CN104702506B - A kind of message transmitting method, network node and message transfer system - Google Patents

Abstract

The embodiment of the invention discloses a kind of message transmitting method, network node and message transfer systems, wherein, network node is concentrated to receive the message that routing bridge device in source edge is sent by TRILL unicast packaged types, wherein above-mentioned message is broadcasting packet or unknown unicast message or multicast message；Above-mentioned concentration network node determines object edge routing bridge cluster tool according to multicast forwarding, wherein, above-mentioned target routing bridge cluster tool does not include that above-mentioned source edge route bridge device, and above-mentioned multicast forwarding includes the mark that above-mentioned concentration network node institute each edge in a network route bridge device；Above-mentioned concentration network node is sent to the routing bridge device that above-mentioned object edge routing bridge cluster tool is included one by one by TRILL unicast packaged types, by above-mentioned message.Technical solution provided by the invention can effectively save multicast resource, improve the scalability of system.

Description

A kind of message transmitting method, network node and message transfer system

Technical field

The present invention relates to a kind of communication field more particularly to message transmitting method, network node and message transfer systems.

Background technology

Transparent interconnection of lots of links interconnection (English：Transparent Interconnection of Lots of Link, abbreviation： TRILL) agreement is a kind of Routing Protocol calculated based on link state, and the equipment for running TRILL protocol is called routing bridge device (English：Route Bridge, abbreviation：RB), the network being made of RB nodes is called TRILL network.RB sections in TRILL network Identifier (Identity, abbreviation of the point using alias (nickname) as RB nodes：ID it) is identified, nickname must ensure The whole network is unique, i.e., the nickname of each RB nodes is different.

Pass through reverse path forwarding (English in TRILL network：Reverse Path Forwarding, abbreviation：RPF it) examines Look into prevent the messages such as broadcast, unknown unicast and multicast loop (for ease of description, by broadcasting packet, unknown unicast message or Multicast message is referred to as BUM messages).The mechanism of rpf check is to check the BUM when TRILL network side receives BUM messages Whether message enters from specified inbound port, and the BUM messages only entered from specified inbound port, TRILL network side just will continue to look into It looks for TRILL multicast forwardings list item and duplication forwarding is carried out to the BUM messages, otherwise, which will be dropped.

In general, server or customer edges (English：Customer Edge, abbreviation：CE) equipment passes through multilink bundling group (English：Link Aggregation Group, abbreviation：LAG) dual homed access or return are linked into more edge of table RB nodes more, number Certain uplink is randomly choosed by Hash (Hash) algorithm according to message and accesses TRILL network, to prevent remote edge RB nodes In medium access control (English：Media Access Control, abbreviation：Saltus step is generated when MAC) learning, needs to connect dual homed Enter or return more edge of table RB node virtuals of access at a vRB node more, and uses a virtual alias (vnickname) To identify the vRB nodes.When dual homed access or return be linked into more edge of table RB nodes when, rpf check can cause to save from vRB The BUM messages that certain inbound ports of point enter are dropped, for example, as shown in Figure 1, it is assumed that server or CE by returning more It is linked into RB1 nodes, RB2 nodes and RB3 nodes, RB1 nodes, RB2 nodes and RB3 nodes are invented one and be identified as The vRB nodes of " vnickname1 ", multicast distribution root vertex RBx is identified by " vnickname root1 ", in RBx node needles Rpf check table as shown in Table 1 is generated to vnickname1：

Table 1

Server or CE select certain chain road direction RBx node to send BUM messages, as shown in Table 1, only from RB1 nodes Port port1 enter BUM messages carry out being considered as just legal BUM messages when rpf check and being turned at RBx nodes RBn nodes are sent to, and the BUM messages entered from the port port3 of port port2 and the RB3 node of RB2 nodes will at RBx Because can not be dropped by rpf check.

In view of the above-mentioned problems, being currently suggested a kind of collaboration multicast tree (English：Coordinated Multicast Trees, abbreviation：CMT) scheme, CMT schemes generate more multicast distribution trees, different multicasts for the actual physics node of vRB Distribution tree generates different rpf check tables, solves the problems, such as that dual homed access or return access rpf check failure more with this.It is based on In CMT schemes, as shown in Fig. 2, 3 multicast distribution trees are generated for RB1 nodes, RB2 nodes and RB3 nodes, in RBx node needles Rpf check table as shown in Table 2 is generated to vnickname1：

Table 2

In this way, can be lost to avoid the BUM messages entered from certain inbound ports of vRB nodes when RBx carries out rpf check The problem of abandoning.

However, by above-mentioned CMT schemes it is found that the number of multicast distribution tree will at least be equal to maximum vRB nodes in network Actual node number, such as four need four multicast distribution trees when returning access.Multicast distribution tree it is increased amount of simultaneously, largely Multicast resource will also be consumed, (the English for example, virtual LAN：Virtual Local Area Network, abbreviation： VLAN needed in) equipment provide multicast resource be：The number of VLAN number * multicast distribution tree；In Internet Group Management Protocol (English：Internet Group Management Protocol, abbreviation：IGMP it) spies upon, i.e., IGMP Snooping multicasts are about In beam mechanism, it is the number * multicast group quantity of VLAN number * multicast distribution tree to need the multicast resource that equipment provides.Due to setting Standby multicast resource is usually than relatively limited, therefore, if multicast resource is largely consumed because of the increase of multicast distribution number, business Offer ability (such as multicast service, VLAN quantity) will also be restricted so that the scalability of system will also be made About.

Invention content

The present invention provides a kind of message transmitting method, network node and message transfer systems, for saving multicast resource, The scalability of raising system.

One aspect of the present invention provides a kind of message transmitting method, including：

It concentrates network node to receive source edge routing bridge device and interconnects TRILL unicast packaged types hair by transparent interconnection of lots of links The message sent, wherein above-mentioned message is broadcasting packet or unknown unicast message or multicast message；

Above-mentioned concentration network node determines object edge routing bridge cluster tool according to multicast forwarding, wherein above-mentioned mesh It includes that above-mentioned source edge route bridge device to mark routing bridge cluster tool not, and above-mentioned multicast forwarding includes above-mentioned concentration network node In a network each edge routing bridge device mark；

Above-mentioned concentration network node is sent to above-mentioned target side one by one by TRILL unicast packaged types, by above-mentioned message The routing bridge device that edge routing bridge cluster tool is included.

Based on first aspect present invention, in the first possible implementation,

It is above-mentioned object edge routing bridge cluster tool is determined according to multicast forwarding before, the above method further includes：

Receive above-mentioned concentration network node in a network each edge routing bridge device Link State Packet；

According to the above-mentioned concentration network node of reception each edge in a network route the link state report of bridge device Text generates above-mentioned multicast forwarding.

The first possible realization method based on first aspect present invention, in second of possible realization method, on Stating Link State Packet includes：Edge route the VLAN ID of the virtual LAN of bridge device access, and above-mentioned multicast turns It delivers and specifically includes：Above-mentioned concentration network node in a network each edge routing bridge device mark and virtual LAN The correspondence of mark；

It is above-mentioned that object edge routing bridge cluster tool is determined according to above-mentioned multicast forwarding, including：

The VLAN ID in above-mentioned message is obtained, according to above-mentioned VLAN ID and above-mentioned multitransmission Table determines that the edge for accessing the virtual LAN where above-mentioned message route bridge device；

Wherein, above-mentioned object edge routing bridge cluster tool is as the virtual local area where the above-mentioned message of above-mentioned access determined The edge routing bridge device of net is constituted.

