CN101499951B - Tunnel configuration method, virtual access node, virtual edge node and system - Google Patents
Tunnel configuration method, virtual access node, virtual edge node and system Download PDFInfo
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- CN101499951B CN101499951B CN2008100060721A CN200810006072A CN101499951B CN 101499951 B CN101499951 B CN 101499951B CN 2008100060721 A CN2008100060721 A CN 2008100060721A CN 200810006072 A CN200810006072 A CN 200810006072A CN 101499951 B CN101499951 B CN 101499951B
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Abstract
The invention discloses a tunnel configuration method, a virtual access node, a virtual edge node and a system. The tunnel between an IP edge node and a virtual AN is established dynamically, and then the tunnel is provided for an SP network device to realize the control of a port division by the SP network device. The problem of low utilization of the tunnel caused by a PBT tunnel static configuration in the prior art is avoided, and as the tunnel can be allocated dynamically, when a fault occurs in the configuration tunnel, the SP can reapply for a tunnel for service, thus ensuring normal communication.
Description
Technical field
The present invention relates to the provider backbone transmission technology, be specifically related to tunnel configuration method, virtual access node, virtual fringe node and system.
Background technology
(Provider Backbone Transport, PBT) technology is that (Provider Backbone Bridge PBB) improves on the standard in provider backbone bridging based on the 802.1ah standard in the provider backbone transmission.The target of PBB technology is, allows the provider backbone bridging network (PBBN) under the 802.1ad standard code to support maximum 2
20Individual service VLAN.And PBB has also defined framework and the bridged protocol of PBBN, with the compatibility that realizes a plurality of PBB networks with interconnect.
PBB adopts the encapsulation of MAC Address in MAC Address, is about to terminal use's ethernet data frame and is packaged into operator's Ethernet frame head again, forms two MAC Addresss, and in operator's core net, only the MAC Address according to a back encapsulation carries out the flow forwarding.The benefit that this technology is brought is, makes Ethernet autgmentability and obtained very big lifting as the ability of network transmission technology.But there is traffic engineering problem in PBB, and the for example flow control under the multimode route, access control and professional control, 50ms even 20ms switch or failover capability, and QoS guarantee end to end etc.Under the promotion of these business demands, PBB is modified into for PBT.
The PBT technology has following characteristic:
1. the equipment of realizing PBT need be supported IVL;
2. on the relevant equipment of PBT, specify the VLAN of a part of VLAN, separate use, be independent of each other with other Common VLAN as PBT;
3. in the VLAN of PBT, close MAC address learning and Spanning-Tree Protocol;
4. in the VLAN of PBT, close broadcasting and the multicast and the broadcast capability of unknown message;
5. the MAC Address and the PBTVID of configuration purpose equipment on the Ethernet switch of a series of support IVL, and carry out message according to this configuration as the sign (being label) of passage and transmit, its pass-through mode is identical with the 802.1Q pass-through mode of standard.
MAC Address, VID and pass-through mode and IEEE 802.1q conformance to standard that the PBT technology is used.
The PBT technology is formed label through the MAC Address and the PBT VID of destination device; On the Ethernet switch of a series of support IVL, transmit; (Ethernet Switched Path, ESP), this path can think that one connects or the tunnel to have formed the Ethernet switching path.
In research and practice process to prior art; The inventor finds that there is following problem in prior art: at present, PBT is mainly used in the wholesale scene of Access Network, the Internet protocol (InternetProtocol of operator through connecting; IP) fringe node carries out business to the user in the PBT net provides; As the wholesale tunnel of Access Network, the PBT tunnel that SP inserts the PBT network is network maintenance staff's static configuration, and the mode of this static configuration causes the tunnel utilance low; The wasting of resources and when the tunnel breaks down can't be set up new tunnel and realized that communication connects.
Summary of the invention
The technical problem that the embodiment of the invention solves provides tunnel configuration method, virtual access node, virtual fringe node and system, can realize the dynamic assignment in PBT tunnel.
The embodiment of the invention provides a kind of provider backbone transmission PBT tunnel configuration method, comprising: join
Put the virtual mac address of virtual access node or the virtual mac address of virtual fringe node;
Through layer two control L2C agreement; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the fringe node; Or pairing the transmitting of PBT tunnel label between said virtual access node and the said virtual fringe node, or pairing the transmitting of PBT tunnel label between access node and the said virtual fringe node.
Said virtual access node and said fringe node be through said PBT tunnel communication, or said virtual access node and said virtual fringe node be through said PBT tunnel communication, or said access node and said virtual fringe node pass through said PBT tunnel communication.
The embodiment of the invention provides the virtual access node of a kind of provider backbone transmission PBT, comprising:
Memory cell is used to store the virtual mac address of pre-configured said virtual access node;
Port subregion interface processing unit is used for receiving or the literary composition that sends datagram from said virtual mac address corresponding port;
PBT tunnel configuration unit; Be used for agreement through L2C; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the fringe node, said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual access node, VLAN and said fringe node;
PBT tunnel processing unit is used for according to said PBT tunnel label, and the data message that said port subregion interface processing unit is received carries out PBT frame encapsulation process, and the data message after the encapsulation is transmitted through said PBT tunnel; Receive the PBT frame data message that transmits in the said PBT tunnel, carry out the decapsulation of PBT frame according to said PBT tunnel label and handle, the data message after the decapsulation is sent to said port subregion interface processing unit.
