CN102932228A - Communication method, device and system for TRILL (Transparent Interconnection of Lots of Links) network - Google Patents

Communication method, device and system for TRILL (Transparent Interconnection of Lots of Links) network Download PDF

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Publication number
CN102932228A
CN102932228A CN2012104717974A CN201210471797A CN102932228A CN 102932228 A CN102932228 A CN 102932228A CN 2012104717974 A CN2012104717974 A CN 2012104717974A CN 201210471797 A CN201210471797 A CN 201210471797A CN 102932228 A CN102932228 A CN 102932228A
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information
broadcasting
subdomain
message
vlan
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CN102932228B (en
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谢莹
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210471797.4A priority Critical patent/CN102932228B/en
Publication of CN102932228A publication Critical patent/CN102932228A/en
Priority to PCT/CN2013/076061 priority patent/WO2014079208A1/en
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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
    • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L12/462—LAN interconnection over a bridge based backbone
    • H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
    • 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
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/16—Multipoint routing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention discloses a communication method, a communication device and a communication system for a TRILL (Transparent Interconnection of Lots of Links) network. The communication method for the TRILL network comprises the following steps: when receiving a message by a routing bridge, if determining that the message is a flooding message, acquiring broadcast subdomain information and virtual local area network (VLAN) information of the flooding message; according to the broadcast subdomain information and the VLAN information, determining a multicast forwarding table of the flooding message; and copying and sending the flooding message according to the multicast forwarding table. The invention can implement the effect of distributing the same access VLAN to different tenants in the TRILL network, so that the number of the tenants in the TRILL network can break through the limitation to the number of the VLANs and the actual application requirements are met.

Description

The communication means of TRILL network and device, system
Technical field
The embodiment of the invention relates to network communications technology field, relates in particular to a kind of TRILL network communication method and device, system.
Background technology
Multichain connects transparent interconnection (English: Transparent Interconnection of Lots of Links, be called for short TRILL) be Internet Engineering task groups (English: Internet Engineering Task Force, the double layer network standard of abbreviation IEIF) recommending, be used for solving Spanning-Tree Protocol (English: deficiency Spanning Tree Protocol) in the large-scale data center (English: Data Center, abbreviation DC).
In the TRILL network, tenant's (English: Tenant) can use VLAN (English: Virtual Local Area Network, be called for short VLAN) divide, the corresponding VLAN of each tenant, in existing TRILL network communication method, when route bridging is received when flooding message, according to the vlan information that comprises in the message that floods, determine the multicast forward table corresponding with this vlan information, send this message that floods according to the multicast forward table of determining, thereby can guarantee that the message that floods among each tenant only is limited in the affiliated VLAN of this tenant; Yet, press the 802.1Q standard, the VLAN field is supported at most 4094 VLAN, that is to say, at a TRILL network, supports at most to be no more than 4094 tenant's quantity, therefore, can't satisfy the practical application request of TRILL network Development.
Summary of the invention
The embodiment of the invention provides a kind of TRILL network communication method and device, system, can solve above-mentioned TRILL network to the problem of tenant's restricted number.
First aspect the invention provides a kind of TRILL network communication method, comprising:
Route bridging receiving literary composition if determine that described message is the message that floods, then obtains broadcasting subdomain information and the virtual LAN VLAN information of the described message that floods, and the described message that floods comprises multicast message or broadcasting packet or unknown unicast message; Described broadcasting subdomain information is used for identification broadcasting subdomain, and described vlan information is used for identification VLAN, and described VLAN comprises one or more broadcasting subdomains, the corresponding tenant of each broadcasting subdomain;
According to described broadcasting subdomain information and described vlan information, determine the multicast forward table of the described message that floods;
The described message that floods is copied and sends according to described multicast forward table.
In the possible implementation of the first, the described broadcasting subdomain information of obtaining the described message that floods comprises:
If described routing bridge receives described message by user-side port, then obtain the broadcasting subdomain information of the described message that floods by the configuration information of described user-side port;
If described routing bridge receives described message by the TRILL network-side port, the broadcasting subdomain information by the described message that floods of broadcasting subdomain acquisition of information that comprises in the TRILL frame head then.
Based on the possible implementation of the first, in the possible implementation of the second, obtain by described user-side port configuration information before the broadcasting subdomain information of the described message that floods, comprising:
Described routing bridge is that different tenants identify different broadcasting subdomain information among the described VLAN;
Described routing bridge is that different tenants distribute different user-side port among the described VLAN, and adds corresponding broadcasting subdomain information in the configuration information of different user-side port;
Described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information is broadcast in the TRILL network, so that other routing bridges in the described TRILL network according to described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information, are determined respectively respectively to broadcast broadcasting corresponding to subdomain information and affiliated vlan information and set with described.
