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Method, device and system for dual-homing protection switching in hybrid configuration of packet transport network

A packet transport network, dual-homing protection technology, applied in the field of communications

Active Publication Date: 2020-05-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to provide a method, device and system for PTN hybrid configuration dual-homing protection, so as to solve the protection requirements of dual-homing service hybrid configuration applications in PTN engineering deployment

Method used

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  • Method, device and system for dual-homing protection switching in hybrid configuration of packet transport network
  • Method, device and system for dual-homing protection switching in hybrid configuration of packet transport network
  • Method, device and system for dual-homing protection switching in hybrid configuration of packet transport network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Embodiment 1: No failure situation:

[0078] The first step is to determine whether the primary and secondary attributes of the core landing site (home node) are consistent with the primary and secondary attributes of the access link side;

[0079] In the second step, if the comparison results are consistent, directly enter the original bridging process; if not, reverse the decision result of the access side MC-LMSP / active / standby MC-LAG protection, and then enter the original bridging process according to the inversion result. Complete bridging to realize normal forwarding of business flows.

[0080] like Figure 4 As shown, it is a schematic diagram of a service path when the PTN hybrid configuration dual-homing protection of the present invention is faultless.

[0081] For the services of "PE-1~PE-N", because the primary and secondary attributes of the core landing point (home node) are consistent with the primary and secondary attributes of the access link side, i...

Embodiment 2

[0084] Embodiment 2: PTN network side failure (1) Situation:

[0085] The first step is to determine whether the primary and secondary attributes of the core landing site (home node) are consistent with the primary and secondary attributes of the access link side;

[0086] In the second step, if the comparison results are consistent, directly enter the original switching process; if not, reverse the decision result of the MC-LMSP / active / standby MC-LAG protection on the access side, and enter the original switching process according to the negative result. Realize end-to-end protection of service flows.

[0087] like Figure 5 As shown, it is a schematic diagram of the service path after the switching is completed when the PTN hybrid configuration dual-homing protection network side fails (1) according to the present invention.

[0088] "Network-side fault (1)" refers to the link between "edge equipment of the operator's bearer network at the access layer (PE-1~PE-2N)" and "edg...

Embodiment 3

[0092] Embodiment three: PTN network side failure (two) situation:

[0093] The first step is to determine whether the primary and secondary attributes of the core landing site (home node) are consistent with the primary and secondary attributes of the access link side;

[0094] In the second step, if the comparison results are consistent, directly enter the original switching process; if not, reverse the decision result of the MC-LMSP / active / standby MC-LAG protection on the access side, and enter the original switching process according to the negative result. Realize end-to-end protection of service flows.

[0095] like Image 6 As shown, it is a schematic diagram of the service path after the switching is completed when the PTN hybrid configuration dual-homing protection network side failure (2) of the present invention is performed.

[0096] "Network-side fault (2)" refers to the link between "edge equipment of the operator's bearer network at the access layer (PE-1~PE-2...

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Abstract

The present invention provides a method, device and system for dual-homing protection switching in a mixed configuration of a packet transmission network; the method includes: comparing the active and standby information of the network side cross-rack pseudowire MC-PW protection group on the home node with the access The consistency of the active and standby information of the cross-rack linear multiplex section MC-LMSP protection group or the active-standby cross-rack link MC-LAG aggregation group on the link side, and the comparison result is obtained. According to the comparison result, the dual-homing protection Bridging or switching is managed.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, device and system for dual-homing protection switching of a packet transport network. Background technique [0002] With the rapid deployment of 3G networks in my country, wireless backhaul PTN (Packet Transport Network, Packet Transport Network) technology came into being, and operators represented by China Mobile quickly deployed the world's largest The newly built 2G / 3G / 4G services (base stations) are mostly carried on the PTN network, and the original 2G services (base stations) are also gradually migrated from the SDH (Synchronous Digital Hierarchy) network to the PTN network. [0003] In the metropolitan area PTN network, the linear protection has the inherent defect of full blocking of services at the core landing node PE (Provider Edge, core layer operator bearer network edge equipment) failure (such as core landing PE equipment power failure). Therefore, represented by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
CPCH04L41/00
Inventor 张雷钱玉多程兵旺
Owner ZTE CORP
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