The embodiment of the invention provides the virtual fringe node of a kind of provider backbone transmission PBT, it is characterized in that, comprising:
Memory cell is used to store the virtual mac address of pre-configured said virtual fringe node;
The L2C functional unit is used to receive the PBT tunnel configuration request that the SP network equipment sends, and sends the request of said PBT tunnel configuration to the L2C agent equipment;
PBT tunnel configuration unit; Be used under said L2C agent equipment control; Through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the access node, said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual fringe node, VLAN and said access node;
PBT tunnel processing unit is used to receive the data message from the SP network equipment, carries out PBT frame encapsulation process according to said PBT tunnel label, and the data message after the encapsulation is transmitted through said PBT tunnel; Receive the PBT frame data message that transmits in the said PBT tunnel, carry out the decapsulation of PBT frame according to said PBT tunnel label and handle, the data message after the decapsulation is sent to the said SP network equipment.
The embodiment of the invention provides a kind of provider backbone to transmit PBT tunnel configuration system, comprising: access node and fringe node;
Said access node comprises a plurality of virtual access nodes, and said virtual access node is used to store the virtual mac address of pre-configured said virtual access node; Through the L2C agreement, dispose pairing the transmitting of PBT tunnel label between said virtual access node and the said fringe node; Communicate by letter with said fringe node through said PBT tunnel;
Said fringe node is used for the agreement through L2C, disposes pairing the transmitting of PBT tunnel label between said fringe node and the said virtual access node; Communicate by letter with said virtual access node through said PBT tunnel.
The embodiment of the invention provides a kind of PBT tunnel configuration system, comprising: access node and fringe node;
Said fringe node comprises: L2C agent equipment and a plurality of virtual fringe node; Said virtual fringe node is used to store the virtual mac address of pre-configured said virtual fringe node; Receive the PBT tunnel configuration request that the SP network equipment sends, send said PBT tunnel configuration request to said L2C agent equipment; Under said L2C agent equipment control, through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the said access node; Communicate by letter with said access node through said PBT tunnel;
Said access node is used for through pairing the transmitting of PBT tunnel label between said access node of L2C protocol configuration and the said virtual fringe node; Communicate by letter with said virtual fringe node through said PBT tunnel.
The embodiment of the invention provides a kind of PBT tunnel configuration system, comprising: access node and fringe node;
Said access node comprises a plurality of virtual access nodes, and said fringe node comprises: L2C agent equipment and a plurality of virtual fringe node;
Said virtual access node is used to store the virtual mac address of pre-configured said virtual access node; Through the L2C agreement, dispose pairing the transmitting of PBT tunnel label between said virtual access node and the said virtual fringe node; Communicate by letter with said virtual fringe node through said PBT tunnel;
Said virtual fringe node is used to store the virtual mac address of pre-configured said virtual fringe node; Receive the PBT tunnel configuration request that the SP network equipment sends, send said PBT tunnel configuration request to said L2C agent equipment; Under said L2C agent equipment control, through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the said virtual access node; Communicate by letter with said virtual access node through said PBT tunnel.
Adopt technique scheme, embodiment of the invention beneficial technical effects is:
In the embodiment of the invention,, the tunnel is being offered the use of the SP network equipment through dynamically setting up the IP fringe node to the tunnel between the virtual A N; Realize of the control of the SP network equipment, avoided in the prior art the low problem of tunnel utilance that PBT tunnel static configuration is brought the port subregion; And because the tunnel can dynamic assignment; Then break down when the tunnel of configuration, SP can apply for again that the tunnel is its service, guarantees the normal of communication.
Description of drawings
Fig. 1 is the structural representation that the embodiment of the invention one is supported the virtual A N equipment of PBT;
Fig. 2 is the structural representation that the embodiment of the invention two is supported the virtual A N equipment of PBT;
Fig. 3 is the structural representation of the embodiment of the invention three virtual PBT fringe nodes;
Fig. 4 is the structural representation of the embodiment of the invention four PBT tunnel configuration systems;
Fig. 5 is the structural representation of the embodiment of the invention five PBT tunnel configuration systems;
Fig. 6 is the structural representation of the embodiment of the invention six PBT tunnel configuration systems;
Fig. 7 is the structural representation of the embodiment of the invention seven PBT tunnel configuration systems;
Fig. 8 is the structural representation of the embodiment of the invention eight PBT tunnel configuration systems;
Fig. 9 is the structural representation of the embodiment of the invention nine PBT tunnel configuration systems;
Figure 10 is the structural representation of the embodiment of the invention ten access node apparatus;
Figure 11 is the structural representation of the embodiment of the invention 11 IP fringe node equipment;
Figure 12 is the flow chart of the embodiment of the invention 12 provider backbones transmission PBT tunnel configuration method;
Figure 13 is the flow chart of the application examples one of the embodiment of the invention 12;
Figure 14 is the flow chart of the application examples two of the embodiment of the invention 13.
Embodiment
The embodiment of the invention provides tunnel configuration method, virtual A N, virtual IP address edge device and tunnel configuration system, can realize the dynamic assignment in PBT tunnel.
The technical problem that solves in the face of a kind of embodiment of the invention provided by the invention down provides tunnel configuration method, virtual A N, virtual IP address edge device and tunnel configuration system and is described in detail.
Embodiment one, a kind of virtual A N equipment 100 of supporting PBT, and structural representation is as shown in Figure 1, comprising: port subregion interface processing unit 110, PBT tunnel configuration unit 120, PBT tunnel processing unit 130 and memory cell 140;
Said port subregion interface processing unit 110 is used for receiving or the literary composition that sends datagram from the virtual mac address corresponding port of cell stores;
Said PBT tunnel configuration unit 120; Be used for agreement through L2C; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the fringe node, said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual access node, VLAN and said fringe node;
Said PBT tunnel configuration unit 120; Also be used for through said L2C agreement; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the virtual fringe node, said PBT tunnel label comprises: the virtual mac address of the virtual mac address of said virtual access node, VLAN and said virtual fringe node.
