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Link tracking processing method and system

A processing method and link technology, applied in the field of link tracking processing method and system, can solve the problem that the continuity detection cannot determine the fault location, etc., and achieve the effect of improving the processing capacity

Inactive Publication Date: 2012-07-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a link tracking processing solution to solve the problem that the failure location cannot be determined by using continuity detection in the above-mentioned related technologies

Method used

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  • Link tracking processing method and system
  • Link tracking processing method and system

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Experimental program
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Embodiment 1

[0047] In this embodiment, the CC detection connectivity and the LT link tracking detection are combined, and a field is added in the CC protocol message (that is, CCM) to realize the function of the LT, and the link path is detected in real time. If a link failure is detected, link protection can be activated and switched to the protection link; if a link loop is detected, an alarm prompt can be generated; if a link change is detected, link protection can also be made Change prompt.

[0048] Figure 6 is a schematic diagram of the definition of the newly added field link path record field according to the embodiment of the present invention, such as Figure 6 As shown, a TLV field may be added in the CCM message, which is called a Link Trace Record field (Link Trace Record TLV) here, to record the MAC address of the passing MP. For example, each MP on the path of the CCM message adds the MAC address of the port to the TLV field and saves it directly. In this way, the packet...

Embodiment 2

[0055] Figure 7 is a schematic diagram of CCM implementing link tracking and detection under networking conditions according to an embodiment of the present invention, such as Figure 7 As shown, the MAC address of each port has been marked in the figure, in the process of checking the connectivity from the detection source port (that is, the initial port) to the destination port in the present embodiment, the business is forwarded through port 2 and port 3, It is sent to the destination port through the network. Such as Figure 6 As shown, MPNum indicates the number of passing MPs, and the first one can be filled with 1; Link Status indicates whether the link has changed, 0 indicates no change, and 1 indicates change.

[0056] In the specific implementation process, the tracking processing method of the link may include the following steps:

[0057] In step S702, the destination port sends a CCM message to port 1 (ie, the starting port), and port 1 adds a field to the mes...

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Abstract

The invention discloses link tracking processing method and system. The method comprises the following steps: a receiving port receives a CCM (Continuity Check Message) carrying a link trace record field for indicating CCM passing ports; and the receive port updates the content of the link trace record field, and the updated link trace record field is carried in the CCM and sent to the next port. By adopting the invention, the system can utilize the CCM to track the link state, thereby having improved processing capability.

Description

technical field [0001] The present invention relates to the communication field, in particular to a link tracking processing method and system. Background technique [0002] The Institute of Electrical and Electronics Engineers (Institute for Electrical and Electronic Engineers, referred to as IEEE) 802.1ag standard provides logical point-to-point connectivity detection for Ethernet Connectivity Fault Management (CFM), that is, continuity Detection (Connectivity Check, referred to as CC), link tracking, fault point confirmation and isolation and other functions. Wherein, the CC provides a logical point-to-point connectivity check, and the connectivity check is implemented by periodically sending a connectivity check message (Connectivity Check Message, referred to as CCM). CCM is a protocol frame that provides connectivity detection management. Each maintenance associations end point identifier (MEP for short) periodically sends multicast CCM messages to all MEPs in the li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24
CPCH04L43/0811H04L41/12H04L43/10
Inventor 黄登成
Owner ZTE CORP