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System, method and device for achieving link state punch through function based on PTN

A link status and function technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of increased use cost, long time, and complex processing mechanism of functional modules, so as to improve processing efficiency, simplify processing mechanism, The effect of reducing network construction costs and usage costs

Active Publication Date: 2014-07-16
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the existing LPT technology generally uses dedicated LPT messages to transmit fault information. The dedicated LPT messages require additional development of corresponding functional modules, and it takes a long time to develop the functional modules corresponding to the dedicated LPT messages. , not only increases the cost of use, but also the processing mechanism for adding functional modules is more complicated

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  • System, method and device for achieving link state punch through function based on PTN
  • System, method and device for achieving link state punch through function based on PTN

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0037] see figure 1 , figure 2 As shown, a PTN-based system for implementing the link state pass-through function provided by the embodiment of the present invention includes sequentially connected AG (access gateway, access gateway) equipment, PE1 (Provider Edge1, the first operator edge equipment ), P1 (first operator equipment), P2 (second operator equipment), PE2 (Provider Edge2, second operator edge equipment) and SR (service router, full-service router) equipment.

[0038] A PTN-based method for implementing a link state pass-through function provided by an embodiment of the present invention includes the following steps:

[0039] S1: Determine where the network failure occurs. If the network failure occurs on the UNI side (user side), go to step S2. If the network failure occurs on the NNI side (network side), go to step S7.

[0040...

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PUM

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Abstract

The invention discloses a system, method and device for achieving the link state punch through function based on a PTN and relates to the field of PTN equipment. The system comprises AG equipment, first operator PE1, first operator equipment P1, second operator equipment P2, second operator PE2 and SR equipment. The link state abnormity is detected through a CSF message mechanism of an original MPLS-TP OAM of PTN equipment, network equipment is triggered to be switched over, and not only can service damage be reduced, but also the LPT function can be achieved. When the system, method and device are used, neither additional function module nor extra pay expense will be generated, a processing mechanism can be simplified, equipment processing efficiency is improved, and the network construction cost and use cost can be lowered.

Description

technical field [0001] The present invention relates to the field of PTN (Packet Transport Network, packet transport network) equipment, in particular to a PTN-based system, method and device for realizing a link state pass-through function. Background technique [0002] With the maturity of NGN (Next Generation Network, next-generation network) technology, SR (Service Router, service router) equipment and AG (Access Gateway, Access Gateway) equipment have been widely used in the core layer of softswitch networks. The AG device is located at the access layer of the softswitch network, and the SR device and the AG device are mainly interconnected through the PTN network. [0003] In the PTN network, the fault transfer between the AG device and the SR device is mainly realized by the link-state pass through (LPT) function. LPT transparently transmits the link status of the local end of the network to the peer end of the network, and the peer end of the network can perform lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/707H04L12/24H04L45/24
Inventor 邓科阮颖
Owner FENGHUO COMM SCI & TECH CO LTD
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