The first possible realization method based on first aspect present invention, in the third possible realization method, on Stating Link State Packet includes：Edge route the VLAN ID and edge routing bridge of the virtual LAN of bridge device access The mark in the Layer 2 Multicast domain that equipment is added, then above-mentioned multicast forwarding specifically include：Network where above-mentioned concentration network node In the Layer 2 Multicast domain that is added of each edge routing mark of bridge device, VLAN ID and edge routing bridge device Mark correspondence；

It is above-mentioned that object edge routing bridge cluster tool is determined according to multicast forwarding, including：

The VLAN ID in above-mentioned message and the mark in Layer 2 Multicast domain are obtained, with above-mentioned virtual LAN Mark is combined as indexing with the mark in Layer 2 Multicast domain, and the void where accessing above-mentioned message is determined according to above-mentioned multicast forwarding Quasi- LAN, and the edge that the Layer 2 Multicast domain of above-mentioned message access is added route bridge device；

Wherein, above-mentioned object edge routing bridge cluster tool is as the virtual local area where the above-mentioned message of above-mentioned access determined Net, and the edge routing bridge device that the Layer 2 Multicast domain of above-mentioned message access is added is constituted.

The first possible realization method or this hair based on first aspect present invention either first aspect present invention Second of possible realization method of bright first aspect, alternatively, the third possible realization method of first aspect present invention, In 4th kind of possible realization method, the above method further includes：

Above-mentioned concentration network node floods in above-mentioned network extends Link State Packet, above-mentioned extension Link State Packet The attribute of above-mentioned concentration network node and super alias are carried, it is multiple that above-mentioned attribute shows that above-mentioned concentration network node is supported to concentrate Function processed, above-mentioned super alias are that above-mentioned concentration network node is concentrating the alias for replicating and being used under scene.

The 4th kind of possible realization method based on first aspect present invention, in the 5th kind of possible realization method, on It states and network node is concentrated to receive the report that edge routing bridge device in source interconnects the transmission of TRILL unicast packaged types by transparent interconnection of lots of links Text includes later：

Judge whether the outlet alias for the message that above-mentioned TRILL unicasts packaged type is sent is above-mentioned super alias, if Above-mentioned outlet alias is above-mentioned super alias, and execution is above-mentioned to determine object edge routing bridge cluster tool according to multicast forwarding Step.

The first possible realization method or this hair based on first aspect present invention either first aspect present invention Second of possible realization method of bright first aspect, alternatively, the third possible realization method of first aspect present invention, In 6th kind of possible realization method, if including to be connect by dual homed access or return in above-mentioned object edge routing bridge cluster tool more The virtual flow-line bridge device that the more routing bridge devices entered fictionalize, then it is above-mentioned that above-mentioned message is sent to above-mentioned target side one by one The routing bridge device that edge routing bridge cluster tool includes, including：

It is sent to the access of above-mentioned dual homed or more wherein one routing bridge devices routeing in bridge device for returning access more Above-mentioned message；Or

It is sent to the access of above-mentioned dual homed or the virtual flow-line bridge device for returning more routing bridge equipment of access to form more State message.

Second aspect of the present invention provides a kind of network node, including：

First receiving unit interconnects TRILL unicasts encapsulation for receiving source edge routing bridge device by transparent interconnection of lots of links The message that mode is sent, wherein above-mentioned message is broadcasting packet or unknown unicast message or multicast message；

Determination unit, for determining object edge routing bridge cluster tool according to multicast forwarding, wherein above-mentioned target road Do not include that above-mentioned source edge route bridge device by bridge device set, above-mentioned multicast forwarding includes network where above-mentioned network node In each edge routing bridge device mark；

First transmission unit, for by TRILL unicast packaged types, the message that above-mentioned receiving unit is received to be one by one It is sent to the routing bridge device that the object edge routing bridge cluster tool that above-mentioned determination unit determines is included.

Based on second aspect of the present invention, in the first possible implementation,

Above-mentioned network node further includes：

Second receiving unit, for receive above-mentioned concentration network node each edge in a network route bridge device Link State Packet；

Generation unit, above-mentioned network node for being received according to above-mentioned second receiving unit each side in a network Edge route the Link State Packet of bridge device, generates above-mentioned multicast forwarding.

The first possible realization method based on second aspect of the present invention is stated in second of possible realization method Link State Packet includes：Edge route the VLAN ID of the virtual LAN of bridge device access, above-mentioned multitransmission Table specifically includes：Above-mentioned concentration network node each edge routing bridge device in a network mark and virtual local area network mark The correspondence of knowledge；

Above-mentioned determination unit is specifically used for：The VLAN ID in above-mentioned message is obtained, according to above-mentioned virtual local area Network mark is known and above-mentioned multicast forwarding determines that the edge for accessing the virtual LAN where above-mentioned message route bridge device；

Wherein, above-mentioned object edge routing bridge cluster tool is as the virtual local area where the above-mentioned message of above-mentioned access determined The edge routing bridge device of net is constituted.

The first possible realization method based on second aspect of the present invention, in the third possible realization method, on Stating Link State Packet includes：Edge route the VLAN ID and edge routing bridge of the virtual LAN of bridge device access The mark in the Layer 2 Multicast domain of equipment access, then above-mentioned multicast forwarding specifically include：Network where above-mentioned concentration network node In the Layer 2 Multicast domain that is added of each edge routing mark of bridge device, VLAN ID and edge routing bridge device Mark correspondence；

Above-mentioned determination unit is specifically used for：Obtain the VLAN ID in above-mentioned message and the mark in Layer 2 Multicast domain Know, is combined as indexing with the mark of above-mentioned virtual LAN and the mark in Layer 2 Multicast domain, it is true according to above-mentioned multicast forwarding Surely the virtual LAN where above-mentioned message is accessed, and the edge routing bridge that the Layer 2 Multicast domain of above-mentioned message access is added is set It is standby；

Wherein, above-mentioned object edge routing bridge cluster tool is as the virtual local area where the above-mentioned message of above-mentioned access determined Net, and the edge routing bridge device that the Layer 2 Multicast domain of above-mentioned message access is added is constituted.

The first possible realization method or this hair based on second aspect of the present invention either second aspect of the present invention Second of possible realization method of bright second aspect or the third possible realization method of second aspect of the present invention, In four kinds of possible realization methods, above-mentioned network node further includes：

Second transmission unit, for the extension Link State Packet that floods in above-mentioned network, above-mentioned extension link state report Text carries the attribute of above-mentioned concentration network node and super alias, and above-mentioned attribute shows that above-mentioned concentration network node is supported to concentrate Copy function, above-mentioned super alias are that above-mentioned concentration network node is concentrating the alias for replicating and being used under scene.

The 4th kind of possible realization method based on second aspect of the present invention, in the 5th kind of possible realization method, on Stating network node further includes：

Judging unit is interconnected for receiving source edge routing bridge device in above-mentioned first receiving unit by transparent interconnection of lots of links When the message that TRILL unicast packaged types are sent, judge that the outlet alias for the message that above-mentioned TRILL unicasts packaged type is sent is No is above-mentioned super alias；

Above-mentioned determination unit is triggered when the judging result of above-mentioned judging unit is to be.

