CN102404180A - Method and system for realizing Operation and Maintenance (OAM) based on Packet Based Networks (PBN) network - Google Patents
Method and system for realizing Operation and Maintenance (OAM) based on Packet Based Networks (PBN) network Download PDFInfo
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- CN102404180A CN102404180A CN2011103547990A CN201110354799A CN102404180A CN 102404180 A CN102404180 A CN 102404180A CN 2011103547990 A CN2011103547990 A CN 2011103547990A CN 201110354799 A CN201110354799 A CN 201110354799A CN 102404180 A CN102404180 A CN 102404180A
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Abstract
The invention discloses a method and a system for realizing Operation and Maintenance (OAM) based on Packet Based Networks (PBN) network, wherein the method comprises the following steps that an OAM processor of a PBN network edge device produces protocol message and encapsulates an MIM outer head to the PBN network; (2), the network edge device receives data from the PBN network, removes the outer head of the MIM data and then sends the MIM data to a receiving module of the OAM processor to be processed; meanwhile, the invention discloses a system for realizing the system. The method and system disclosed by the invention can enable the devices located in different places of the PBN network edge to realize link fault diagnosis function, and can provide guarantee for the reliability when the user uses the operator bridging network.
Description
Technical field
The present invention relates to network communications technology field, relate to a kind of method and system that realize OAM based on the PBN network.
Background technology
MIM; Be MAC-in-MAC, provider backbone bridging agreement (that is to say PBN), MIM is a kind of Layer 2 virtual private network technology; It is nested through MAC Address; User's MAC is encapsulated among the MAC of operator, and MAC isolates as internal layer, thereby has strengthened the autgmentability and the service security property of Ethernet; Solve the restriction that the service supplier only shares with 4096 VLAN, expanded the MAC Address space.
OAM connects fault management, and network monitoring end to end and operation tool are provided, and can in a large-scale L2 Ethernet, carry out such as tasks such as MAC Ping, L2 Trace Route, has simplified the fault of Carrier Ethernet and has got rid of and monitoring.Simultaneously, the CCM that in the Ethernet OAM standard, defines (continuity check message) can help to realize to be lower than 50 milliseconds protection and switch.When 3 CCM messages of losing continuously can make primary link declaration engineering noise and replaced by backup link.The Ethernet OAM technology is used to monitor the connectedness of whole network, the failure of connectivity of fixer network.
Maintaining end point periodically other remote point in same maintenance collection sends the OAM message, simultaneously, also receives the OAM message that other remote point is sent.If in three cycles, do not receive the other side's OAM message, think that then link breaks down, reporting errors.The network manager can carry out fault location or path searching through loop fuction or link trace function.
Be meant on the PBN network foundation based on the OAM system of PBN and realize OAM(Operation Administration Maintenance), the OAM monitoring point operates on the edge device of PBN network, by way of operator's bridged network, can detect the connection integrality that is in different two zone networks of operator's bridged network; The PBN network does not need to be concerned about especially the OAM message simultaneously, the also unnecessary support of the equipment in bridged network OAM, and the OAM message is encapsulated in the MIM message, in network, is used as common MIM message and handles.Do not supporting to have realized the connection fault management capability on the PBN network equipment BCB of OAM like this, selecting easily for operator's bridged network provides a kind of, guaranteed the client in the reliability of using operator's bridged network and the demand of different levels; How to realize the nested function of MIM heading of OAM data on the edge of on the devices exchange machine, this is a kind of core technology that realizes the method and system of OAM based on the PBN network.
Summary of the invention
The object of the invention provides a kind of method and system based on PBN network realization OAM, can stride the PBN network domains and realize the OAM measuring ability, for operator's bridged network layout provides reliable guarantee more, provides a kind of and selects easily flexibly.
The present invention realizes above-mentioned purpose through following scheme:
A kind of method based on PBN network realization OAM may further comprise the steps:
(1) PBN network edge device OAM processor produces protocol massages, encapsulates the outer head of MIM again and gets into the PBN network;
(2) network edge device receives the data from the PBN network, and the outer head of MIM data is peeled off, gives OAM processor receiver module again and handles.
Wherein, said step (1) further comprises:
A) PBN network edge device OAM processor produces protocol massages;
B) according to OAM protocol massages matched rule, can add last layer VLAN, identify this flow and want special flow, go out from the loopback port;
C) on the loopback port, according to vlan information, obtain the virtual port information of inlet, peel the traffic identifier vlan information simultaneously off;
D) from virtual port information, further obtain Virtual Switch Instance;
E) Virtual Switch Instance and purpose MAC find data and go out virtual port information;
F) go out virtual port information and find after, use out next jumping of appointment in the information, data message is encapsulated the outer head of MIM gets into the MIM network.
