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Protection switching method and system

A technology of protection switching and switching boards, which is applied in the field of communication, can solve problems such as extended service recovery time, abnormal reordering function, and compression time, so as to achieve the effect of ensuring bandwidth utilization and reducing protection switching time

Active Publication Date: 2021-01-12
FENGHUO COMM SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the destination ports of the active and standby service flows are the same, the service boards SrcFAP-A and SrcFAP-B will send to the same reorder queue of SrcFAP-C, and two sets of independent serial numbers will enter the same reorder queue It will trigger the abnormal reordering function and prolong the service recovery time. This will greatly reduce the time for software to process protection switching operations and put forward higher requirements for software design.

Method used

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  • Protection switching method and system

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] see image 3 As shown, the embodiment of the present invention provides a protection switching method, which is applied to network equipment. The network equipment includes a control unit, multiple switching boards and multiple service boards. For example, the network equipment can be figure 1 and figure 2 Node B shown. The switching board is used to forward business data between multiple business boards. The business data can be a cell, a data packet, or a specified data unit, without limitation, where the specified data unit includes a code block with a specified number of bits. For example 66B bits etc.

[0036] Protection switching methods include:

[0037] The S110 control unit sends a control command to the designated service board, and the control command carries switching information of the service channel.

[003...

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Abstract

The invention discloses a protection switching method and system, and relates to the technical field of communication. The protection switching method comprises the following steps that a control unitissues a control command to a specified service board card, wherein the control command carries switching information of a service channel; the service processing chip of the specified service boardcard generates a forwarding control message according to the control command, and sends the forwarding control message to all reachable exchange board cards through a service channel; and the switching chip of the switching board card updates the forwarding table entry according to the forwarding control message and switches the service channel. On the one hand, the bandwidth utilization rate of the service board card can be ensured, and on the other hand, the protection switching time can be reduced.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a protection switching method and system. Background technique [0002] At present, most of the optical transport network (Optical Transport Network, OTN) transmission equipment is implemented by a distributed structure (Fabric) cell switching system. The Fabric cell switching architecture includes multiple independent Fabric switching boards, which can be cascaded to achieve purpose of expanding capacity. In practical engineering applications, the electrical layer protection of optical transport network equipment can adopt the optical channel data unit (Optical channel Data Unit-k, ODUk) 1+1 dual transmission and selective reception scheme, such as figure 1 As shown, both nodes (Node) A and B include a control unit, a Fabric switching unit and a plurality of service boards, each of which is provided with a switching fabric access processor (Fabric Access Processo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/032
CPCH04Q11/0067H04Q11/0005H04B10/032
Inventor 陈永洲门高鑫周万涛
Owner FENGHUO COMM SCI & TECH CO LTD