The first possible realization method or this hair based on second aspect of the present invention either second aspect of the present invention Second of possible realization method of bright second aspect or the third possible realization method of second aspect of the present invention, In six kinds of possible realization methods, above-mentioned first transmission unit is additionally operable to：It is wrapped when in above-mentioned object edge routing bridge cluster tool When containing by dual homed access or the virtual flow-line bridge device for returning more routing bridge devices of access to fictionalize, connect to above-mentioned dual homed more Enter or more wherein one routing bridge devices routeing in bridge device of access is returned to send above-mentioned message more, alternatively, to above-mentioned Dual homed accesses or the virtual flow-line bridge device for returning more routing bridge equipment of access to form sends above-mentioned message more.

Third aspect present invention provides a kind of message transfer system, including：

Network node and more than two edges is concentrated to route bridge device；

Wherein, above-mentioned concentration network node is in consolidated network with above-mentioned two with top edge routing bridge equipment；

Any one of the above-mentioned for example above-mentioned second aspect of the present invention of concentration network node network node.

Therefore edges Zhong Yuan of the present invention routing bridge device by TRILL unicasts packaged type to concentrating network node Message is sent, and concentrates network node by TRILL unicast packaged types, the message received is sent to target side one by one The routing bridge device that edge routing bridge cluster tool is included, since target routing bridge cluster tool does not include that above-mentioned source edge is route Bridge device it is therefore not necessary to can guarantee that message is not in loop in transmission process by rpf check, and concentrates network section The mode that point unicast reception and unicast are sent can effectively reduce the quantity of multicast distribution tree, to save multicast resource, In the case of same hardware multicast resource so that system can support more multicast services, improve the scalability of system.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art With obtain other attached drawings according to these attached drawings.

Fig. 1 is the application scenarios structural schematic diagram of existing TRILL network；

Fig. 2 is the TRILL network application scenarios structural schematic diagram based on CMT schemes；

Fig. 3 is message transmitting method one embodiment flow diagram provided by the invention；

Fig. 4-a are a kind of TRILL network application scenarios structural schematic diagram based on message transmitting method provided by the invention；

Fig. 4-b are a kind of message under the TRILL network shown in Fig. 4-a based on message transmitting method provided by the invention Transmission flows to schematic diagram；

Fig. 4-c are another report under the TRILL network shown in Fig. 4-a based on message transmitting method provided by the invention Text transmission flows to schematic diagram；

Fig. 4-d are another report under the TRILL network shown in Fig. 4-a based on message transmitting method provided by the invention Text transmission flows to schematic diagram；

Fig. 5-a are another TRILL network application scenarios structural representation based on message transmitting method provided by the invention Figure；

Fig. 5-b are a kind of message under the TRILL network shown in Fig. 5-a based on message transmitting method provided by the invention Transmission flows to schematic diagram；

Fig. 6 is network node one embodiment structural schematic diagram provided by the invention；

Fig. 7 is another example structure schematic diagram of network node provided by the invention；

Fig. 8 is network node further embodiment structural schematic diagram provided by the invention；

Fig. 9 is message transfer system one embodiment structural schematic diagram provided by the invention.

Specific implementation mode

An embodiment of the present invention provides a kind of message transmitting method, network node and message transfer systems.

In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described reality It is only a part of the embodiment of the present invention to apply example, and not all embodiments.Based on the embodiments of the present invention, the common skill in this field Each other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects It encloses.

A kind of message transmitting method provided in an embodiment of the present invention is described below, referring to Fig. 3, the present invention is implemented Message transmitting method in example, including：

301, network node is concentrated to receive the message that edge RB in source is sent by TRILL unicast packaged types.

In the embodiment of the present invention, edge RB refers to the RB being arranged on TRILL network edge.When edge, RB, which is received, comes from Server or customer edge devices (English：Customer Edge, abbreviation：The messages such as broadcast, unknown unicast and multicast CE) (i.e. BUM messages), and when knowing that above-mentioned concentration network node is supported to concentrate copy function, edge RB is encapsulated by TRILL unicasts The BUM messages that mode is transmitted and received to above-mentioned concentration network node, specifically, edge RB encapsulates unicast on BUM messages The tunnels TRILL head, the tunnels unicast TRILL head includes source nickname and target nickname, wherein source nickname is the side The nickname of edge RB, target nickname are the super nickname of above-mentioned concentration network node.

It should be noted that above-mentioned concentration network node gather around in a network there are one common nickname and one it is super nickname.Above-mentioned common nickname is identical as the nickname effects of other equipment.Above-mentioned super nickname is to concentrate Network node is concentrating the alias for replicating and being used under scene, dedicated for concentrating copy function.Above-mentioned concentration network node is upper The extension Link State Packet that floods in network is stated, is carried in the extension Link State Packet that above-mentioned concentration network node floods above-mentioned The attribute of network node and above-mentioned super nickname are concentrated, it is multiple that above-mentioned attribute shows that above-mentioned concentration network node is supported to concentrate Function processed so that edge RB when listening to the extension Link State Packet that above-mentioned concentration network node floods, can know on It states and network node is concentrated to support that copy function and above-mentioned concentration network node is concentrated to concentrate the alias for replicating and using under scene.

The scheme that above-mentioned concentration replicates refers to：Edge RB nodes by TRILL unicasts packaged type rather than multicast mode to Network node is concentrated to send BUM messages, when above-mentioned concentration network node receives the BUM messages, by the unicast of the BUM messages Target nickname in the tunnels TRILL head can determine that above-mentioned message is to need to do the message concentrated and replicated, above-mentioned concentration network BUM messages are sent to other edges RB by node by way of concentrating and replicating by more parts of unicast messages.

Optionally, the Link State Packet that edge RB is sent, the extension that RB is sent at edge are extended in the embodiment of the present invention The concentration copy function sign of edge RB is carried in Link State Packet.Above-mentioned concentration network node is by monitoring edge RB It is multiple to determine whether edge RB has concentration for the concentration copy function sign carried in the extension Link State Packet of transmission Function processed.

Wherein, it should be noted that if server or CE are to access this in such a way that dual homed accesses or returns access more Edge RB, then the source nickname in the tunnels above-mentioned unicast TRILL head should be：By above-mentioned server (or CE) dual homed access or The vnickname of the virtual RB for returning more edge of table RB of access to fictionalize, target nickname are still above-mentioned concentration network section more The super nickname of point.

302, network node is concentrated to determine object edge RB set according to multicast forwarding.

Wherein, above-mentioned target RB set does not include above-mentioned source edge RB, and above-mentioned multicast forwarding includes above-mentioned concentration network Node each edge RB in a network mark.

Multicast forwarding in the embodiment of the present invention can be received the concentration network section in advance by above-mentioned concentration network node Point each edge RB in a network Link State Packet, and according to the link state of the above-mentioned each edge RB received Message generates.Therefore, multicast forwarding includes necessarily source edge RB, and in this case, it is right that above-mentioned concentration network node passes through Edge RB in source carries out beta pruning processing so that determining object edge RB set does not include source edge RB.