Based on the possible implementation of first, second kind, in the third possible implementation, according to described broadcasting subdomain information and described vlan information, determine to comprise before the multicast forward table of the described message that floods:
Described routing bridge is set up the multicast forward table corresponding with described broadcasting subdomain information and described vlan information, comprises in the described multicast forward table that local multicast transmits and the network side multicast forward table;
During transmitting, described local multicast comprises described routing bridge according to described broadcasting subdomain information and the definite user-side port collection information corresponding with described broadcasting subdomain information and described vlan information of described vlan information;
The broadcasting tree corresponding with described broadcasting subdomain information and described vlan information that the described network side multicast forward table described broadcasting subdomain information that to be described routing bridge send according to other routing bridges and described vlan information calculate.
Based on first, second, and third kind of possible implementation, in the 4th kind of possible implementation, the described message that floods is copied and sends according to described multicast forward table, comprising:
The user-side port collection information that described routing bridge comprises in transmitting according to described local multicast sends the described message that floods;
Described routing bridge to the TRILL frame head, is encapsulated into described broadcasting subdomain Information encapsulation in the TRILL frame with the described message that floods, and broadcasts the message that floods after the described encapsulation by described network side multicast forward table.
Second aspect the invention provides a kind of TRILL network communication device, comprises routing bridge, and described routing bridge comprises:
Acquisition module is used for receiving message, if determine that described message is the message that floods, then obtains broadcasting subdomain information and the virtual LAN VLAN information of the described message that floods, and the described message that floods comprises multicast message or broadcasting packet or unknown unicast message; Described broadcasting subdomain information is used for identification broadcasting subdomain, and described vlan information is used for identification VLAN, and described VLAN comprises one or more broadcasting subdomains, the corresponding tenant of each broadcasting subdomain;
Determination module for the broadcasting subdomain information and the described vlan information that obtain according to described acquisition module, is determined the multicast forward table of the described message that floods;
Sending module is used for the multicast forward table that the described message that floods is determined according to described determination module is copied and sends.
In the possible implementation of the first, described acquisition module if specifically be used for receiving described message by user-side port, then obtains the broadcasting subdomain information of the described message that floods by the configuration information of described user-side port; If perhaps receive described message by the TRILL network-side port, the broadcasting subdomain information by the described message that floods of broadcasting subdomain acquisition of information that comprises in the TRILL frame head then.
Based on the possible implementation of the first, in the possible implementation of the second, described device also comprises configuration module, is used to that different tenants identify different broadcasting subdomain information among the described VLAN; Described configuration module is used to also that different tenants distribute different user-side port among the described VLAN, and adds corresponding broadcasting subdomain information in the configuration information of different user-side port; Described sending module, also be used for described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information is broadcast to the TRILL network, so that other routing bridges in the described TRILL network according to described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information, are determined respectively respectively to broadcast broadcasting corresponding to subdomain information and affiliated vlan information and set with described.
Based on the possible implementation of first, second kind, in the third possible implementation, described device also comprises sets up module, be used for to set up the multicast forward table corresponding with described broadcasting subdomain information and described vlan information, comprise in the described multicast forward table that local multicast transmits and the network side multicast forward table; During transmitting, described local multicast comprises described routing bridge according to described broadcasting subdomain information and the definite user-side port collection information corresponding with described broadcasting subdomain information and described vlan information of described vlan information; The broadcasting tree corresponding with described broadcasting subdomain information and described vlan information that the described network side multicast forward table described broadcasting subdomain information that to be described routing bridge send according to other routing bridges and described vlan information calculate.
Based on first, second, and third kind of possible implementation, in the 4th kind of possible implementation, described sending module, concrete being used for transmitted the user-side port collection information that comprises according to described local multicast, sends the described message that floods; Perhaps with described broadcasting subdomain Information encapsulation in the TRILL frame head, the described message that floods is encapsulated in the TRILL frame, broadcast the message that floods after the described encapsulation by described network side multicast forward table.
The third aspect the invention provides a kind of TRILL network communicating system, comprising: above-mentioned network communication device.