Said PBT tunnel processing unit 130 is used for the data message of receiving from port subregion interface processing unit, carry out PBT frame encapsulation process according to the label in the PBT tunnel of PBT tunnel configuration configuration of cells after, be transmitted to destination device; Or receive PBT frame from miscellaneous equipment, according to the label in the PBT tunnel of PBT tunnel configuration configuration of cells, after carrying out the decapsulation of PBT frame and handling, data message is issued port subregion interface processing unit 110 handle.
In the embodiment of the invention, the label in said PBT tunnel can comprise: the descending ESP of virtual mac address (target MAC (Media Access Control) address) sign of the up ESP of the virtual mac address of virtual A N (source MAC)+VLAN+ target MAC (Media Access Control) address (like the BNG MAC Address) sign and/or source MAC (like the BNG MAC Address)+VLAN+AN.
Embodiment two, a kind of virtual A N equipment of supporting PBT, and structural representation is as shown in Figure 2, comprising: port subregion interface processing unit 210, PBT tunnel configuration unit 220, PBT tunnel processing unit 230 and memory cell 240;
Said port subregion interface processing unit 210 is used for receiving or the literary composition that sends datagram from the virtual mac address corresponding port of memory cell 240 storages;
Said PBT tunnel configuration unit 220; Be used for agreement through L2C; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the fringe node, said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual access node, VLAN and said fringe node;
Said PBT tunnel configuration unit 220; Also be used for through said L2C agreement; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the virtual fringe node, said PBT tunnel label comprises: the virtual mac address of the virtual mac address of said virtual access node, VLAN and said virtual fringe node.
Said PBT tunnel processing unit 230 is used for the data message of receiving from port subregion interface processing unit, carry out PBT frame encapsulation process according to the label in the PBT tunnel of PBT tunnel configuration configuration of cells after, be transmitted to destination device; Or receive PBT frame from miscellaneous equipment, according to the label in the PBT tunnel of PBT tunnel configuration configuration of cells, after carrying out the decapsulation of PBT frame and handling, data message is issued port subregion interface processing unit processes 220.
Said PBT tunnel processing unit 230; Also be used for judging according to the tunnel label of said PBT tunnel configuration unit 230 configured virtual AN whether the said message that receives from port subregion interface processing unit 210 is received by this virtual A N; Handle if then carry out the decapsulation of PBT frame, the data message after the decapsulation is sent to said port subregion interface processing unit according to said PBT tunnel label.
In the embodiment of the invention, the label in said PBT tunnel can comprise: the descending ESP of virtual mac address (target MAC (Media Access Control) address) sign of the up ESP of the virtual mac address of virtual A N (source MAC)+VLAN+ target MAC (Media Access Control) address (like the BNG MAC Address) sign and/or source MAC (like the BNG MAC Address)+VLAN+AN.
The embodiment of the invention three, a kind of virtual PBT fringe node 300, structural representation is as shown in Figure 3, comprising: L2C functional unit 310, PBT tunnel configuration unit 320, PBT tunnel processing unit 330 and memory cell 340;
L2C functional unit 310 is used to receive the PBT tunnel configuration request that the SP network equipment sends, and sends the request of said PBT tunnel configuration to the L2C agent equipment;
PBT tunnel configuration unit 320; Be used under said L2C agent equipment control; Through pairing the transmitting of PBT tunnel label between said virtual IP address fringe node 300 of L2C protocol configuration and the access node, said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual fringe node, VLAN and said access node;
Memory cell 340 is used to store the virtual mac address of pre-configured said virtual fringe node;
Said PBT tunnel configuration unit 320; Also be used under said L2C agent equipment control; Through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the virtual access node, said PBT tunnel label comprises: the virtual mac address of the virtual mac address of said virtual fringe node, VLAN and said virtual access node;
PBT tunnel processing unit 330 is used to receive the data message from the SP network equipment, presses the label in the PBT tunnel of PBT tunnel configuration unit 320 configuration, carry out PBT frame encapsulation process after, the PBT frame is sent to destination device through said PBT tunnel; Reception from miscellaneous equipment come the PBT frame, press the label in the PBT tunnel of PBT tunnel configuration unit 320 configurations, after carrying out the decapsulation of PBT frame and handling, with data message forwarding to the SP network equipment.
In the embodiment of the invention, the label in said PBT tunnel comprises: the up ESP of source MAC (like the MAC Address of AN)+VLAN+ virtual IP address fringe node MAC Address (target MAC (Media Access Control) address) sign and/or the descending ESP of virtual IP address fringe node MAC Address (source MAC)+VLAN+ target MAC (Media Access Control) address (like the MAC Address of AN) sign.
It is understandable that; Said PBT tunnel processing unit 330; Also be used for according to said PBT tunnel label; Judge whether the PBT frame data message that transmits in the PBT tunnel of said reception should be received by this virtual fringe node, handles if then carry out the decapsulation of PBT frame according to said PBT tunnel label, and the data message after the decapsulation is sent to the said SP network equipment.
It is understandable that said L2C functional unit specifically comprises:
Receiving element is used to receive the PBT tunnel configuration request that the SP network equipment sends through expansion multi protocol label exchange GMPLS signaling;
Converting unit is used for converting said GMPLS signaling into the L2C signaling;
Transmitting element is used for sending the request of said PBT tunnel configuration to the L2C agent equipment through said L2C signaling.
The embodiment of the invention four, a kind of PBT tunnel configuration system, the system configuration sketch map is as shown in Figure 4, comprising: access node (AN) 410 and IP fringe node 420;
Said access node 410 comprises a plurality of virtual A N, virtual A N1～virtual A Nn;
Said each virtual A N is used to store the virtual mac address of pre-configured said virtual access node; Through the L2C agreement, dispose pairing the transmitting of PBT tunnel label between said virtual access node and the said fringe node; Communicate by letter with said fringe node through said PBT tunnel;
IP fringe node 420 is used for the agreement through L2C, disposes pairing the transmitting of PBT tunnel label between said fringe node and the said virtual access node; Communicate by letter with said virtual access node through said PBT tunnel.