In a kind of application scenarios, above-mentioned concentration network node monitor its each edge RB in a network link shape State message, wherein in Link State Packet comprising edge RB access VLAN VLAN mark, above-mentioned concentration network node according to The Link State Packet of the above-mentioned each edge RB listened to generates multicast forwarding, and multicast forwarding includes：Above-mentioned concentration Network node the mark and VLAN marks of each edge RB in a network correspondence.When above-mentioned concentration network node connects When the message that receipts source edge RB is sent by TRILL unicast packaged types, the VLAN marks in the message are obtained, according to above-mentioned VLAN is identified and above-mentioned multicast forwarding determines the edge RB for accessing the VLAN where above-mentioned message, above-mentioned object edge RB collection Conjunction is made of the edge RB of the VLAN where the determining above-mentioned message of above-mentioned access.

In another application scenarios, above-mentioned concentration network node monitor its each edge RB in a network link State message, wherein the VLAN marks of the VLAN comprising edge RB accesses in Link State Packet and two layers of edge RB additions The mark of multicast domain, above-mentioned concentration network node generate multicast according to the Link State Packet of the above-mentioned each edge RB listened to Forwarding table, multicast forwarding include：Above-mentioned concentration network node each edge RB in a network mark, VLAN marks And the correspondence of the mark in the Layer 2 Multicast domain of edge RB additions.Pass through when above-mentioned concentration network node receives source edge RB When the message that TRILL unicast packaged types are sent, the mark of the VLAN marks and Layer 2 Multicast domain in the message is obtained, with VLAN marks are combined as indexing with the mark in Layer 2 Multicast domain, are determined and are accessed where the message according to above-mentioned multicast forwarding VLAN, and the edge RB in the Layer 2 Multicast domain of message access is added, above-mentioned object edge RB set is by determining above-mentioned access VLAN where the message, and the edge RB that the Layer 2 Multicast domain of message access is added is constituted.

It should be noted that multicast forwarding in the embodiment of the present invention by miscellaneous equipment or can also pass through other sides By the way that wireless or wiredly mode is sent to above-mentioned concentration network node after formula generation, it is not construed as limiting herein.

Optionally, when in step 301 concentrate network node receive source edge RB pass through TRILL unicast packaged types send out After the message sent, judge whether the outlet alias for the message that above-mentioned TRILL unicasts packaged type is sent is above-mentioned super alias, if It is just to execute step 302 and subsequent step, if it is not, then terminate this flow, or abandons the message or according to traditional Message processing Flow (such as CMT schemes) handles the message, is not construed as limiting herein.

303, it concentrates network node by TRILL unicast packaged types, above-mentioned message is sent to above-mentioned target side one by one Edge RB gathers included RB.

After step 302 determines object edge RB set, above-mentioned concentration network node by TRILL unicast packaged types, Above-mentioned message is sent to above-mentioned object edge RB one by one and gathers included RB.

Further, if including to be accessed by dual homed or return more RB of access to fictionalize more in above-mentioned object edge RB set Virtual RB, then above-mentioned concentration network node accessed to above-mentioned dual homed or return access more by TRILL unicast packaged types A wherein RB in more RB sends above-mentioned message, alternatively, being accessed to above-mentioned dual homed or returning more RB of access to form more Virtual RB send above-mentioned message.

Optionally, it accesses or returns more to above-mentioned dual homed by TRILL unicast packaged types in above-mentioned concentration network node During a wherein above-mentioned message of RB transmissions in more RB of access, above-mentioned concentration network node uses equal cost multipath (ECMP, Equal-Cost Multipath Routing) mechanism includes from above-mentioned concentration network node to above-mentioned virtual RB A link is chosen in the multilink of more edge of table RB, and above-mentioned message is sent to the edge RB of selected chain road, alternatively, on It states the more edge of table RB for concentrating network node that can also include from above-mentioned virtual RB by other mechanism or at random and selects one Edge RB sends the message, is not construed as limiting herein.

Optionally, it concentrates network node when above-mentioned message is sent to the included RB of object edge RB set, keeps Source nickname values in above-mentioned message are constant, that is, it is the nickname of above-mentioned source edge RB to keep source nickname values so that For RB in object edge RB set when receiving the message, the MAC address entries acquired are the nickname of above-mentioned source edge RB, and It is not the nickname for concentrating network node.

It should be noted that the concentration network node in the embodiment of the present invention is RB nodes.

Therefore Zhong Yuan of embodiment of the present invention edge RB are sent out by TRILL unicasts packaged type to concentration network node It delivers newspaper text, and concentrates network node by TRILL unicast packaged types, the message received is sent to object edge one by one RB gathers included RB, since target RB set does not include above-mentioned source edge RB, it is therefore not necessary to can be protected by rpf check It is not in loop in transmission process to demonstrate,prove message, and the mode for concentrating network node unicast reception and unicast to send can be effective The quantity for reducing multicast distribution tree, to save multicast resource, in the case of same hardware multicast resource so that system energy It enough supports more multicast services, improves the scalability of system.

Below with a concrete application scene, the message transmitting method in the embodiment of the present invention is described.Assuming that in the presence of The above-mentioned TRILL network topological diagram such as Fig. 4-a, in Fig. 4-a, RB1~RB6 is edge RB, and RBx is to concentrate network node, In RBx and RB1~RB6 access consolidated networks, it is assumed that the alias of RB1~RB6 is respectively nickname1~nickname6, RBx Super alias be nicknameroot.Server 1 accesses RB1 and RB2 by dual homed, then RB1 and RB2 invents a logic VRB, it is assumed that the alias of vRB is vnickname.In embodiments of the present invention, RBx, RB1~RB6 support to concentrate copy function.

RBx monitors the Link State Packet of RB1~RB6, and generates multicast as shown in table 3 according to Link State Packet and turn It delivers：

Table 3

In the embodiment of the present invention, server 1 randomly chooses certain uplink by HASH algorithms and sends BUM messages, it is assumed that Selection RB1 sends the BUM messages.RB1 is by monitoring the concentration network node carried in the extension Link State Packet that RBx floods Attribute know the RBx support concentrate copy function pass through TRILL after RB1 encapsulates the tunnels unicast TRILL head on BUM messages BUM messages are sent to RBx by unicast packaged type, and the tunnels unicast TRILL head format is as shown in table 4：

Table 4

Source nickname	Target nickname
		vnickname	nickname root

RBx receives the BUM messages from RB1, determines that object edge RB collection is combined into according to multicast forwarding shown in table 3 RB3~RB6 (vRB is the source RB of the BUM messages, therefore is handled by beta pruning so that object edge RB set does not include vRB), The BUM messages are sent to RB3~RB6 by RBx one by one by TRILL unicasts packaged type.

The transmission of the BUM messages is flowed to as shown in the arrow in Fig. 4-b.

Below with another concrete application scene, the message transmitting method in the embodiment of the present invention is described.Assuming that depositing In the above-mentioned TRILL network topological diagrams of such as Fig. 4-a, in Fig. 4-a, RB1~RB6 is edge RB, and RBx is to concentrate network section Point, RBx and RB1~RB6 are accessed in consolidated network, it is assumed that and the alias of RB1~RB6 is respectively nickname1~nickname6, The super alias of RBx is nicknameroot.Server 1 accesses RB1 and RB2 by dual homed, then RB1 and RB2 invents one Logic vRB, it is assumed that the alias of vRB is vnickname.In embodiments of the present invention, RBx, RB1~RB6 are supported to concentrate and be replicated Function, it is assumed that there is currently four VLAN, are identified respectively by VLAN1~VLAN4, and RB1 and RB2 access VLAN1, and RB3 connects Enter VLAN2, RB4 accesses VLAN3, and RB5 accesses VLAN1, VLAN2 and VLAN3, RB6 access VLAN1, VLAN2, VLAN3 and VLAN4.VLAN marks comprising the VLAN respectively accessed in the Link State Packet that RB1~RB6 is sent.

