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A loop realization method

An implementation method and loopback technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of undefined and inability to obtain the MAC address of the LB purpose maintenance point, etc.

Inactive Publication Date: 2008-04-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Since the OAM functions of Ethernet are independent of each other, obtaining the MAC address of the loopback destination maintenance point through methods such as CC (Continuity Check) and LT (Link Tracing) will make the OAM functions interdependent, so it cannot be obtained through CC , LT and other methods to obtain the MAC address of the LB destination maintenance point, and there is no method defined in the prior art to enable each MEP to know the MAC addresses of all MIPs on the network
Therefore, the implementation method of LB in the prior art cannot realize the LB function for all MPs in the network, and has implementation limitations

Method used

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Examples

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Embodiment Construction

[0039] The core of the present invention is: the identification information of each maintenance point in the network is set, and the maintenance endpoint carries the identification information of the loopback purpose maintenance point in a multicast loopback message and sends it; each maintenance point receiving the loopback message according to The maintenance point identification information carried in the loopback message sends a loopback response message.

[0040] The technical solution provided by the present invention will be further described below based on the core idea of ​​the present invention.

[0041] The present invention first needs to set the identification information of each maintenance point in the network, such as distributing an MPID (maintenance point identification information) for each MIP in the network, or distributing an MPID such as MIP and MEP for all MPs in the network, and this MPID Like MEPID, it is unique on the entire network.

[0042] After ...

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PUM

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Abstract

The core of the method is that setting up identification information of each maintenance point (MP) in network; placing ID information of the loop back destination maintenance point (LBDMP) in multicast loop back message (LBM), MP sends out the message; based on identification information of MP carried in LBM, each MP of having received LBM sends out loop back response message. The new mechanism disclosed in the invention prevents the procedure needed to write information of LBDMP into LBM. The invention can implement loop back for a pointed intended MP. Thus, the technical scheme disclosed in the invention consummates function of loop back of OAM solution in Ethernet so as to raise practicability of method for loop back.

Description

technical field [0001] The invention relates to the technical field of network testing, in particular to a loopback implementation method. Background technique [0002] At present, two groups, ITU-T (International Telecommunication Union Telecommunication Standardization Sector) and IEEE (Institute of Electrical and Electronics Engineers), are simultaneously conducting research on the end-to-end OAM (operation, management and maintenance) function of Ethernet, among which ITU-T is in Y.1730 The end-to-end OAM function of Ethernet is described in the two documents of Y.71ehtoam and end-to-end OAM function of Ethernet in the 802.1ag document of IEEE. In the above documents, the ideas of the two organizations are generally the same, and the solutions for OAM functions are also very similar. Among them, the ITU-T documents include alarm and performance parts, which make the OAM system more complete. [0003] At present, the industry has reached a consensus on the basic OAM func...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/24H04L29/06
Inventor 闫志勇
Owner HUAWEI TECH CO LTD