Among the present invention, route bridging is received in the situation of the message that floods, and obtains broadcasting subdomain information and the vlan information of the described message that floods; According to described broadcasting subdomain information and vlan information, determine the multicast forward table of the described message that floods; The described message that floods is copied and sends according to described multicast forward table.Be the broadcasting subdomain information of correspondence of different tenants' configurations of same virtual LAN VLAN because the broadcasting subdomain information that the present invention adopts is routing bridge, therefore can realize in the TRILL network, distributing identical access VLAN for different tenants, make tenant's quantity of TRILL network can break through the restriction of VLAN quantity, satisfy practical application request.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the TRILL network communication method that Fig. 1 provides for one embodiment of the invention;
The structural representation of the TRILL network communication device that Fig. 2 provides for another embodiment of the present invention;
The structural representation of the TRILL network communicating system that Fig. 3 provides for another embodiment of the present invention;
The TRILL network communicating system Organization Chart that Fig. 4 provides for another embodiment of the present invention;
Fig. 5 is the TRILL frame format schematic diagram that the embodiment of the invention adopts;
The structural representation of the TRILL network communication device that Fig. 6 provides for another embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Routing bridge (the English: Routing Bridge that the present embodiment is used, abbreviation RB) connects transparent interconnection (English: Transparent Interconnection of Lots of Links for multichain, abbreviation TRILL) switch in the network, it has two layers of forwarding capability and three layers of routing function simultaneously.
Wherein, (English: Data Link Layer), namely two layers in the inventionthe open systems interconnection reference model are used in data link layer with the Link State route technology, and can not disturb the work of upper strata routing bridge in data link layer in the TRILL network operation.
The schematic flow sheet of the TRILL network communication method that Fig. 1 provides for one embodiment of the invention as shown in Figure 1, specifically comprises:
101, route bridging receiving literary composition if determine that described message is the message that floods, then obtains broadcasting subdomain information and the vlan information of the described message that floods.
Wherein, described broadcasting subdomain information is used for identification broadcasting subdomain, and described vlan information is used for identification VLAN, and described VLAN comprises one or more broadcasting subdomains, the corresponding tenant of each broadcasting subdomain.
In an embodiment of the invention, Fig. 5 is the TRILL frame format schematic diagram that the embodiment of the invention adopts, and as shown in Figure 5, the TRILL frame comprises:
DA: outer purpose medium access control (English: Media Access Control, be called for short MAC);
SA: outer source MAC;
VLAN: outside VLAN label (TAG) head;
Original Frame: primitive frame;
FCS: Frame Check Sequence (English: Frame Check Sequence);
Hop: maximum hop count, hop-by-hop subtracts one, is 0 to abandon, and prevents the loop storm;
The TRILLHeader:TRILL frame head;
Wherein, each parameter-definition in the TRILL frame head:
TRILL Ethertype:TRILL ethernet type field;
V: the version of corresponding trill, current is 0, if discovery is not 0 the direct dropping packets of version meeting;
M: whether message is the sign that floods, and 0 is clean culture, and 1 for flooding;
R (Reserved): reservation bit bit position;
Op-Length:TRILL frame head (English: the TRILL Header) length of a scaling option;
Entrance Ingress nickname and outlet Egress nickname are respectively: the another name of the network equipment of corresponding TRILL entrance and exit; And broadcast when flooding message the routing bridge another name of outlet (English: Rbridge nickname) be the equipment another name of the broadcasting root vertex of use.
Wherein, outside VLAN TAG head is used for filling the affiliated vlan information of broadcasting subdomain that receives this message that floods;
The bit that keeps among the outlet Egress nickname is used for filling the broadcasting subdomain information of this message that floods.
After the route bridging receiving literary composition, can determine whether this message be the message that floods according to the sign of the M in the TRILL frame head, for example M 1 is expressed as the message that floods, and M is 0 expression unicast message.Wherein, the message that floods comprises multicast message or broadcasting packet or unknown unicast message.
As shown in Figure 5, after the route bridging receiving literary composition, can obtain according to VLAN in the TRILL frame vlan information of this message.
In an embodiment of the invention, if described routing bridge receives message by user-side port, then obtain the broadcasting subdomain information of the described message that floods by described user-side port configuration information.During specific implementation:
In order to realize in the TRILL network, distributing identical VLAN for different tenants, forwarding plane is that the different tenants among the same VLAN distribute different broadcasting subdomains, routing bridge can be that different tenants among the same VLAN distribute different broadcasting subdomains according to forwarding plane, for different tenants among the described VLAN identify different broadcasting subdomain information, during specific implementation, for example, suppose the same VLAN that belongs to of tenant A and tenant B, the host of tenant A and tenant B by user-side port collection carry on same routing bridge, this router will keep several bit positions in the Nickname field in the TRILL frame head of encapsulation, and being used for this routing bridge of sign is the different tenants' of same VLAN broadcasting subdomain information.Afterwards, this routing bridge is that different tenants distribute different user-side port among the same VLAN, and in the configuration information of different user-side port, add corresponding broadcasting subdomain information, thereby when routing bridge receives message by user-side port, obtain the broadcasting subdomain information of described message by the configuration information of described user-side port.