Said IP fringe node can and said virtual A N1～virtual A Nn set up many (n bar) PBT tunnels between said fringe node and the virtual A N alternately; When the PBT tunnel distributing request of receiving the SP network equipment, for the said SP network equipment distributes the PBT tunnel.Said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual access node, VLAN and said fringe node.
It is understandable that the said process of setting up the PBT tunnel between said fringe node and the virtual A N is that L2C and the inner PBT tunnel configuration unit of each virtual A N are set up a data transmit path alternately.
It is understandable that each virtual A N comprises a port subregion, the SP network equipment is managed through the port subregion of said PBT tunnel corresponding virtual AN.
In the embodiment of the invention, the label in said PBT tunnel comprises: the descending ESP of virtual mac address (target MAC (Media Access Control) address) sign of the up ESP of the virtual mac address of virtual A N (source MAC)+VLAN+ target MAC (Media Access Control) address (like the BNG MAC Address) sign and/or source MAC (like the BNG MAC Address)+VLAN+AN.
Embodiment five, and a kind of PBT tunnel configuration system combines concrete application example in the present embodiment, the embodiment of the invention four technical schemes are described in detail.
Structural representation is as shown in Figure 5, comprising:
Said access node 510 comprises a plurality of virtual A N, virtual A N1～virtual A Nn;
Each virtual A N is made up of port subregion interface processing unit 511, PBT tunnel configuration unit 512 and ANPBT tunnel processing unit 513.
Said L2C functional unit 521 is set up the PBT tunnel alternately with the PBT tunnel configuration unit among each virtual A N;
Said PBT tunnel is based upon between the fringe node PBT tunnel processing unit 522 of AN PBT tunnel processing unit 513 and corresponding fringe node side of each AN.
Port subregion interface processing unit 511 is used for the maintenance port partition table and receives or the literary composition that sends datagram from the port of said port partition table.
Each virtual A N has the function of independent AN; Each virtual A N supports one port subregion, wholesale service provider SP (Service Provider, for example the Intemet SP that gives of the port subregion of each virtual A N; Be ISP) independent control and management, realize that layer is wholesale more than two.Each virtual A N distributes a virtual mac address (VMAC address)/VLAN; Virtual mac address (source MAC)+VLAN+ target MAC (Media Access Control) address (like the MAC Address of BNG) through virtual A N is configured for wholesale up ESP and/or the virtual mac address (target MAC (Media Access Control) address) through source MAC (like the MAC Address of BNG)+VLAN+ virtual A N is configured for wholesale descending ESP.
Embodiment six, a kind of PBT tunnel configuration system, and structural representation is as shown in Figure 6, comprising: AN610 and IP fringe node 620;
Said AN610 comprises a plurality of virtual A N, virtual A N1～virtual A Nn;
Said AN comprises a plurality of virtual A N;
Said IP fringe node comprises: L2C agent equipment 621 and a plurality of virtual IP address fringe nodes, virtual IP address fringe node k～virtual IP address fringe node m; Each virtual IP address fringe node can connect a SP network equipment; It is understandable that said L2C agent equipment is autonomous device or is integrated in the IP fringe node that the existence form of L2C equipment is not construed as limiting the invention.
Said each virtual IP address fringe node, said virtual fringe node is used to store the virtual mac address of pre-configured said virtual fringe node; Receive the PBT tunnel configuration request that the SP network equipment sends, send said PBT tunnel configuration request to said L2C agent equipment 621; Under said L2C agent equipment 621 controls, through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the said virtual access node; Communicate by letter with said virtual A N through said PBT tunnel.
Said each virtual A N is used to store the virtual mac address of pre-configured said virtual access node; Through the L2C agreement, dispose pairing the transmitting of PBT tunnel label between said virtual access node and the said virtual fringe node; Communicate by letter with said virtual fringe node through said PBT tunnel;
Said PBT tunnel label comprises:
The virtual mac address of the virtual mac address of said virtual access node, VLAN and said virtual fringe node.
In the present embodiment, said each virtual A N can comprise a port subregion, and the SP network equipment is managed through the port subregion of the PBT tunnel corresponding virtual AN of said configuration.
In the present embodiment, said PBT tunnel comprises: the descending ESP of the up ESP of the virtual mac address of virtual A N (source MAC)+VLAN+ virtual IP address fringe node MAC Address (target MAC (Media Access Control) address) sign and virtual mac address (target MAC (Media Access Control) address) sign of virtual IP address fringe node MAC Address (source MAC)+VLAN+AN.
Embodiment seven, and a kind of PBT tunnel configuration system combines concrete application example in the present embodiment, the embodiment of the invention six technical schemes are described in detail.
Structural representation is as shown in Figure 7, comprising:
Comprise: AN710 and IP fringe node 720;
Said AN710 comprises a plurality of virtual A N, virtual A N1～virtual A Nn;
Said AN comprises a plurality of virtual A N;
Said IP fringe node comprises: L2C agent equipment 724 and a plurality of virtual IP address fringe nodes, virtual IP address fringe node k～virtual IP address fringe node m; Each virtual IP address fringe node can connect a SP network equipment;
Each virtual A N comprises: port subregion interface processing unit 711, AN PBT tunnel configuration unit 712 and AN PBT tunnel processing unit 712.
