leaf client reception to multicast frame, the unicast frame of broadcast frame or unknown destination address time, forwarded the unicast frame of described multicast frame, broadcast frame or unknown destination address by described particular static forwarding-table item.
5. retransmission method according to claim 1, it is characterized in that, if the multicast source of described VPLS is bridge equipment, multiple terminal use or server are linked into Root PE by described bridge equipment, then described MAC Address is the MAC Address list corresponding with described multiple terminal use or server.
6. an equipment of VPLS VPLS, is characterized in that, comprising:
Receiving element, for receiving static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS, and described static mac address installation message is sent by management plane order by network management platform;
Resolution unit, obtains described MAC Address for resolving described static mac address installation message;
Installation unit, for installing described MAC Address to static forwarding table;
Retransmission unit, for when from leaf client reception to Frame, forwards described Frame according to described static forwarding table.
7. equipment according to claim 6, is characterized in that, described equipment also comprises:
Judging unit, for judging whether described static mac address installation message comprises the point-to-point pseudo-line P2P PW information associated with described MAC Address, if described judged result is yes, then described installation unit is specifically for installing described MAC Address and described P2P PW information to described static forwarding table; Described retransmission unit, specifically for when from leaf client reception to destination address being the unicast frame of described MAC Address, forwards described unicast frame by the described P2P PW associated with described MAC Address.
8. equipment according to claim 6, is characterized in that, described equipment also comprises:
Judging unit, for judging whether described static mac address installation message comprises the P2P PW information associated with described MAC Address,
Acquiring unit, for when the judged result of described judging unit is no, root according to sending described static mac address installation message runs the Root PE address of carrying in edge device Root PE address or described static mac address installation message, obtains the P2P PW information associated with described MAC Address;
Described installation unit is specifically for installing described MAC Address and described P2P PW information to described static forwarding table; Described retransmission unit, specifically for when from leaf client reception to destination address being the unicast frame of described MAC Address, forwards described unicast frame by the described P2P PW associated with described MAC Address.
9. equipment according to claim 6, it is characterized in that, if described MAC Address is particular value, described static mac address installation message also comprises the one or more P2P PW information associated with described special MAC Address, described every bar P2P PW corresponds to a Root PE
Then described installation unit is specifically for installing described special MAC Address and described P2P PW information obtains particular static forwarding-table item to described static forwarding table,
Described retransmission unit specifically for when from leaf client reception to multicast frame, the unicast frame of broadcast frame or unknown destination address time, forwarded the unicast frame of described multicast frame, broadcast frame or unknown destination address by described particular static forwarding-table item.
10. a system of VPLS VPLS, is characterized in that, comprising:
Root operation edge device Root PE, for sending static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS, and described static mac address installation message is sent by management plane order by network management platform;
Leaf operation edge device Leaf PE, for receiving, resolving described static mac address installation message, obtains described MAC Address; And for installing described MAC Address to static forwarding table; When from leaf client reception to Frame, forward described Frame according to described static forwarding table.
11. systems according to claim 10, it is characterized in that, described leaf operation edge device Leaf PE is also for judging whether described static mac address installation message comprises the point-to-point pseudo-line P2P PW information associated with described MAC Address, if described judged result is yes, then: described MAC Address and described P2P PW information are installed to described static forwarding table; When from leaf client reception to destination address being the unicast frame of described MAC Address, forward described unicast frame by the described P2P PW associated with described MAC Address.
12. systems according to claim 10, it is characterized in that, described leaf runs edge device Leaf PE also for judging whether described static mac address installation message comprises the P2P PW information associated with described MAC Address, if described judged result is no, then:
Root according to sending described static mac address installation message runs the Root PE address of carrying in edge device Root PE address or described static mac address installation message, obtains the P2P PW information associated with described MAC Address;
Described MAC Address and described P2P PW information are installed to described static forwarding table; When from leaf client reception to destination address being the unicast frame of described MAC Address, forward described unicast frame by the described P2P PW associated with described MAC Address.
13. systems according to claim 10, it is characterized in that, if described MAC Address is particular value, described static mac address installation message also comprises the one or more P2P PW information associated with described special MAC Address, described every bar P2P PW corresponds to a Root PE, then described leaf operation edge device Leaf PE specifically for:
Described special MAC Address is installed and described P2P PW information obtains particular static forwarding-table item to described static forwarding table,
When from leaf client reception to multicast frame, the unicast frame of broadcast frame or unknown destination address time, forwarded the unicast frame of described multicast frame, broadcast frame or unknown destination address by described particular static forwarding-table item.
The equipment of 14. 1 kinds of VPLS VPLS, it is characterized in that, for sending static mac address installation message, described static mac address installation message comprises the MAC address corresponding to multicast source port of described VPLS, and described static mac address installation message is sent by management plane order by network management platform.
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| CN201010227621.5A CN102333024B (en) | 2010-07-12 | 2010-07-12 | The retransmission method of the Frame of VPLS VPLS, equipment and system |
| PCT/CN2011/073414 WO2011140921A1 (en) | 2010-07-12 | 2011-04-28 | Method, device and system for forwarding data frames of virtual private local area network service (vpls) |
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| CN201010227621.5A CN102333024B (en) | 2010-07-12 | 2010-07-12 | The retransmission method of the Frame of VPLS VPLS, equipment and system |
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| CN102571521A (en) * | 2011-12-30 | 2012-07-11 | 中兴通讯股份有限公司 | Method and device capable of realizing forwarding of VPLS |
| CN102724126A (en) * | 2012-06-27 | 2012-10-10 | 福建星网锐捷网络有限公司 | Method, device and equipment for forwarding Ethernet tree (E-tree) service message |
| CN102801820B (en) * | 2012-08-10 | 2015-01-28 | 杭州华三通信技术有限公司 | MAC address publishing method and device in EVI network |
| US9019973B1 (en) * | 2012-09-28 | 2015-04-28 | Juniper Networks, Inc. | Static MAC address propagation in multipoint network services |
| CN103888356B (en) * | 2014-04-12 | 2018-03-02 | 湖南省通信建设有限公司 | VPLS realization method, system and provider edge |
| CN108600109B (en) * | 2018-03-19 | 2020-12-04 | 新华三技术有限公司 | Message forwarding method and device |
| CN111711555B (en) * | 2020-05-29 | 2022-10-21 | 新华三信息安全技术有限公司 | Message processing method and device |
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