Wherein, be after different tenants have configured corresponding broadcasting subdomain information among the same net VLAN at routing bridge, the corresponding relation that this routing bridge can be broadcasted each between subdomain information and the affiliated vlan information thereof is broadcast in the TRILL network, so that other routing bridges in the described TRILL network are according to described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information thereof, calculate respectively with described and respectively broadcast broadcasting corresponding to subdomain information and affiliated vlan information thereof and set, after carrying out beta pruning by each broadcasting subdomain and affiliated VLAN thereof, be issued to Forwarding plane.
In an embodiment of the invention, if described routing bridge receives message by the TRILL network-side port, the broadcasting subdomain information by the described message that floods of broadcasting subdomain acquisition of information that comprises in the TRILL frame head then.During specific implementation:
When if described routing bridge receives message by the TRILL network-side port, this message is the TRILL frame, as shown in Figure 5, routing bridge can be according to the another name of the outlet in the TRILL frame head (English: Egress Rbbridge nickname) parse the broadcasting subdomain information that wherein comprises.
102, according to described broadcasting subdomain information and the vlan information that obtains, determine the multicast forward table of the described message that floods.
In an embodiment of the invention, routing bridge is that different tenants identify different broadcasting subdomain information among the described VLAN, and routing bridge is that different tenants distribute different user-side port among the described VLAN, and in the configuration information of different user-side port, add after the corresponding broadcasting subdomain information, this routing bridge can be set up different multicast forward tables with the vlan information under it according to different broadcasting subdomain information.
Wherein, comprise in each multicast forward table that local multicast transmits and the network side multicast forward table.During transmitting, local multicast comprises described routing bridge according to described broadcasting subdomain information and the definite user-side port collection information corresponding with described broadcasting subdomain information and vlan information of vlan information.The broadcasting tree corresponding with described broadcasting subdomain information and vlan information that the network side multicast forward table described broadcasting subdomain information that to be described routing bridge send according to other routing bridges and vlan information calculate.
103, the described message that floods is copied and sends according to described multicast forward table.
In an embodiment of the invention, the user-side port collection information that routing bridge comprises in can transmitting according to the local multicast of determining sends the described message that floods;
In an embodiment of the invention, routing bridge can send the described message that floods according to the network side multicast forward table of determining, during specific implementation, in order to realize that the message that floods among each tenant only is limited in the broadcasting subdomain under this tenant, as shown in Figure 5, routing bridge will flood the broadcasting subdomain Information encapsulation of message to the outlet of TRILL frame head another name (English: in reservation bit bit position Egress Rbbridge nickname), the described message that floods is encapsulated into primitive frame (English: Original Frame), afterwards, by the message that floods after described network side multicast forward table (i.e. the broadcasting tree corresponding with described broadcasting subdomain information and affiliated vlan information thereof) the described encapsulation of broadcasting, usually, routing bridge in the TRILL network is according to the broadcasting subdomain information of other routing bridge broadcasting and affiliated vlan information thereof, calculating respectively the broadcasting corresponding with described broadcasting subdomain information and affiliated vlan information thereof sets, after need to carrying out beta pruning by broadcasting subdomain and affiliated VLAN thereof, be issued to Forwarding plane, in general, if do not have corresponding broadcasting subdomain information and vlan information on other RB, then other RB do not receive the message that floods, suppose that other RB receive the message that floods, because local broadcasting subdomain information and the vlan information that does not have to configure in the message that floods of these other RB then directly abandons this message.
The TRILL network communicating system Organization Chart that Fig. 4 provides for another embodiment of the present invention as shown in Figure 4, supposes that host host1 ~ host8 belongs to same VLAN; Wherein, host1, host2, host5, host6 belong to tenant A; Host3, host4, host7, host8 belong to tenant B.By the described TRILL network communication method of the embodiment of the invention, can guarantee that the flooding traffic among the tenant A only is limited in the affiliated broadcasting subdomain of tenant A, the flooding traffic among the same tenant B only is limited in the affiliated broadcasting subdomain of tenant B.
When host host1 sends the message that floods, in order to guarantee that flooding traffic among the tenant A only is limited in the broadcasting subdomain under the tenant A, suppose that routing bridge RB 1 has identified respectively corresponding broadcasting subdomain information for different tenant A among the same VLAN and tenant B, the bit position that keeps in specifically can the nickname field by RB1 identifies, further, RB1 is according to the broadcasting subdomain information of tenant A, in the configuration information of the user-side port A corresponding with tenant A, add respectively broadcasting subdomain information corresponding to tenant A, when routing bridge RB1 receives message by user-side port A, according to the configuration information of user-side port A, obtain the broadcasting subdomain information of this message.