Each virtual IP address fringe node comprises: L2C functional unit 721, virtual IP address fringe node PBT tunnel configuration unit 722 and virtual IP address fringe node PBT tunnel processing unit 723;
L2C functional unit 721 is used to receive the control of the SP network equipment and initiates the wholesale configuration process in PBT tunnel; Said configuration process request is sent to the L2C agent equipment.
Said L2C agent equipment is used for the fringe node PBT tunnel configuration unit 722 of each IP fringe node mutual with the AN PBT tunnel configuration unit 712 among each virtual A N, sets up the PBT tunnel between virtual IP address fringe node PBT tunnel processing unit 723 and the AN PBT tunnel processing unit 712.
In the present embodiment, each virtual A N distributes a virtual MAC address/VLAN.IP fringe node (as: BNG/BRAS) is made up of several virtual IP address fringe nodes, and each virtual IP address fringe node is made up of L2C functional unit, virtual IP address fringe node PBT tunnel configuration unit and virtual IP address fringe node PBT tunnel processing unit.
Each virtual IP address fringe node has the function of independent IP fringe node; Each virtual IP address fringe node is corresponding to one service provider SP (Service Provider, for example Internet SP, i.e. ISP); Can independently control and manage by relevant ISP, realize that layer is wholesale more than two.Each virtual IP address fringe node distributes a virtual mac address/VLAN; ISP is through the label in the pairing PBT of L2C this ISP of configuration tunnel; The label in this PBT tunnel is made up of with corresponding VLAN the virtual mac address of virtual IP address fringe node, through: the virtual mac address (target MAC (Media Access Control) address) of the virtual mac address of virtual IP address fringe node (source MAC)+VLAN+ virtual A N is configured for wholesale up ESP or passes through: virtual A N virtual mac address (source MAC)+VLAN+ " virtual IP address fringe node " virtual mac address (target MAC (Media Access Control) address) is configured for wholesale descending ESP.
Embodiment eight, and a kind of PBT tunnel configuration system comprises: access node (AN) 810 and IP fringe node 820;
Said IP fringe node comprises: L2C agent equipment 821 and a plurality of virtual IP address fringe nodes, virtual IP address fringe node k～virtual IP address fringe node m; Each virtual IP address fringe node can connect a SP network equipment; It is understandable that said L2C agent equipment is autonomous device or is integrated in the IP fringe node that the existence form of L2C equipment is not construed as limiting the invention.
Said each virtual IP address fringe node, said virtual fringe node is used to store the virtual mac address of pre-configured said virtual fringe node; Receive the PBT tunnel configuration request that the SP network equipment sends, send said PBT tunnel configuration request to said L2C agent equipment; Under said L2C agent equipment control, through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the said access node; Communicate by letter with said access node through said PBT tunnel;
Said AN is used for through pairing the transmitting of PBT tunnel label between said access node of L2C protocol configuration and the said virtual fringe node; Communicate by letter with said virtual fringe node through said PBT tunnel.
Said PBT tunnel label comprises:
The MAC Address of the virtual mac address of said virtual fringe node, VLAN and said access node.
In the present embodiment, said PBT tunnel comprises: the descending ESP of the up ESP of the MAC Address of AN (source MAC)+VLAN+ virtual IP address fringe node MAC Address (target MAC (Media Access Control) address) sign and MAC Address (target MAC (Media Access Control) address) sign of virtual IP address fringe node MAC Address (source MAC)+VLAN+AN.
Embodiment nine, and a kind of PBT tunnel configuration system combines concrete application example in the present embodiment, the embodiment of the invention eight technical schemes are described in detail.
Structural representation is as shown in Figure 9, comprising:
Comprise: AN910 and IP fringe node 920;
Said IP fringe node comprises: L2C agent equipment 924 and a plurality of virtual IP address fringe nodes, virtual IP address fringe node k～virtual IP address fringe node m; Each virtual IP address fringe node can connect a SP network equipment;
Said AN comprises: AN PBT tunnel configuration unit 911 and AN PBT tunnel processing unit 712.
Each virtual IP address fringe node comprises: L2C functional unit 921, virtual IP address fringe node PBT tunnel configuration unit 922 and virtual IP address fringe node PBT tunnel processing unit 923;
L2C functional unit 921 is used to receive the control of the SP network equipment and initiates the wholesale configuration process in PBT tunnel; Said configuration process request is sent to the L2C agent equipment.
Said L2C agent equipment is used for the fringe node PBT tunnel configuration unit 922 of each IP fringe node mutual with the AN PBT tunnel configuration unit 911 among the said AN910, sets up the PBT tunnel between virtual IP address fringe node PBT tunnel processing unit 923 and the AN PBT tunnel processing unit 912.
In the present embodiment, each virtual A N distributes a virtual MAC address/VLAN.IP fringe node (as: BNG/BRAS) is made up of several virtual IP address fringe nodes, and each virtual IP address fringe node is made up of L2C functional unit, virtual IP address fringe node PBT tunnel configuration unit and virtual IP address fringe node PBT tunnel processing unit.
Each virtual IP address fringe node has the function of independent IP fringe node; Each virtual IP address fringe node is corresponding to one service provider SP (Service Provider, for example Internet SP, i.e. ISP); Can independently control and manage by relevant ISP, realize that layer is wholesale more than two.Each virtual IP address fringe node distributes a virtual mac address/VLAN; ISP is through the label in the pairing PBT of L2C this ISP of configuration tunnel; The label in this PBT tunnel is made up of with corresponding VLAN the virtual mac address of virtual IP address fringe node, through: the MAC Address (target MAC (Media Access Control) address) of the virtual mac address of virtual IP address fringe node (source MAC)+VLAN+AN is configured for wholesale up ESP or passes through: the MAC Address of AN (source MAC)+VLAN+ " virtual IP address fringe node " virtual mac address (target MAC (Media Access Control) address) is configured for wholesale descending ESP.