RBx monitors the Link State Packet of RB1~RB6, and generates multicast as shown in table 5 according to Link State Packet and turn It delivers：

Table 5

In the embodiment of the present invention, server 1 randomly chooses certain uplink by HASH algorithms and sends BUM messages, it is assumed that Selection RB1 sends the BUM messages, and vlan network where the BUM messages is identified as VLAN1, what RB1 was flooded by monitoring RBx The attribute of the concentration network node carried in extension Link State Packet knows that the RBx supports to concentrate copy function, and RB1 is in BUM After encapsulating the tunnels unicast TRILL head on message, BUM messages are sent to by RBx, unicast TRILL by TRILL unicasts packaged type Tunnel head format is as shown in table 4.

RBx receives the BUM messages from RB1, determines that object edge RB collection is combined into according to multicast forwarding shown in table 5 RB5 and RB6 (vRB is the source RB of the BUM messages, therefore is handled by beta pruning so that object edge RB set does not include vRB), The BUM messages are sent to RB5 and RB6 by RBx one by one by TRILL unicasts packaged type.

The transmission of the BUM messages is flowed to as shown in the arrow in Fig. 4-c.

Below with another concrete application scene, the message transmitting method in the embodiment of the present invention is described.Assuming that depositing In the above-mentioned TRILL network topological diagrams of such as Fig. 4-a, in Fig. 4-a, RB1~RB6 is edge RB, and RBx is to concentrate network section Point, RBx and RB1~RB6 are accessed in consolidated network, it is assumed that and the alias of RB1~RB6 is respectively nickname1~nickname6, The super alias of RBx is nicknameroot.Server 1 accesses RB1 and RB2 by dual homed, then RB1 and RB2 invents one Logic vRB, it is assumed that the alias of vRB is vnickname.In embodiments of the present invention, RBx, RB1~RB6 are supported to concentrate and be replicated Function, it is assumed that there is currently four VLAN, are identified respectively by VLAN1~VLAN4, and each VLAN includes two Layer 2 Multicast Domain, wherein the mark in two Layer 2 Multicast domains of VLAN1 is respectively GMAC1 and GMAC2, two Layer 2 Multicast domains of VLAN2 Mark is respectively GMAC3 and GMAC4, and the mark in two Layer 2 Multicast domains of VLAN3 is respectively GMAC5 and GMAC6, VLAN4's The mark in two Layer 2 Multicast domains is respectively GMAC7 and GMAC8.The GMAC1 and GMAC2 of VLAN1 is added in RB1 and RB2, and RB3 adds Enter the GMAC3 of VLAN2, RB4 is added the GMAC5 and GMAC6 of VLAN3, RB5 be added GMAC1, VLAN2 of VLAN1 GMAC4 and The GMAC5 of VLAN3, RB6 be added VLAN1 GMAC2, VLAN2 GMAC3, VLAN3 GMAC6, VLAN4 GMAC7 and In GMAC8.Include two layers that the VLAN of the VLAN respectively accessed is identified and is added in the Link State Packet that RB1~RB6 is sent The mark of multicast domain.

RBx monitors the Link State Packet of RB1~RB6, and generates multicast as shown in table 6 according to Link State Packet and turn It delivers：

Table 6

In the embodiment of the present invention, server 1 randomly chooses certain uplink by HASH algorithms and sends BUM messages, it is assumed that Selection RB1 sends the BUM messages, which is located in the GMAC2 of VLAN1, the extension link that RB1 is flooded by monitoring RBx The tree-like of the concentration network node carried in state message knows that the RBx supports that copy function, RB1 is concentrated to seal on BUM messages After filling the tunnels unicast TRILL head, BUM messages are sent to by RBx, the tunnels unicast TRILL head lattice by TRILL unicasts packaged type Formula is as shown in table 4.

RBx receives the BUM messages from RB1, determines that object edge RB collection is combined into according to multicast forwarding shown in table 6 RB6 (vRB is the source RB of the BUM messages, therefore is handled by beta pruning so that object edge RB set does not include vRB), RBx is logical It crosses TRILL unicasts packaged type and the BUM messages is sent to RB6.

The transmission of the BUM messages is flowed to as shown in the arrow in Fig. 4-d.

Below with another concrete application scene, the message transmitting method in the embodiment of the present invention is described.Assuming that depositing In the above-mentioned TRILL network topological diagrams of such as Fig. 5-a, in Fig. 5-a, RB1~RB6 is edge RB, and RBx is to concentrate network section Point, RBx and RB1~RB6 are accessed in consolidated network, it is assumed that and the alias of RB1~RB6 is respectively nickname1~nickname6, The super alias of RBx is nicknameroot.Server 1 accesses RB1 and RB2 by dual homed, then RB1 and RB2 invents one Logic vRB, it is assumed that the alias of vRB is vnickname, and server 2 accesses in RB6.In embodiments of the present invention, RBx, RB1~ RB6 supports to concentrate copy function.RBx monitors the Link State Packet of RB1~RB6, and is generated such as according to Link State Packet Multicast forwarding shown in table 3.

In the embodiment of the present invention, server 2 sends the BUM messages by RB6.The extended chain that RB6 is flooded by monitoring RBx The attribute of the concentration network node carried in line state message knows that the RBx supports to concentrate copy function, and RB6 is on BUM messages After encapsulating the tunnels unicast TRILL head, BUM messages are sent to by RBx, the tunnels unicast TRILL head by TRILL unicasts packaged type Format is as shown in table 7：

Table 7

Source nickname	Target nickname
		nickname6	nickname root

RBx receives the BUM messages from RB6, determines that object edge RB collection is combined into according to multicast forwarding shown in table 3 (RB6 is the source RB of the BUM messages, because being handled by beta pruning so that object edge RB, which gathers, does not include by vRB, RB3, RB4 and RB5 RB6), which is sent to RB3, RB4 and RB5 by RBx one by one by mode of unicast, since vRB includes both links, point Not Zhi Xiang RB1 and RB2, at this point, RBx is by ECMP mechanism or randomly selects wherein link and sends BUM messages, it is assumed that choosing Fetching is to the link of RB1, then the BUM messages are sent to RB1 by RBx by TRILL unicasts packaged type, and RB1 will be received After the TRILL heads deblocking of BUM messages processing is forwarded to server 1.

The transmission of the BUM messages is flowed to as shown in the arrow in Fig. 5-b.