Further hypothesis RB1 is that different tenant A and tenant B have identified after the corresponding broadcasting subdomain information among the same VLAN, vlan information according to broadcasting subdomain information corresponding to tenant A and tenant A is determined corresponding multicast forward table, wherein, this multicast forward table comprises that local multicast is transmitted with network multicast and transmits.
Wherein, the user-side port collection corresponding with the broadcasting subdomain information of tenant A that comprises the RB1 configuration during local multicast is transmitted.
As shown in Figure 4, host1, host2, host5, host6 belong to tenant A, be the corresponding same broadcasting subdomain information of host1, host2, host5, host6, wherein, host1, host2 are connected with RB 1, host5, host6 are connected with RB3, after RB1 has identified broadcasting subdomain information corresponding to tenant A, broadcasting subdomain information and the vlan information of tenant A need to be broadcast in the TRILL network.Equally, after RB3 has identified broadcasting subdomain information corresponding to tenant A, also need broadcasting subdomain information and the vlan information of tenant A are broadcast in the TRILL network, so that, calculating the broadcasting corresponding with the broadcasting subdomain information of tenant A and vlan information according to broadcasting subdomain information and the vlan information of the tenant A that receives, set other RB in the TRILL network.Hence one can see that, and the network side multicast forward table that comprises in the multicast forward table that RB1 sets up is that RB1 is according to broadcasting subdomain information and the vlan information broadcasting corresponding with broadcasting subdomain information tenant A and the vlan information tree that calculate of the tenant A of RB3 broadcasting.
Further, RB1 determines to transmit according to local multicast after the multicast forward table, obtain user-side port collection corresponding to tenant A, the port of concentrating by this user-side port sends to this message the host that connects RB1, for example, this message is sent to host host2.
Further, after RB1 is packaged into the TRILL frame with the described message that floods, send described TRILL frame by the broadcasting tree corresponding with the broadcasting subdomain information of tenant A and vlan information.RB1 is packaged into the TRILL frame with the described message that floods and comprises: the broadcasting subdomain Information encapsulation of tenant A is called (English: in reservation bit position Egress Rbridge nickname) to the outlet in the TRILL frame head, the described message that floods is encapsulated into primitive frame (English: Original Frame), and the M in TRILL frame head sign put 1.
Accordingly, after RB3 receives this TRILL frame by network-side port, can determine that according to the M flag bit 1 in the TRILL frame head in this TRILL frame this message is the message that floods, according to the outlet in TRILL frame head another name (English: the reservation bit position Egress Rbridge nickname), obtain the broadcasting subdomain information of this message.Owing to disposing the broadcasting subdomain information of tenant A among the RB3, suppose that RB3 has set up the multicast forward table corresponding with the broadcasting subdomain information of tenant A and vlan information, RB3 is further according to broadcasting subdomain information and the vlan information of the tenant A that obtains, obtain the multicast forward table corresponding with the broadcasting subdomain information of tenant A and vlan information, wherein, comprise local multicast in this multicast forward table and transmit, comprise the user-side port collection corresponding with the broadcasting subdomain information of tenant A of RB3 configuration during this local multicast is transmitted; Further, RB3 transmits according to local multicast, obtains user-side port collection corresponding to tenant A, and the port of concentrating by this user-side port sends to host host5 and host6 with this message.
In the embodiment of the invention, route bridging is received in the situation of the message that floods, and obtains broadcasting subdomain information and the vlan information of the described message that floods; According to described broadcasting subdomain information and vlan information, determine the multicast forward table of the described message that floods; The described message that floods is copied and sends according to described multicast forward table.Be the broadcasting subdomain information of correspondence of different tenants' configurations of same virtual LAN VLAN because the broadcasting subdomain information that the present invention adopts is routing bridge, therefore can realize in the TRILL network, distributing identical access VLAN for different tenants, make tenant's quantity of TRILL network can break through the restriction of VLAN quantity, satisfy practical application request.
