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Hybrid configuration dual-homing protection switching method, device and system for packet transmission network

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

Active Publication Date: 2017-02-22
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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  • Hybrid configuration dual-homing protection switching method, device and system for packet transmission network
  • Hybrid configuration dual-homing protection switching method, device and system for packet transmission network
  • Hybrid configuration dual-homing protection switching method, device and system for packet transmission 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] Such as 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...

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] Such as 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 "...

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] Such as Figure 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~...

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Abstract

The invention discloses a hybrid configuration dual-homing protection switching method, device and system for a packet transmission network. The method comprises the steps: comparing the host and backup information of a cross-rack pseudo-wire MC-PW protection group at a network side on an attribute node and the host and backup information of a cross-rack linear multiplex section MC-LMSP protection group or a host and backup cross-rack link MC-LAG aggregation group at an access link side, obtaining a comparison result, and carrying out the management of the dual-homing protection bridging or switching according to the comparison result.

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 transmission network. Background technique [0002] With the rapid rollout 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 In the PTN network, the new 2G / 3G / 4G services (base stations) are mostly carried on the PTN network, and the original 2G services (base stations) are 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, represe...

Claims

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Application Information

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IPC IPC(8): H04L12/24
CPCH04L41/00
Inventor 张雷钱玉多程兵旺
Owner ZTE CORP
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