Wherein, said step (2) further comprises:
A) obtain into virtual port information according to the MIM header, peel off the MIM head of message simultaneously, become pure OAM message;
B) if find, further obtain Virtual Switch Instance into virtual port information, with the source mac learning to Virtual Switch Instance;
C) according to OAM protocol massages matched rule, can add last layer VLAN, identify this flow and want special flow, go out from the loopback port;
D) on the loopback port, according to vlan information, obtain the virtual port information of inlet, peel the traffic identifier vlan information simultaneously off;
E) according to purpose MAC be the MAC of this equipment, give OAM processor receiver module with the OAM protocol massages and handle.
Further, the outer head of data comprises in the said MIM network: outer purpose MAC, source MAC, outside VLAN and the I-TAG corresponding with Virtual Switch Instance, interior layer data is the OAM message.
The invention also discloses a kind of OAM system that realizes above-mentioned based on the PBN network, this system comprises: PBN network, and the edge switch OAM-BEB of PBN network boundary; Wherein, also comprise in the PBN network: network core switch b CB, and the port B1 and the port B2 that are connected respectively to PBN network edge switch, port A1 on the edge device and port A2; Wherein, port A1 and port A2 are the loopback port.
Application of the present invention is on the edge device of PBN network; Through being set, OAM processor protocol massages sending module and PBN network initiate on same equipment, successively to carry out; The destination node of PBN network also is that OAM processor protocol massages receives process points; For the user uses the reliability of operator's bridged network assurance is provided, needn't have spent the new equipment of cost increase again and remove to replace present nucleus equipment, saved the layout cost; Select easily flexibly for the carrier network layout provides a kind of, guaranteed client's the interests and the demand of different levels.
Description of drawings
According to embodiment and accompanying drawing the present invention is done further explain below.
Fig. 1 is based on the OAM physical link syndeton sketch map of PBN network;
The OAM that Fig. 2 is based on the PBN network sends sketch map;
The OAM that Fig. 3 is based on the PBN network receives sketch map
Fig. 4 is the OAM data transmission flow figure based on the PBN network according to the invention;
Fig. 5 is the OAM Data Receiving flow chart based on the PBN network according to the invention;
Embodiment
Fig. 1 is based on the OAM physical link syndeton sketch map of PBN network; As shown in Figure 1; Provided three switch tunnel links syndeton sketch mapes: edge switch OAM-BEB1 and OAM-BEB2 are the carrier network edge device among Fig. 1, and core switch BCB is the PBN network core device, and BCB is a representative of numerous core switch; The port A1 of edge switch OAM-BEB1 is the loopback port, and port B1 is connected to PBN network core switch b CB; The port A2 of edge switch OAM-BEB2 is the loopback port, and port B2 is connected to PBN network core switch b CB.
Switch OAM-BEB1 sends as shown in Figure 2 based on the OAM message sketch map of PBN network, and the OAM processor produces the OAM protocol massages, and according to protocol type, matched rule adds outside VLAN to protocol massages, and specifies the outbound port loopback port A1 of message; On the loopback port, message removes VLAN, and MAC finds out information according to purpose, message is packaged into the MIM message gets into the PBN network.
Switch OAM-BEB2 receives as shown in Figure 3 based on the OAM message sketch map of PBN network; Receive MIM message from B2 from the PBN network; Termination MIM message peeling outer layer head, according to protocol type, matched rule; Add outside VLAN to protocol massages, and specify the outbound port loopback port A2 of message; On the loopback port, message removes VLAN, is the MAC of local device according to purpose MAC, gives OAM processor receiver module with message and handles.
OAM data transmission flow based on the PBN network is as shown in Figure 4; The OAM processor produces the CCM message, and carries message management domain VLAN1 information, the coupling control law; The outbound port that finds the OAM message of VLAN1 is loopback port A1, adds this type of flow identifier VLAN2 simultaneously; On the loopback port, search the source virtual port information according to the VLAN2 and the VLAN1 combination of message, if search failure; Then do common two layers of forwarding, if search successfully, peeling outer layer VLAN2 information; Search physical address table according to virtual instance in the virtual port information of source and purpose MAC, obtain the purpose virtual port information, thereby obtain next hop information; According to the next skip list item, encapsulate an outer MIM content, the OAM message is packaged into the MIM message; Get into the PBN network, in the PBN network, be used as the MIM message and handle, the BCB equipment in the network need not to support OAM(Operation Administration Maintenance).