The structural representation of the TRILL network communication device that Fig. 2 provides for another embodiment of the present invention; As shown in Figure 2, the TRILL network communication device that the present embodiment provides specifically comprises routing bridge, and described routing bridge comprises:
Acquisition module 21 is used for receiving message, if determine that described message is the message that floods, then obtains broadcasting subdomain information and the virtual LAN VLAN information of the described message that floods, and the described message that floods comprises multicast message or broadcasting packet or unknown unicast message; Described broadcasting subdomain information is used for identification broadcasting subdomain, and described vlan information is used for identification VLAN, and described VLAN comprises one or more broadcasting subdomains, the corresponding tenant of each broadcasting subdomain;
Determination module 22 for the broadcasting subdomain information and the described vlan information that obtain according to described acquisition module, is determined the multicast forward table of the described message that floods;
Sending module 23 is used for the multicast forward table that the described message that floods is determined according to described determination module is copied and sends.
For instance, acquisition module 21 if specifically be used for receiving described message by user-side port, then obtains the broadcasting subdomain information of the described message that floods by the configuration information of described user-side port; If perhaps receive described message by the TRILL network-side port, the broadcasting subdomain information by the described message that floods of broadcasting subdomain acquisition of information that comprises in the TRILL frame head then.
For instance, described device also comprises:
Configuration module 24 is used to that different tenants identify different broadcasting subdomain information among the described VLAN;
Configuration module 24 is used to also that different tenants distribute different user-side port among the described VLAN, and adds corresponding broadcasting subdomain information in the configuration information of different user-side port;
Sending module 23, also be used for described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information is broadcast to the TRILL network, so that other routing bridges in the described TRILL network according to described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information, are determined respectively respectively to broadcast broadcasting corresponding to subdomain information and affiliated vlan information and set with described.
For instance, described device also comprises:
Set up module 25, be used for to set up the multicast forward table corresponding with described broadcasting subdomain information and described vlan information, comprise in the described multicast forward table that local multicast transmits and the network side multicast forward table;
During transmitting, described local multicast comprises described routing bridge according to described broadcasting subdomain information and the definite user-side port collection information corresponding with described broadcasting subdomain information and described vlan information of described vlan information;
The broadcasting tree corresponding with described broadcasting subdomain information and described vlan information that the described network side multicast forward table described broadcasting subdomain information that to be described routing bridge send according to other routing bridges and described vlan information calculate.
Sending module 23, concrete being used for transmitted the user-side port collection information that comprises according to described local multicast, sends the described message that floods; Perhaps with described broadcasting subdomain Information encapsulation in the TRILL frame head, the described message that floods is encapsulated in the TRILL frame, broadcast the message that floods after the described encapsulation by described network side multicast forward table.
In the embodiment of the invention, route bridging is received in the situation of the message that floods, and obtains broadcasting subdomain information and the vlan information of the described message that floods; According to described broadcasting subdomain information and vlan information, determine the multicast forward table of the described message that floods; The described message that floods is copied and sends according to described multicast forward table.Be the broadcasting subdomain information of correspondence of different tenants' configurations of same virtual LAN VLAN because the broadcasting subdomain information that the present invention adopts is routing bridge, therefore can realize in the TRILL network, distributing identical access VLAN for different tenants, make tenant's quantity of TRILL network can break through the restriction of VLAN quantity, satisfy practical application request.
The structural representation of the TRILL network communicating system that Fig. 3 provides for another embodiment of the present invention; As shown in Figure 3, comprise: a plurality of routing bridges, wherein, the TRILL network communication device that provides embodiment illustrated in fig. 2 is provided each routing bridge, related content in the TRILL network communication device that provides embodiment illustrated in fig. 2 is provided in the detailed description of relevant routing bridge, repeats no more.
The structural representation of a kind of TRILL network communication device that Fig. 6 provides for another embodiment of the present invention, as shown in Figure 6, the described TRILL network communication device of the present embodiment is specially routing bridge, and this routing bridge comprises: processor, when this processor operation, carry out following steps:
Receive message, if determine that described message is the message that floods, then obtain broadcasting subdomain information and the virtual LAN VLAN information of the described message that floods, the described message that floods comprises multicast message or broadcasting packet or unknown unicast message; Described broadcasting subdomain information is used for identification broadcasting subdomain, and described vlan information is used for identification VLAN, and described VLAN comprises one or more broadcasting subdomains, the corresponding tenant of each broadcasting subdomain;
According to described broadcasting subdomain information and described vlan information, determine the multicast forward table of the described message that floods;
The described message that floods is copied and sends according to described multicast forward table.
In the possible implementation of the first, the described broadcasting subdomain information of obtaining the described message that floods comprises:
If receive described message by user-side port, then obtain the broadcasting subdomain information of the described message that floods by the configuration information of described user-side port;
If receive described message by the TRILL network-side port, the broadcasting subdomain information by the described message that floods of broadcasting subdomain acquisition of information that comprises in the TRILL frame head then.
