Information acquisition method, device and system of transmission path

A technology of transmission path and indication information, applied in the field of communication, can solve problems such as no effective solutions have been proposed

Active Publication Date: 2016-11-30
SHARETRONIC DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in related technologies, only the downstream information of each MIP / MEP type device node can be obtained. For the MPLS-TP network, there is a problem of how to obtain downstream information on the transmission path of each interface MIP / MEP type device node, that is, how to obtain There is a problem of downstream information of the MIP interface on the transmission path of each interface MIP / MEP type device node, and no effective solution has been proposed in the related art at present

Method used

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  • Information acquisition method, device and system of transmission path
  • Information acquisition method, device and system of transmission path
  • Information acquisition method, device and system of transmission path

Examples

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Embodiment 1

[0025] figure 1 It is a schematic structural diagram of an information acquisition system of a transmission path according to an embodiment of the present invention, such as figure 1 As shown, the system mainly includes: a source MEP 2 of an MPLS-TP transmission path, a sink MEP 4, and one or more MIP / MEP-type device nodes 6 on the transmission path.

[0026] In practical applications, there may be multiple MIP / MEP-type device nodes per interface between the source MEP 2 and the sink MEP 4. For ease of description, this embodiment of the present invention uses one MIP / MEP-type device node per interface as For example, if there are multiple device nodes of MIP / MEP type per interface located between the source MEP 2 and the sink MEP 4 on the transmission path, the processing process of each device node of this type is the same as that of device node 6 .

[0027] Wherein, the source MEP 2 is used to send a request message, wherein the request message carries indication informati...

Embodiment 2

[0037] image 3 It is a more general implementation of the information acquisition system of the MPLS-TP transmission path in the embodiment of the present invention. In the embodiment of the present invention, the transmission path only includes equipment nodes of the MIP / MEP type for each interface, and the sink MEP Located on the device node of the MIP / MEP type for each interface. Such as image 3 As shown, the system can be described as a traceroute device that supports MIP / MEP transmission paths for each interface. The device includes: a traceroute processing module 30 on the source MEP, a traceroute processing module 32 on the incoming interface MIP, Traceroute processing module 34 and sink MEP traceroute processing module 36; wherein, traceroute processing module 30 on the source MEP is electrically connected to the traceroute processing module 32 on the incoming interface MIP, and the traceroute processing module 32 on the incoming interface MIP is connected to the ou...

Embodiment 3

[0043] Figure 4 is a schematic structural diagram of a device node of MIP / MEP type per interface according to an embodiment of the present invention, such as Figure 4 As shown, the device node includes: an incoming interface MIP 40 , and an outgoing interface MIP 42 or sink MEP 44 .

[0044] Wherein, the ingress interface MIP 40 includes: a first receiving module, configured to receive a request message initiated by the source MEP of the current transmission path, wherein the request message carries an instruction to obtain a downstream MIP or a next-hop device node The indication information of the information; the first judging module, used to judge whether the request message is terminated at the device node, if so, trigger the first acquiring module, otherwise, trigger the first forwarding module; the first acquiring module Instruction information for obtaining the information of the downstream MIP or the next-hop device node according to the instruction carried in the ...

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Abstract

The invention discloses an information acquisition method, device and system of a transmission path. The method includes: the source MEP sends a request message, carrying indication information indicating to obtain the information of the downstream MIP or the next hop device node; the incoming interface MIP of the device node of each interface MIP / MEP type on the transmission path receives the request message text; the incoming interface MIP judges whether the request message is terminated at the local device node, and if so, obtains the downstream MIP or next-hop device node information of the incoming interface MIP according to the indication information, and sends the downstream MIP or next-hop device node The information is returned to the source MEP; otherwise, the incoming interface MIP forwards the request message to the outgoing interface MIP of the device node, and the outgoing interface MIP forwards the request message to the next-hop device node. Through the present invention, the acquisition function of downstream information can be realized on the transmission path where there are MIP / MEP type equipment nodes per interface.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method, device and system for acquiring information of a transmission path. Background technique [0002] Multi-protocol Label Switching (Transport Profile for Multi-protocol Label Switching, referred to as MPLS-TP) is based on Multi-protocol Label Switching (Multi-protocol Label Switching, referred to as MPLS) technology, enhanced to meet the needs of transmission Some of the features, including powerful operation, administration, maintenance (OAM for short) and good survivability, while deleting some complexities in IP that are not conducive to transmission use, for example, label fusion , the penultimate jump pop-up, etc. [0003] MPLS-TP OAM supports two deployment models of Maintenance Intermediate Point (MIP for short) / Maintenance End Point (MEP for short), which are: [0004] MIP / MEP type of each node: each device node on the transmission path is a MIP or MEP, that i...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/723
Inventor 耿四化潘文俊
Owner SHARETRONIC DATA TECH CO LTD
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