After equipment OAM-BEB2 receives the MIM message, as shown in Figure 5 based on the OAM Data Receiving flow process of PBN network, after port B2 receives the MIM data message; According to the label information that carries in the outer head; Search the termination table,, be used as common two layer message when message and transmit if search failure; If search successfully, peel off the MIM heading, remaining data are to carry the OAM message of VLAN1, the coupling control law, the outbound port that finds the OAM message of VLAN1 is loopback port A2, adds this type of flow identifier VLAN2 simultaneously; On the loopback port, search the source virtual port information according to the VLAN2 and the VLAN1 combination of message, if search failure; Then do common two layers of forwarding, if search successfully, peeling outer layer VLAN2 information; According to source virtual port corresponding virtual forwarding instance information; Study source MAC (physical address of OAM-BEB1 just) according to the purpose MAC (physical address of OAM-BEB2 just) of Virtual Switch Instance and message, searches physical address table simultaneously in Virtual Switch Instance; If the physical address of this equipment is given OAM processor receiver module and is handled; So just realized link failure maintenance management function based on the PBN network.
The above is the OAM Breakdown Maintenance management function based on PBN network of OAM-BEB1 to the OAM-BEB2 direction; Certainly, the flow chart 4 and flow chart 5 of the treatment step above of another one direction.
Adopt a kind of method and system based on PBN network realization OAM of the present invention, the BCB equipment in the network need not to support OAM(Operation Administration Maintenance) also can realize link failure maintenance management function, for the user uses the reliability of operator's bridged network assurance is provided.
Though the present invention will be described with reference to embodiment more than should be noted that, this does not mean it is limitation of the present invention, and protection scope of the present invention is limited accompanying claims rather than embodiment.
Claims (5)
1. realize may further comprise the steps the method for OAM based on the PBN network for one kind:
(1) PBN network edge device OAM processor produces protocol massages, encapsulates the outer head of MIM again and gets into the PBN network;
(2) network edge device receives the data from the PBN network, and the outer head of MIM data is peeled off, gives OAM processor receiver module again and handles.
2. the method based on PBN network realization OAM according to claim 1, it is characterized in that: wherein, said step (1) further comprises:
A) PBN network edge device OAM processor produces protocol massages;
B) according to OAM protocol massages matched rule, can add last layer VLAN, identify this flow and want special flow, go out from the loopback port;
C) on the loopback port, according to vlan information, obtain the virtual port information of inlet, peel the traffic identifier vlan information simultaneously off;
D) from virtual port information, further obtain Virtual Switch Instance;
E) Virtual Switch Instance and purpose MAC find data and go out virtual port information;
F) go out virtual port information and find after, use out next jumping of appointment in the information, data message is encapsulated the outer head of MIM gets into the MIM network.
3. the method based on PBN network realization OAM according to claim 1, it is characterized in that: wherein, said step (2) further comprises:
A) obtain into virtual port information according to the MIM header, peel off the MIM head of message simultaneously, become pure OAM message;
B) if find, further obtain Virtual Switch Instance into virtual port information, with the source mac learning to Virtual Switch Instance;
C) according to OAM protocol massages matched rule, can add last layer VLAN, identify this flow and want special flow, go out from the loopback port;
D) on the loopback port, according to vlan information, obtain the virtual port information of inlet, peel the traffic identifier vlan information simultaneously off;
E) according to purpose MAC be the MAC of this equipment, give OAM processor receiver module with the OAM protocol massages and handle.
4. according to the described method that realizes OAM based on the PBN network of one of claim 1 to 3; It is characterized in that; The outer head of data comprises in the said MIM network: outer purpose MAC, source MAC, outside VLAN and the I-TAG corresponding with Virtual Switch Instance, interior layer data is the OAM message.
5. a realization is characterized in that this system comprises: PBN network, and the edge switch OAM-BEB of PBN network boundary according to the said system based on PBN network realization OAM method of one of claim 1 to 4; Wherein, also comprise in the PBN network: network core switch b CB, and the port B1 and the port B2 that are connected respectively to PBN network edge switch; Have port A1 and port A2 on the said edge switch OAM-BEB, wherein, port A1 and port A2 are the loopback port.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833155A (en) * | 2012-08-03 | 2012-12-19 | 中兴通讯股份有限公司 | Method and device for realizing three-layer communication on two-layer single board |