The embodiment of the present invention also provides a kind of network node, referring to Fig. 6, the network node 600 in the embodiment of the present invention, Including：

First receiving unit 601, the report sent by TRILL unicast packaged types for receiving source edge routing bridge device Text, wherein above-mentioned message is broadcasting packet or unknown unicast message or multicast message；

Determination unit 602, for determining object edge routing bridge cluster tool according to multicast forwarding, wherein above-mentioned mesh It includes that above-mentioned source edge route bridge device to mark routing bridge cluster tool not, and above-mentioned multicast forwarding includes 600 place of network node The mark of each edge routing bridge device in network；

First transmission unit 603, for passing through TRILL unicast packaged types, the report that the first receiving unit 601 is received Text is sent to the routing bridge device that the object edge routing bridge cluster tool of the determination of determination unit 602 is included one by one.

On the basis of embodiment shown in Fig. 6, as shown in fig. 7, network node 700 further includes：

Second receiving unit 604, for receive network node 700 each edge in a network route the chain of bridge device Line state message；

Generation unit 605, network node 700 for being received according to the second receiving unit 604 each of in a network Edge route the Link State Packet of bridge device, generates multicast forwarding.

In a kind of application scenarios, above-mentioned Link State Packet includes：Edge route the virtual LAN of bridge device access VLAN ID, then generation unit 605 generate multicast forwarding further include：Network node 600 in a network The correspondence of the mark and VLAN ID of each edge routing bridge device；Determination unit 602 is specifically used for：In acquisition The VLAN ID in message is stated, the multitransmission generated according to above-mentioned VLAN ID and generation unit 605 Table determines that the edge for accessing the virtual LAN where above-mentioned message route bridge device；Wherein, above-mentioned object edge routing bridge is set The edge routing bridge device that standby set is determined by determination unit 602 is constituted.

In another application scenarios, above-mentioned Link State Packet includes：Edge route the virtual local area of bridge device access The VLAN ID and edge of net route the mark in the Layer 2 Multicast domain of bridge device access, then generation unit 605 generates Multicast forwarding further includes：Network node 600 each edge routing mark of bridge device in a network, virtual local area network mark The correspondence of the mark in the Layer 2 Multicast domain that knowledge and edge routing bridge device are added；Determination unit 602 is specifically used for：It obtains The mark of VLAN ID and Layer 2 Multicast domain in above-mentioned message, with the mark of above-mentioned virtual LAN and two layers of group It broadcasts the mark in domain to be combined as indexing, is determined and accessed where above-mentioned message according to the multicast forwarding that generation unit 605 generates Virtual LAN, and the edge that the Layer 2 Multicast domain of above-mentioned message access is added route bridge device；Wherein, above-mentioned object edge road The edge routing bridge device determined by determination unit 602 by bridge device set is constituted.

Further, if comprising by dual homed access or return access more in above-mentioned object edge routing bridge cluster tool more It is route the virtual flow-line bridge device that bridge device fictionalizes, then the first transmission unit 603 is additionally operable to through TRILL unicasts encapsulation side Formula sends above-mentioned report more to the access of above-mentioned dual homed or more wherein one routing bridge devices routeing in bridge device for returning access Text, alternatively, being sent to the access of above-mentioned dual homed or the virtual flow-line bridge device for returning more routing bridge equipment of access to form more State message.

Optionally, it is accessed to above-mentioned dual homed by the first transmission unit 603 in above-mentioned network node or returns access more During wherein one routing bridge device in more routing bridge devices sends above-mentioned message, above-mentioned network node uses ECMP Mechanism is selected from the multilink that more edge of table that above-mentioned network node includes to above-mentioned virtual flow-line bridge device route bridge device A link is taken, the edge that above-mentioned message is sent to selected chain road by the first transmission unit 603 route bridge device, or Person, more edge of table roads that above-mentioned network node can also include from above-mentioned virtual flow-line bridge device by other mechanism or at random It selects an edge of table to route bridge device by bridge device, is sent out to the edge router device of selection by the first transmission unit 603 The message is given, is not construed as limiting herein.

Optionally, it when above-mentioned message is sent to object edge RB and gathers included RB by the first transmission unit 603, protects The source nickname values held in above-mentioned message are constant, that is, it is the nickname of above-mentioned source edge RB to keep source nickname values, is made The RB in object edge RB set is obtained when receiving the message, the MAC address entries acquired are the nickname of above-mentioned source edge RB, Rather than the nickname of above-mentioned network node.

It should be noted that the network node in the embodiment of the present invention is gathered around in a network, there are one common nickname and one A super nickname.Above-mentioned common nickname is identical as the nickname effects of other equipment.Above-mentioned super nickname The alias for replicating and being used under scene is being concentrated for above-mentioned network node, dedicated for concentrating copy function.Optionally, in Fig. 6 or On the basis of embodiment illustrated in fig. 7, network node further includes：Second transmission unit, for the extended chain that floods in above-mentioned network Line state message, wherein above-mentioned extension Link State Packet carries the attribute of above-mentioned network node and super alias, above-mentioned category Property show that above-mentioned network node supports to concentrate copy function, above-mentioned super alias, which is above-mentioned network node, to be replicated under scene concentrating The alias used.Further, above-mentioned network node further includes：Judging unit, for receiving source edge in the first receiving unit 601 When the message that RB is sent by TRILL unicast packaged types, the outlet for the message that above-mentioned TRILL unicasts packaged type is sent is judged Whether alias is above-mentioned super alias, it is determined that unit 602 is triggered when the judging result of above-mentioned judging unit is to be.

It should be noted that the network node in the embodiment of the present invention can be such as the concentration network in above method embodiment Node can be used to implement all the technical solutions in the foregoing method embodiment, and the function of each function module can basis Method specific implementation in above method embodiment, specific implementation process can refer to the associated description in above-described embodiment, this Place repeats no more.

Therefore Zhong Yuan of embodiment of the present invention edge RB are sent out by TRILL unicasts packaged type to concentration network node It delivers newspaper text, and concentrates network node by TRILL unicast packaged types, the message received is sent to object edge one by one RB gathers included RB, since target RB set does not include above-mentioned source edge RB, it is therefore not necessary to can be protected by rpf check It is not in loop in transmission process to demonstrate,prove message, and the mode for concentrating network node unicast reception and unicast to send can be effective The quantity for reducing multicast distribution tree, to save multicast resource, in the case of same hardware multicast resource so that system energy It enough supports more multicast services, improves the scalability of system.

Another network node in implementing below to the present invention is described, and please refers in Fig. 8 embodiment of the present invention Network node 800 includes：

Input unit 801, output device 802, memory 803 and the (processor 804 of network node 800 of processor 804 Quantity can be one or more, for mono- processor of Fig. 8).In some embodiments of the invention, input unit 801, output device 802, memory 803 and processor 804 can be connected by bus or other means, be as shown in Figure 8 For being connected by bus.Wherein, it is used for storing the data inputted from input unit 801 in memory 803, and can also stores up It deposits processor 804 and handles the information such as the necessary file of data；Input unit 801 and output device 802 may include user equipment 800 ports communicated with other equipment, and can also include the external output equipment of user equipment 800 such as display, keyboard, Mouse and printer etc., specifically input unit 801 may include mouse and keyboard etc., and output device 802 may include showing Show device etc., the port communicated in the present embodiment with other equipment in input unit 801 and output device 802 can be antenna And/or cable.