Based on the possible implementation of the first, in the possible implementation of the second, obtain by described user-side port configuration information before the broadcasting subdomain information of the described message that floods, comprising:
For different tenants among the described VLAN identify different broadcasting subdomain information;
For different tenants among the described VLAN distribute different user-side port, and in the configuration information of different user-side port, add corresponding broadcasting subdomain information;
Described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information is broadcast in the TRILL network, so that other routing bridges in the described TRILL network according to described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information, are determined respectively respectively to broadcast broadcasting corresponding to subdomain information and affiliated vlan information and set with described.
Based on the possible implementation of first, second kind, in the third possible implementation, according to described broadcasting subdomain information and described vlan information, determine to comprise before the multicast forward table of the described message that floods:
Set up the multicast forward table corresponding with described broadcasting subdomain information and described vlan information, comprise in the described multicast forward table that local multicast transmits and the network side multicast forward table;
During transmitting, described local multicast comprises according to described broadcasting subdomain information and the definite user-side port collection information corresponding with described broadcasting subdomain information and described vlan information of described vlan information;
Described network side multicast forward table is the broadcasting tree corresponding with described broadcasting subdomain information and described vlan information that the described broadcasting subdomain information that sends according to other routing bridges and described vlan information calculate.
Based on first, second, and third kind of possible implementation, in the 4th kind of possible implementation, the described message that floods is copied and sends according to described multicast forward table, comprising:
The user-side port collection information that comprises in transmitting according to described local multicast sends the described message that floods;
Described broadcasting subdomain Information encapsulation to the TRILL frame head, is encapsulated into the described message that floods in the TRILL frame, broadcasts the message that floods after the described encapsulation by described network side multicast forward table.
Particularly, described routing bridge for example also comprises internal memory, bus, wherein except comprising processor, and processor is connected with internal memory by bus.
In the embodiment of the invention, route bridging is received in the situation of the message that floods, and obtains broadcasting subdomain information and the vlan information of the described message that floods; According to described broadcasting subdomain information and vlan information, determine the multicast forward table of the described message that floods; The described message that floods is copied and sends according to described multicast forward table.Be the broadcasting subdomain information of correspondence of different tenants' configurations of same virtual LAN VLAN because the broadcasting subdomain information that the present invention adopts is routing bridge, therefore can realize in the TRILL network, distributing identical access VLAN for different tenants, make tenant's quantity of TRILL network can break through the restriction of VLAN quantity, satisfy practical application request.
The those skilled in the art can be well understood to, and is the convenience described and succinct, the system of foregoing description, and the specific works process of device and unit can with reference to the corresponding process among the preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above only is schematic, for example, the division of described unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically or other form.
Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics of unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, the form that also can adopt hardware to add SFU software functional unit realizes.
The above-mentioned integrated unit of realizing with the form of SFU software functional unit can be stored in the form of code in the computer read/write memory medium.Above-mentioned code storage comprises that some instructions are used so that processor or hardware circuit are carried out the part or all of step of the described method of each embodiment of the present invention in a computer-readable recording medium.And aforesaid storage medium comprises: the miniature high power capacity mobile storage disc that need not phisical drive of USB (universal serial bus), portable hard drive, read-only memory (English: Read-Only Memory, abbreviation ROM), the various media that can be program code stored such as random access memory (English: Random Access Memory, abbreviation RAM), magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the protection range of various embodiments of the present invention technical scheme.

Claims (11)

1. a TRILL network communication method is characterized in that, comprising:
Route bridging receiving literary composition if determine that described message is the message that floods, then obtains broadcasting subdomain information and the virtual LAN VLAN information of the described message that floods, and the described message that floods comprises multicast message or broadcasting packet or unknown unicast message; Described broadcasting subdomain information is used for identification broadcasting subdomain, and described vlan information is used for identification VLAN, and described VLAN comprises one or more broadcasting subdomains, the corresponding tenant of each broadcasting subdomain;
According to described broadcasting subdomain information and described vlan information, determine the multicast forward table of the described message that floods;
The described message that floods is copied and sends according to described multicast forward table.
2. method according to claim 1 is characterized in that, the described broadcasting subdomain information of obtaining the described message that floods comprises:
If described routing bridge receives described message by user-side port, then obtain the broadcasting subdomain information of the described message that floods by the configuration information of described user-side port;
If described routing bridge receives described message by the TRILL network-side port, the broadcasting subdomain information by the described message that floods of broadcasting subdomain acquisition of information that comprises in the TRILL frame head then.
