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Pseudo wire (PW)-based double-returning protection switching method and system

A dual-homing protection and switching module technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of unreasonable, complex traffic forwarding process, and reduce traffic forwarding and protection efficiency, so as to improve efficiency and save money. process, the effect of effective forwarding

Active Publication Date: 2016-01-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A forwarding rule suitable for different access link protection modes needs to be established between PE1 and PE2. The traffic forwarding process is complicated and unreasonable, which reduces the efficiency of traffic forwarding and protection.

Method used

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  • Pseudo wire (PW)-based double-returning protection switching method and system
  • Pseudo wire (PW)-based double-returning protection switching method and system
  • Pseudo wire (PW)-based double-returning protection switching method and system

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Embodiment Construction

[0043] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] Such as image 3 As shown, it is a schematic flowchart of the first embodiment of the PW dual-homing protection switching method of the present invention.

[0045] It should be emphasized that: image 3 The flow chart shown is only a preferred embodiment, and those skilled in the art should know that any embodiment constructed around the idea of ​​the present invention should not deviate from the scope covered by the following technical solutions:

[0046] Establish the main PW of the first node and the second node, and establish the backup PW of the first node and the third node, the backup PW is the protection of the main PW; establish a connection between the RNC server and the second node the primary access link of the RNC server, establish a backup access link between the RNC server and the third node, and...

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Abstract

The invention discloses a pseudo wire (PW)-based double-returning protection switching method, which comprises the steps of establishing a main PW between a first node and a third node, and establishing a standby PW between the first node and the third node; establishing a main access link between an RNC server and a second node, establishing a standby access link between the RNC server and the third node, and establishing a first auxiliary PW and a second auxiliary PW between the second node an the third node; switching the output flow of the RNC server from the forwarding mode of the main PW into the forwarding mode of the first auxiliary PW on the condition that the main PW fails; and / or on the condition that the main access link fails, switching the output flow of the RNC server from the forwarding mode of the main access link into the forwarding mode of the standby access link and switching the output flow of the RNC server from the forwarding mode of the standby PW into the forwarding mode of the second auxiliary PW. The invention also discloses a PW-based double-returning protection switching system. Based on the technical scheme of the invention, the flow forwarding process is reasonably and effectively realized. Meanwhile, the flow forwarding process is saved. Both the flow forwarding efficiency and the protection efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a PW dual-homing protection switching method and system. Background technique [0002] With the continuous development of mobile communication technology, more and more mobile terminals have entered people's daily life and work. In order to ensure the normal communication of the mobile terminal, it is necessary to deploy protection links to the links of each node in the mobile communication network. A PW (pseudo-wire, pseudo-wire) dual-homing protection group is a common networking in a mobile backhaul network. refer to figure 1 , is a schematic diagram of a dual-homing protection embodiment in the prior art. PE1 (node ​​1) and PE2 (node ​​2) are deployed as dual-homing nodes relative to an RNC (RadioNetwork Controller, radio network controller) server, providing dual-homing protection from PE3 (node ​​3) to the RNC server. By deploying BFD (Bidirectional Forward...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04W24/04
CPCH04W24/04
Inventor 吴学智
Owner ZTE CORP