Wherein, processor 804 executes following steps：

The message that reception source edge RB is sent by TRILL unicast packaged types, wherein above-mentioned message is BUM messages；

Object edge RB set is determined according to multicast forwarding, wherein above-mentioned target RB set does not include above-mentioned source edge RB, above-mentioned multicast forwarding include above-mentioned network node each edge RB in a network mark；

By TRILL unicast packaged types, above-mentioned message is sent to above-mentioned object edge RB set one by one is included RB。

Optionally, processor 804 is additionally operable to：Receive network node 800 each edge RB in a network link shape State message, and multicast forwarding is generated according to the Link State Packet of above-mentioned each edge RB of reception.

In a kind of application scenarios, above-mentioned Link State Packet includes：The VLAN marks of the VLAN of edge RB accesses, then locate Managing the multicast forwarding that device 804 generates further includes：Network node 800 the mark of each edge RB in a network marked with VLAN The correspondence of knowledge；Processor 804 is specifically used for：When the message that reception source edge RB is sent by TRILL unicast packaged types When, the VLAN marks in the message are obtained, is determined according to above-mentioned VLAN marks and above-mentioned multicast forwarding and accesses above-mentioned message The edge RB of the VLAN at place.Wherein, above-mentioned object edge RB set is as the VLAN where the determining above-mentioned message of above-mentioned access Edge RB constitute.

In another application scenarios, in above-mentioned Link State Packet comprising edge RB access VLAN VLAN mark and The mark in the Layer 2 Multicast domain that edge RB is added, the then multicast forwarding that processor 804 generates further include：800 institute of network node The corresponding of mark in the Layer 2 Multicast domain that mark, VLAN marks and the edge RB of each edge RB in a network is added is closed System；Processor 804 is specifically used for：When network node 800 receives the message that edge RB in source is sent by TRILL unicast packaged types When, the mark of the VLAN marks and Layer 2 Multicast domain in the message is obtained, with VLAN marks and the mark in Layer 2 Multicast domain It is combined as indexing, the VLAN where accessing the message is determined according to above-mentioned multicast forwarding, and be added two layers of message access The edge RB of multicast domain.Wherein, above-mentioned object edge RB set is as the VLAN where determining above-mentioned access message, and is added The edge RB in the Layer 2 Multicast domain of message access is constituted.

Further, if including to be accessed by dual homed or return more RB of access to fictionalize more in above-mentioned object edge RB set Virtual RB, then processor 804 be additionally operable to：By TRILL unicast packaged types, is accessed to above-mentioned dual homed or return the more of access more A wherein RB in platform RB sends above-mentioned message, alternatively, being accessed to above-mentioned dual homed or returning more RB of access to form more Virtual RB sends above-mentioned message.

Optionally, it is accessed to above-mentioned dual homed by TRILL unicast packaged types in 804 points of processor or returns access more More RB in wherein RB send above-mentioned message during, processor 804 uses ECMP mechanism, from network node A link is chosen in the multilink of 800 to the above-mentioned virtual RB more edge of table RB for including, above-mentioned message is sent to selected The edge RB of chain road, alternatively, processor 804 adopts can also include from above-mentioned virtual RB by other mechanism or at random more Edge of table RB selects an edge of table RB to send the message, is not construed as limiting herein.

Optionally, processor 804 is kept above-mentioned when above-mentioned message is sent to the included RB of object edge RB set Source nickname values in message are constant, that is, it is the nickname of above-mentioned source edge RB to keep source nickname values so that target For RB in edge RB set when receiving the message, the MAC address entries acquired are the nickname of above-mentioned source edge RB, rather than The nickname of network node 800.

It should be noted that the network node in the embodiment of the present invention is gathered around in a network, there are one common nickname and one A super nickname.Above-mentioned common nickname is identical as the nickname effects of other equipment.Above-mentioned super nickname The alias for replicating and being used under scene is being concentrated for above-mentioned network node, dedicated for concentrating copy function.Optionally, processor 804 are additionally operable to：Flood extension Link State Packet in above-mentioned network, wherein above-mentioned extension Link State Packet carries above-mentioned The attribute of network node and super alias, above-mentioned attribute shows that above-mentioned network node is supported to concentrate copy function, above-mentioned super Alias is that above-mentioned network node is concentrating the alias for replicating and being used under scene, and further, processor 804 is additionally operable to：In the source of reception When the message that edge RB is sent by TRILL unicast packaged types, the message that above-mentioned TRILL unicasts packaged type is sent is judged It exports whether alias is above-mentioned super alias, if above-mentioned outlet alias is above-mentioned super alias, just executes above-mentioned according to multicast Forwarding table determines action and the subsequent action of object edge RB set.

It should be noted that the network node in the embodiment of the present invention can be such as the concentration network in above method embodiment Node can be used to implement all the technical solutions in the foregoing method embodiment, and the function of each function module can basis Method specific implementation in above method embodiment, specific implementation process can refer to the associated description in above-described embodiment, this Place repeats no more.

Therefore Zhong Yuan of embodiment of the present invention edge RB are sent out by TRILL unicasts packaged type to concentration network node It delivers newspaper text, and concentrates network node by TRILL unicast packaged types, the message received is sent to object edge one by one RB gathers included RB, since target RB set does not include above-mentioned source edge RB, it is therefore not necessary to can be protected by rpf check It is not in loop in transmission process to demonstrate,prove message, and the mode for concentrating network node unicast reception and unicast to send can be effective The quantity for reducing multicast distribution tree, to save multicast resource, in the case of same hardware multicast resource so that system energy It enough supports more multicast services, improves the scalability of system.

The embodiment of the present invention also provides a kind of message transfer system, as shown in figure 9, message transfer system 900 includes：It concentrates Network node 901 and more than two edges route bridge device 902；

Wherein, network node 901 is concentrated to be in consolidated network with edge routing bridge device 902 more than above-mentioned two；

Concentrate network node 901 that can specifically describe and be referred to such as Fig. 6~any network node shown in fig. 8 Description in Fig. 6~Fig. 8, details are not described herein again.

It should be noted that for each method embodiment above-mentioned, describe, therefore it is all expressed as a series of for simplicity Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the described action sequence because According to the present invention, certain steps may be used other sequences or be carried out at the same time.Secondly, those skilled in the art should also know It knows, embodiment described in this description belongs to preferred embodiment, and involved action and module might not all be this hairs Necessary to bright.

In several embodiments provided herein, it should be understood that disclosed device and method can pass through it Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can be tied Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed Mutual coupling, direct-coupling or communication connection can be the INDIRECT COUPLING or logical by some interfaces, device or unit Letter connection can be electrical, machinery or other forms.

The unit illustrated as separating component may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme 's.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention Portion or part steps.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.

A kind of message transmitting method provided by the present invention, network node and message transfer system have been carried out in detail above It introduces, in the above-described embodiments, all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in some embodiment, It may refer to the associated description of other embodiments.For those of ordinary skill in the art, the thought of embodiment according to the present invention, There will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as to this The limitation of invention.

Claims (15)

1. a kind of message transmitting method, which is characterized in that including：

It concentrates network node to receive source edge routing bridge device and interconnects what TRILL unicast packaged types were sent by transparent interconnection of lots of links Message, wherein the message is broadcasting packet or unknown unicast message or multicast message；

The concentration network node determines object edge routing bridge cluster tool according to multicast forwarding, wherein the target road Do not include that the source edge route bridge device by bridge device set, the multicast forwarding includes the concentration network node place The mark of each edge routing bridge device in network；

The concentration network node is sent to the object edge road one by one by TRILL unicast packaged types, by the message The routing bridge device for being included by bridge device set.