Embodiment ten, a kind of access node apparatus 1000, and structural representation is shown in figure 10, comprising: a plurality of virtual A N; AN1～ANn;
Said each virtual A N can be used for setting up the PBT tunnel with the IP fringe node; The SP network equipment that is connected with the IP fringe node provides service through said PBT tunnel for the user; Each virtual A N is assigned with a virtual mac address/LAN; Be used to form and the IP fringe node between tunnel label.
Embodiment 11, a kind of IP fringe node equipment 1100, and structural representation is shown in figure 11, comprising:
A plurality of virtual IP address fringe nodes; Virtual IP address fringe node k～virtual IP address fringe node m;
Said each virtual IP address fringe node can connect a SP network equipment;
Said each virtual IP address fringe node is used for setting up the PBT tunnel with AN; The SP network equipment provides service through said PBT tunnel for the user; Said each virtual IP address fringe node is assigned with a virtual mac address/LAN; Be used to form and the IP fringe node between tunnel label.
Embodiment 12, a kind of provider backbone transmission PBT tunnel configuration method, and flow process is following:
A1, the virtual mac address of configuration virtual access node or the virtual mac address of virtual fringe node;
A2; Through the L2C agreement; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the fringe node; Or pairing the transmitting of PBT tunnel label between said virtual access node and the said virtual fringe node, or pairing the transmitting of PBT tunnel label between access node and the said virtual fringe node.
PBT tunnel label between said virtual access node and the fringe node comprises: the MAC Address of the virtual mac address of said virtual access node, VLAN and said fringe node;
Or the PBT tunnel label between said virtual access node and the said virtual fringe node comprises: the virtual mac address of the virtual mac address of said virtual access node, VLAN and said virtual fringe node;
Or the PBT tunnel label between said access node and the said virtual fringe node comprises: the virtual mac address of the MAC Address of said access node, VLAN and said virtual fringe node.
A3 is through said PBT tunnel communication.
Provide the application examples of the embodiment of the invention 12 methods to be elaborated below.
Application examples one, a kind of provider backbone transmission PBT tunnel configuration method, flow process, comprising shown in 13 like figure:
B1, the virtual mac address of configuration virtual AN;
It is understandable that the virtual mac address of configuration virtual AN can be configured through layer two control protocol (L2C), also can dispose that the concrete configuration mode can have and multiplely is not construed as limiting the invention through other modes.
B2, the SP network equipment sends the request of adding the PBT tunnel to the IP fringe node, and described request can be passed through the GMPLS signaling bear.
B3, an end points in configuration PBT tunnel;
A described end points is corresponding with IP fringe node or IP fringe node internal virtual IP fringe node MAC Address; Here an end points that disposes the PBT tunnel is meant configuration by the end points of IP fringe node to the path of access node, as: the pairing PBT tunnel at IP fringe node or IP fringe node internal virtual IP fringe node of configuration PBT tunnel label is transmitted.
B4, the IP fringe node transfers said GMPLS signaling to the L2C signaling;
B5, the IP fringe node is through another end points in L2C signaling and the said PBT of the mutual configuration of said access node tunnel;
The MAC Address of said another end points and access node or the virtual mac address of access node internal virtual AN are corresponding, and another end points in said configuration PBT tunnel promptly disposes the pairing PBT tunnel at access node or access node internal virtual AN of PBT tunnel label and transmits.
B6, IP fringe node return to the SP network equipment through the GMPLS signaling and add replying of PBT tunnel.
B7, the SP network equipment and IP fringe node carry out transfer of data through the tunnel of said interpolation.
B8, after transfer of data was accomplished, the SP network equipment sent deletion PBT tunneled requests to said IP fringe node; Described request can be passed through the GMPLS signaling bear.
B9, the end points in this side in said IP fringe node deletion PBT tunnel;
Described end points is corresponding with IP fringe node or IP fringe node internal virtual IP fringe node MAC Address; The end points in said deletion PBT tunnel is meant the transmit pairing PBT tunnel label of deletion at IP fringe node or IP fringe node internal virtual IP fringe node.
B10 converts the GMPLS signaling into the L2C signaling.
B11 is through the end points of L2C signaling deletion access node deletion PBT tunnel opposite side;
The MAC Address of described end points and access node or the virtual mac address of access node internal virtual AN are corresponding; The end points in said deletion PBT tunnel is meant the transmit pairing PBT tunnel label of deletion at access node or access node internal virtual AN.
B12, the IP fringe node returns replying of deletion PBT tunnel to the said SP network equipment.
Application examples two, a kind of provider backbone transmission PBT tunnel configuration method, flow process, comprising shown in 14 like figure:
C1, the virtual mac address of configuration virtual AN it is understandable that, the virtual mac address of said configuration virtual AN can pass through the L2C protocol configuration.
C2, the virtual mac address of the interior virtual IP address fringe node of configuration virtual IP fringe node (as: BGN).
C3, the SP network equipment send the request of GMPLS signaling to said IP fringe node and add the PBT tunnel.
C4, the IP fringe node converts said GMPLS signaling into the L2C signaling;
C5, the IP fringe node disposes the PBT tunnel through the L2C signaling to the request of L2C agent equipment.
C6, said L2C agent equipment dispose an end points in PBT tunnel alternately through L2C signaling and said access node;
The MAC Address of a said end points and access node or the virtual mac address of access node internal virtual AN are corresponding, and an end points in said configuration PBT tunnel promptly disposes the pairing PBT tunnel at access node or access node internal virtual AN of PBT tunnel label and transmits.