3. method according to claim 2 is characterized in that, the configuration information by described user-side port obtains before the broadcasting subdomain information of the described message that floods, and described method also comprises:
Described routing bridge is that different tenants identify different broadcasting subdomain information among the described VLAN;
Described routing bridge is that different tenants distribute different user-side port among the described VLAN, and adds corresponding broadcasting subdomain information in the configuration information of different user-side port;
Described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information is broadcast in the TRILL network, so that other routing bridges in the described TRILL network according to described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information, are determined respectively respectively to broadcast broadcasting corresponding to subdomain information and affiliated vlan information and set with described.
4. each described method is characterized in that according to claim 1-3, according to described broadcasting subdomain information and described vlan information, determines to comprise before the multicast forward table of the described message that floods:
Described routing bridge is set up the multicast forward table corresponding with described broadcasting subdomain information and described vlan information, comprises in the described multicast forward table that local multicast transmits and the network side multicast forward table;
During transmitting, described local multicast comprises described routing bridge according to described broadcasting subdomain information and the definite user-side port collection information corresponding with described broadcasting subdomain information and described vlan information of described vlan information;
The broadcasting tree corresponding with described broadcasting subdomain information and described vlan information that the described network side multicast forward table described broadcasting subdomain information that to be described routing bridge send according to other routing bridges and described vlan information calculate.
5. method according to claim 4 is characterized in that, the described message that floods is copied and sends according to described multicast forward table, comprising:
The user-side port collection information that described routing bridge comprises in transmitting according to described local multicast sends the described message that floods;
Described routing bridge in the TRILL frame head, is encapsulated into described broadcasting subdomain Information encapsulation in the TRILL frame with the described message that floods, and broadcasts the message that floods after the described encapsulation by described network side multicast forward table.
6. a TRILL network communication device comprises routing bridge, it is characterized in that, described routing bridge comprises:
Acquisition module is used for receiving message, if determine that described message is the message that floods, then obtains broadcasting subdomain information and the virtual LAN VLAN information of the described message that floods, and the described message that floods comprises multicast message or broadcasting packet or unknown unicast message; Described broadcasting subdomain information is used for identification broadcasting subdomain, and described vlan information is used for identification VLAN, and described VLAN comprises one or more broadcasting subdomains, the corresponding tenant of each broadcasting subdomain;
Determination module for the broadcasting subdomain information and the described vlan information that obtain according to described acquisition module, is determined the multicast forward table of the described message that floods;
Sending module is used for the multicast forward table that the described message that floods is determined according to described determination module is copied and sends.
7. device according to claim 6 is characterized in that, described acquisition module if specifically be used for receiving described message by user-side port, then obtains the broadcasting subdomain information of the described message that floods by the configuration information of described user-side port; If perhaps receive described message by the TRILL network-side port, the broadcasting subdomain information by the described message that floods of broadcasting subdomain acquisition of information that comprises in the TRILL frame head then.
8. device according to claim 7 is characterized in that, also comprises:
Configuration module is used to that different tenants identify different broadcasting subdomain information among the described VLAN;
Described configuration module is used to also that different tenants distribute different user-side port among the described VLAN, and adds corresponding broadcasting subdomain information in the configuration information of different user-side port;
Described sending module, also be used for described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information is broadcast to the TRILL network, so that other routing bridges in the described TRILL network according to described corresponding relation of respectively broadcasting between subdomain information and the affiliated vlan information, are determined respectively respectively to broadcast broadcasting corresponding to subdomain information and affiliated vlan information and set with described.
9. the described device of any one is characterized in that according to claim 6-8, also comprises:
Set up module, be used for to set up the multicast forward table corresponding with described broadcasting subdomain information and described vlan information, comprise in the described multicast forward table that local multicast transmits and the network side multicast forward table;
During transmitting, described local multicast comprises described routing bridge according to described broadcasting subdomain information and the definite user-side port collection information corresponding with described broadcasting subdomain information and described vlan information of described vlan information;
The broadcasting tree corresponding with described broadcasting subdomain information and described vlan information that the described network side multicast forward table described broadcasting subdomain information that to be described routing bridge send according to other routing bridges and described vlan information calculate.
10. device according to claim 9 is characterized in that, described sending module, and concrete being used for transmitted the user-side port collection information that comprises according to described local multicast, sends the described message that floods; Perhaps with described broadcasting subdomain Information encapsulation in the TRILL frame head, the described message that floods is encapsulated in the TRILL frame, broadcast the message that floods after the described encapsulation by described network side multicast forward table.
11. a TRILL network communicating system is characterized in that, comprising: such as each described TRILL network communication device of claim 6-10.
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