2. according to the method described in claim 1, it is characterized in that,

It is described object edge routing bridge cluster tool is determined according to multicast forwarding before, the method further includes：

Receive the Link State Packet that concentration network node institute each edge in a network route bridge device；

According to the concentration network node of reception each edge in a network route the Link State Packet of bridge device, it is raw At the multicast forwarding.

3. according to the method described in claim 2, it is characterized in that,

The Link State Packet includes：Edge route the VLAN ID of the virtual LAN of bridge device access, described Multicast forwarding specifically includes：It is described concentrate network node institute in a network each edge routing bridge device mark with virtually The correspondence of LAN ID；

It is described that object edge routing bridge cluster tool is determined according to the multicast forwarding, including：

The VLAN ID in the message is obtained, it is true according to the VLAN ID and the multicast forwarding Surely the edge routing bridge device of the virtual LAN where the message is accessed；

Wherein, the object edge routing bridge cluster tool is as the virtual LAN where the access message determined Edge route bridge device and constitutes.

4. according to the method described in claim 2, it is characterized in that,

The Link State Packet includes：Edge route the VLAN ID and edge of the virtual LAN of bridge device access It is route the mark in the Layer 2 Multicast domain that bridge device is added, then the multicast forwarding specifically includes：Concentration network node institute Mark, VLAN ID and the edge of each edge routing bridge device in a network route two layers that bridge device is added The correspondence of the mark of multicast domain；

It is described that object edge routing bridge cluster tool is determined according to multicast forwarding, including：

The VLAN ID in the message and the mark in Layer 2 Multicast domain are obtained, with the mark of the virtual LAN It is combined as indexing with the mark in Layer 2 Multicast domain, the virtual office where accessing the message is determined according to the multicast forwarding Domain net, and the edge that the Layer 2 Multicast domain of the message access is added route bridge device；

Wherein, the object edge routing bridge cluster tool is as the virtual LAN where the access message determined, And the edge routing bridge device that the Layer 2 Multicast domain of the message access is added is constituted.

5. method according to any one of claims 1 to 4, which is characterized in that the method further includes：

The concentration network node floods in the network extends Link State Packet, and the extension Link State Packet carries The attribute for concentrating network node and super alias, the attribute show that the concentration network node is supported to concentrate and replicate work( Can, the super alias is that the concentration network node is concentrating the alias for replicating and being used under scene.

6. according to the method described in claim 5, it is characterized in that,

The concentration network node receives source edge routing bridge device and interconnects TRILL unicast packaged types hair by transparent interconnection of lots of links The message sent includes later：

Judge whether the outlet alias for the message that the TRILL unicasts packaged type is sent is the super alias, if described Outlet alias is the super alias, executes the step that object edge routing bridge cluster tool is determined according to multicast forwarding Suddenly.

7. method according to any one of claims 1 to 4, which is characterized in that

If comprising by dual homed access or more routing bridge devices for returning access in the object edge routing bridge cluster tool more The virtual flow-line bridge device fictionalized, then it is described that the message is sent to the object edge routing bridge cluster tool packet one by one The routing bridge device contained, including：

Described in the wherein one routing bridge devices into dual homed access or more routing bridge devices for returning access are sent more Message；Or,

The report is sent to dual homed access or the virtual flow-line bridge device for returning more routing bridge equipment of access to form more Text.

8. a kind of network node, which is characterized in that including：

First receiving unit interconnects TRILL unicast packaged types for receiving source edge routing bridge device by transparent interconnection of lots of links The message of transmission, wherein the message is broadcasting packet or unknown unicast message or multicast message；

Determination unit, for determining object edge routing bridge cluster tool according to multicast forwarding, wherein the target routing bridge Cluster tool include the source edge route bridge device, the multicast forwarding include the network node in a network The mark of each edge routing bridge device；

First transmission unit, for by TRILL unicast packaged types, the message that the receiving unit receives to be sent one by one The routing bridge device for being included to the object edge routing bridge cluster tool that the determination unit determines.

9. network node according to claim 8, which is characterized in that

The network node further includes：

Second receiving unit, for receive the network node each edge in a network route the link state of bridge device Message；

Generation unit, the network node for being received according to second receiving unit each edge road in a network By the Link State Packet of bridge device, the multicast forwarding is generated.

10. network node according to claim 9, which is characterized in that

The Link State Packet includes：Edge route the VLAN ID of the virtual LAN of bridge device access, described Multicast forwarding specifically includes：The network node in a network each edge routing bridge device mark and virtual local area The correspondence that network mark is known；

The determination unit is specifically used for：The VLAN ID in the message is obtained, according to the virtual local area network mark Know and the multicast forwarding determines that the edge for accessing the virtual LAN where the message route bridge device；

Wherein, the object edge routing bridge cluster tool is as the virtual LAN where the access message determined Edge route bridge device and constitutes.

11. network node according to claim 9, which is characterized in that

The Link State Packet includes：Edge route the VLAN ID and edge of the virtual LAN of bridge device access It is route the mark in the Layer 2 Multicast domain of bridge device access, then the multicast forwarding specifically includes：Net where the network node The Layer 2 Multicast that mark, VLAN ID and the edge routing bridge device of each edge routing bridge device in network are added The correspondence of the mark in domain；

The determination unit is specifically used for：The VLAN ID in the message and the mark in Layer 2 Multicast domain are obtained, It is combined as indexing with the mark of the virtual LAN and the mark in Layer 2 Multicast domain, be connect according to multicast forwarding determination Enter the virtual LAN where the message, and the edge that the Layer 2 Multicast domain of the message access is added route bridge device；

Wherein, the object edge routing bridge cluster tool is as the virtual LAN where the access message determined, And the edge routing bridge device that the Layer 2 Multicast domain of the message access is added is constituted.

12. according to the network node described in claim 8 to 11 any one, which is characterized in that

The network node further includes：

Second transmission unit, for the extension Link State Packet that floods in the network, the extension Link State Packet is taken Attribute with the network node and super alias, the attribute show that the network node is supported to concentrate copy function, institute It is that the network node is concentrating the alias for replicating and being used under scene to state super alias.

13. network node according to claim 12, which is characterized in that

The network node further includes：

Judging unit is interconnected for receiving source edge routing bridge device in first receiving unit by transparent interconnection of lots of links When the message that TRILL unicast packaged types are sent, judge that the outlet alias for the message that the TRILL unicasts packaged type is sent is No is the super alias；

The determination unit is triggered when the judging result of the judging unit is to be.

14. according to the network node described in claim 8 to 10 any one, which is characterized in that

First transmission unit is additionally operable to：When in the object edge routing bridge cluster tool comprising by dual homed access or it is more When returning more of access to route the virtual flow-line bridge device that bridge device fictionalizes, is accessed to the dual homed or return the more of access more The wherein one routing bridge device that platform is route in bridge device sends the message, alternatively, being connect to dual homed access or return more The virtual flow-line bridge device of the more routing bridge equipment composition entered sends the message.

15. a kind of message transfer system, which is characterized in that including：

Network node and more than two edges is concentrated to route bridge device；

Wherein, the concentration network node is in consolidated network with described two with top edge routing bridge equipment；

Concentration network node such as claim 8 to 14 any one of them network node.