C7, said L2C agent equipment dispose another end points in PBT tunnel alternately through L2C signaling and said IP fringe node;
Said another end points is corresponding with IP fringe node or IP fringe node internal virtual IP fringe node MAC Address, and another end points in said configuration PBT tunnel promptly disposes the pairing PBT tunnel at access node or access node internal virtual AN of PBT tunnel label and transmits.
C8, after tunnel configuration was accomplished, said L2C agent equipment returned the PBT tunnel configuration through the L2C signaling to said IP fringe node and replys.
C9, IP fringe node reply said PBT tunnel configuration and convert the GMPLS signaling into and return to the SP network equipment.
C10 carries out transfer of data through said PBT tunnel between the SP network equipment and the access node.
C11, the SP network equipment sends GMPLS signaling request deletion PBT tunnel to said IP fringe node.
C12, the IP fringe node converts said GMPLS signaling into the L2C signaling;
C13, the IP fringe node is deleted the PBT tunnel through the L2C signaling to the request of L2C agent equipment.
C14, said L2C agent equipment delete an end points in PBT tunnel alternately through L2C signaling and said access node;
The MAC Address of a said end points and access node or the virtual mac address of access node internal virtual AN are corresponding, and the end points in said deletion PBT tunnel is meant the transmit pairing PBT tunnel label of deletion at access node or access node internal virtual AN.
C15, said L2C agent equipment delete another end points in PBT tunnel alternately through L2C signaling and said IP fringe node;
Said another end points is corresponding with IP fringe node or IP fringe node internal virtual IP fringe node MAC Address, and the end points in said deletion PBT tunnel is meant the transmit pairing PBT tunnel label of deletion at IP fringe node or IP fringe node internal virtual IP fringe node.
C16, after the tunnel deletion was accomplished, said L2C agent equipment returned the deletion of PBT tunnel through the L2C signaling to said IP fringe node and replys.
C17, IP fringe node reply said PBT tunnel deletion and convert the GMPLS signaling into and return to the SP network equipment.
More than tunnel configuration method provided by the present invention, virtual A N, virtual IP address fringe node and tunnel configuration system have been carried out detailed introduction, wherein, in the embodiment of the invention; Through dynamically setting up the IP fringe node to the tunnel between the virtual A N, the tunnel is being offered the use of the SP network equipment, realize of the control of the SP network equipment to the port subregion; Avoided in the prior art; The low problem of tunnel utilance that PBT tunnel static configuration is brought, and because the tunnel can dynamic assignment, then break down when the tunnel of configuration; SP can apply for again that the tunnel is its service, the communication of assurance normal.For one of ordinary skill in the art, according to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (15)
1. a provider backbone transmission PBT tunnel configuration method is characterized in that, comprising:
The virtual mac address of configuration virtual access node or the virtual mac address of virtual fringe node;
Through layer two control L2C agreement; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the fringe node; Or pairing the transmitting of PBT tunnel label between said virtual access node and the said virtual fringe node, or pairing the transmitting of PBT tunnel label between access node and the said virtual fringe node.
Said virtual access node and said fringe node be through said PBT tunnel communication, or said virtual access node and said virtual fringe node be through said PBT tunnel communication, or said access node and said virtual fringe node pass through said PBT tunnel communication.
2. PBT tunnel configuration method as claimed in claim 1; It is characterized in that the PBT tunnel label between said virtual access node and the fringe node comprises: the MAC Address of the virtual mac address of said virtual access node, virtual LAN VLAN and said fringe node;
PBT tunnel label between said virtual access node and the said virtual fringe node comprises: the virtual mac address of the virtual mac address of said virtual access node, VLAN and said virtual fringe node;
PBT tunnel label between said access node and the said virtual fringe node comprises: the virtual mac address of the MAC Address of said access node, VLAN and said virtual fringe node.
3. the virtual access node of a provider backbone transmission PBT is characterized in that, comprising:
Memory cell is used to store the virtual mac address of pre-configured said virtual access node;
Port subregion interface processing unit is used for receiving or the literary composition that sends datagram from said virtual mac address corresponding port;
PBT tunnel configuration unit; Be used for agreement through L2C; Dispose pairing the transmitting of PBT tunnel label between said virtual access node and the fringe node, said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual access node, virtual LAN VLAN and said fringe node;
PBT tunnel processing unit is used for according to said PBT tunnel label, and the data message that said port subregion interface processing unit is received carries out PBT frame encapsulation process, and the data message after the encapsulation is transmitted through said PBT tunnel; Receive the PBT frame data message that transmits in the said PBT tunnel, carry out the decapsulation of PBT frame according to said PBT tunnel label and handle, the data message after the decapsulation is sent to said port subregion interface processing unit.
4. virtual access node as claimed in claim 3; It is characterized in that; Said PBT tunnel configuration unit; Also be used for through said L2C agreement, dispose pairing the transmitting of PBT tunnel label between said virtual access node and the virtual fringe node, said PBT tunnel label comprises: the virtual mac address of the virtual mac address of said virtual access node, VLAN and said virtual fringe node.
5. like claim 3 or 4 described virtual access nodes; It is characterized in that; Said PBT tunnel processing unit also is used for according to said PBT tunnel label, judges whether the PBT frame data message that transmits in the PBT tunnel of said reception should be received by this virtual access node; Handle if then carry out the decapsulation of PBT frame, the data message after the decapsulation is sent to said port subregion interface processing unit according to said PBT tunnel label.