| WO2013170813A1 (en) * | 2012-09-28 | 2013-11-21 | 中兴通讯股份有限公司 | Oam method and device based on multi-protocol label switching |
| CN104378245A (en) * | 2014-12-09 | 2015-02-25 | 盛科网络（苏州）有限公司 | Method and device for implementing OAM (operation, administration and maintenance) on AC (attachment circuit) port of L2VPN (layer 2 virtual private network) architecture |
| WO2016165491A1 (en) * | 2015-08-26 | 2016-10-20 | 中兴通讯股份有限公司 | Bridging service and bridging network element inspection method and apparatus |
| CN108494474A (en) * | 2018-03-23 | 2018-09-04 | 烽火通信科技股份有限公司 | Realize that business is superimposed the method and system of pretection switch using OAM message |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848756A (en) * | 2005-04-15 | 2006-10-18 | 华为技术有限公司 | Method for managing fault of Ethernet and multi-protocol tag exchange network interconnection |
| CN1968163A (en) * | 2006-10-25 | 2007-05-23 | 华为技术有限公司 | Method for service channel detection and system for providing the same |
| CN1972219A (en) * | 2005-11-23 | 2007-05-30 | 杭州华为三康技术有限公司 | Network performance test method, system and network device |
| CN1996883A (en) * | 2006-09-30 | 2007-07-11 | 华为技术有限公司 | A network and service framework for Ethernet load network management |
| CN101009627A (en) * | 2006-12-27 | 2007-08-01 | 华为技术有限公司 | A service binding method and device |
| CN101179479A (en) * | 2006-11-09 | 2008-05-14 | 华为技术有限公司 | Method, system and node for transmitting operation management and maintenance packet of ethernet |
| US20080172497A1 (en) * | 2007-01-17 | 2008-07-17 | Nortel Networks Limited | Method and Apparatus for Interworking Ethernet and MPLS Networks |
| CN101227334A (en) * | 2008-01-29 | 2008-07-23 | 中兴通讯股份有限公司 | Encapsulation and processing method of operation management maintenance protocol data unit |
| CN102170388A (en) * | 2010-02-26 | 2011-08-31 | 杭州华三通信技术有限公司 | Method, system and apparatus for obtaining information of opposite terminal backbone edge bridge devices |
| CN102185780A (en) * | 2011-05-12 | 2011-09-14 | 中兴通讯股份有限公司 | Operation, administration and maintenance (OAM) message processing method and device |
-
2011
- 2011-11-10 CN CN2011103547990A patent/CN102404180A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848756A (en) * | 2005-04-15 | 2006-10-18 | 华为技术有限公司 | Method for managing fault of Ethernet and multi-protocol tag exchange network interconnection |
| CN1972219A (en) * | 2005-11-23 | 2007-05-30 | 杭州华为三康技术有限公司 | Network performance test method, system and network device |
| CN1996883A (en) * | 2006-09-30 | 2007-07-11 | 华为技术有限公司 | A network and service framework for Ethernet load network management |
| CN1968163A (en) * | 2006-10-25 | 2007-05-23 | 华为技术有限公司 | Method for service channel detection and system for providing the same |
| CN101179479A (en) * | 2006-11-09 | 2008-05-14 | 华为技术有限公司 | Method, system and node for transmitting operation management and maintenance packet of ethernet |
| CN101009627A (en) * | 2006-12-27 | 2007-08-01 | 华为技术有限公司 | A service binding method and device |
| US20080172497A1 (en) * | 2007-01-17 | 2008-07-17 | Nortel Networks Limited | Method and Apparatus for Interworking Ethernet and MPLS Networks |
| CN101227334A (en) * | 2008-01-29 | 2008-07-23 | 中兴通讯股份有限公司 | Encapsulation and processing method of operation management maintenance protocol data unit |
| CN102170388A (en) * | 2010-02-26 | 2011-08-31 | 杭州华三通信技术有限公司 | Method, system and apparatus for obtaining information of opposite terminal backbone edge bridge devices |
| CN102185780A (en) * | 2011-05-12 | 2011-09-14 | 中兴通讯股份有限公司 | Operation, administration and maintenance (OAM) message processing method and device |
Non-Patent Citations (2)
| Title |
|---|
| 余涛等: "盘点运营商级以太网技术", 《中国教育网络》 * |
| 徐荣等: "《电信级以太网》", 31 January 2009, 人民邮电出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833155A (en) * | 2012-08-03 | 2012-12-19 | 中兴通讯股份有限公司 | Method and device for realizing three-layer communication on two-layer single board |
| CN102833155B (en) * | 2012-08-03 | 2015-12-16 | 中兴通讯股份有限公司 | Two layers of veneer realize method and the device of three layers of communication |
| WO2013170813A1 (en) * | 2012-09-28 | 2013-11-21 | 中兴通讯股份有限公司 | Oam method and device based on multi-protocol label switching |
| CN104378245A (en) * | 2014-12-09 | 2015-02-25 | 盛科网络（苏州）有限公司 | Method and device for implementing OAM (operation, administration and maintenance) on AC (attachment circuit) port of L2VPN (layer 2 virtual private network) architecture |
| CN104378245B (en) * | 2014-12-09 | 2018-01-05 | 盛科网络（苏州）有限公司 | OAM method and device is realized on the AC mouths of L2VPN frameworks |
| WO2016165491A1 (en) * | 2015-08-26 | 2016-10-20 | 中兴通讯股份有限公司 | Bridging service and bridging network element inspection method and apparatus |
| CN108494474A (en) * | 2018-03-23 | 2018-09-04 | 烽火通信科技股份有限公司 | Realize that business is superimposed the method and system of pretection switch using OAM message |
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Application publication date: 20120404 |