6. the virtual fringe node of a provider backbone transmission PBT is characterized in that, comprising:
Memory cell is used to store the virtual mac address of pre-configured said virtual fringe node;
The L2C functional unit is used to receive the PBT tunnel configuration request that the SP network equipment sends, and sends the request of said PBT tunnel configuration to the L2C agent equipment;
PBT tunnel configuration unit; Be used under said L2C agent equipment control; Through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the access node, said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual fringe node, virtual LAN VLAN and said access node;
PBT tunnel processing unit is used to receive the data message from the SP network equipment, carries out PBT frame encapsulation process according to said PBT tunnel label, and the data message after the encapsulation is transmitted through said PBT tunnel; Receive the PBT frame data message that transmits in the said PBT tunnel, carry out the decapsulation of PBT frame according to said PBT tunnel label and handle, the data message after the decapsulation is sent to the said SP network equipment.
7. virtual fringe node as claimed in claim 6; It is characterized in that; Said PBT tunnel configuration unit; Also be used under said L2C agent equipment control, through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the virtual access node, said PBT tunnel label comprises: the virtual mac address of the virtual mac address of said virtual fringe node, VLAN and said virtual access node.
8. like claim 6 or 7 described virtual fringe nodes; It is characterized in that; Said PBT tunnel processing unit also is used for according to said PBT tunnel label, judges whether the PBT frame data message that transmits in the PBT tunnel of said reception should be received by this virtual fringe node; Handle if then carry out the decapsulation of PBT frame, the data message after the decapsulation is sent to the said SP network equipment according to said PBT tunnel label.
9. like claim 6 or 7 described virtual fringe nodes, it is characterized in that said L2C functional unit specifically comprises:
Receiving element is used to receive the PBT tunnel configuration request that the SP network equipment sends through expansion multi protocol label exchange GMPLS signaling;
Converting unit is used for converting said GMPLS signaling into the L2C signaling;
Transmitting element is used for sending the request of said PBT tunnel configuration to the L2C agent equipment through said L2C signaling.
10. a provider backbone transmission PBT tunnel configuration system is characterized in that, comprising: access node and fringe node;
Said access node comprises a plurality of virtual access nodes, and said virtual access node is used to store the virtual mac address of pre-configured said virtual access node; Through the L2C agreement, dispose pairing the transmitting of PBT tunnel label between said virtual access node and the said fringe node; Communicate by letter with said fringe node through said PBT tunnel;
Said fringe node is used for the agreement through L2C, disposes pairing the transmitting of PBT tunnel label between said fringe node and the said virtual access node; Communicate by letter with said virtual access node through said PBT tunnel.
11. PBT tunnel configuration as claimed in claim 10 system is characterized in that said PBT tunnel label comprises: the MAC Address of the virtual mac address of said virtual access node, virtual LAN VLAN and said fringe node.
12. a PBT tunnel configuration system is characterized in that, comprising: access node and fringe node;
Said fringe node comprises: L2C agent equipment and a plurality of virtual fringe node; Said virtual fringe node is used to store the virtual mac address of pre-configured said virtual fringe node; Receive the PBT tunnel configuration request that the SP network equipment sends, send said PBT tunnel configuration request to said L2C agent equipment; Under said L2C agent equipment control, through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the said access node; Communicate by letter with said access node through said PBT tunnel;
Said access node is used for through pairing the transmitting of PBT tunnel label between said access node of L2C protocol configuration and the said virtual fringe node; Communicate by letter with said virtual fringe node through said PBT tunnel.
13. PBT tunnel configuration as claimed in claim 12 system is characterized in that said PBT tunnel label comprises:
The MAC Address of the virtual mac address of said virtual fringe node, virtual LAN VLAN and said access node.
14. a PBT tunnel configuration system is characterized in that, comprising: access node and fringe node;
Said access node comprises a plurality of virtual access nodes, and said fringe node comprises: L2C agent equipment and a plurality of virtual fringe node;
Said virtual access node is used to store the virtual mac address of pre-configured said virtual access node; Through the L2C agreement, dispose pairing the transmitting of PBT tunnel label between said virtual access node and the said virtual fringe node; Communicate by letter with said virtual fringe node through said PBT tunnel;
Said virtual fringe node is used to store the virtual mac address of pre-configured said virtual fringe node; Receive the PBT tunnel configuration request that the SP network equipment sends, send said PBT tunnel configuration request to said L2C agent equipment; Under said L2C agent equipment control, through pairing the transmitting of PBT tunnel label between said virtual fringe node of L2C protocol configuration and the said virtual access node; Communicate by letter with said virtual access node through said PBT tunnel.
15. PBT tunnel configuration as claimed in claim 14 system is characterized in that said PBT tunnel label comprises:
The virtual mac address of the virtual mac address of said virtual access node, virtual LAN VLAN and said virtual fringe node.
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| CN102104523B (en) * | 2009-12-16 | 2014-01-01 | 中兴通讯股份有限公司 | Data stream transmission method based on PBB-TE sectional tunnel, and node |
| CN102143055B (en) * | 2010-11-26 | 2013-10-09 | 华为技术有限公司 | Business control method and device for access node |
| CN102882699B (en) * | 2011-07-14 | 2015-07-29 | 华为技术有限公司 | The distribution method of fringe node and device and fringe node controller |
| CN103686466B (en) * | 2012-09-12 | 2016-12-21 | 华为技术有限公司 | The method and apparatus generating forwarding-table item for the equipment in optical-fiber network |
| CN103716245B (en) * | 2012-09-29 | 2017-02-08 | 上海贝尔股份有限公司 | Edge router based on virtual special-purpose local area network |
| CN103179228B (en) * | 2013-04-02 | 2015-08-19 | 杭州华三通信技术有限公司 | Internet Protocol address analytic method and fringe node |
| CN105515802B (en) * | 2014-09-22 | 2019-04-12 | 新华三技术有限公司 | Network virtualization method and device |
| CN106921437B (en) | 2015-12-28 | 2019-03-05 | 华为技术有限公司 | A kind of method and apparatus for establishing virtual access node in optical access network |
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