Method and device for BFD protection by utilizing multiple board cards

A technology of multiple boards and boards, applied in digital transmission systems, data exchange networks, and error prevention, etc., can solve problems such as service interruption, service interruption by aggregation layer equipment, and inability to handle it well.

Active Publication Date: 2016-03-23
NANJING ZHONGXING SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the service board of the aggregation layer device fails, all services connected to it will be interrupted
At the same time, a single service processing board will cause service interruption when upgrading the aggregation layer equipment
[0003] For this reason, there have been some inter-board protection technologies, such as LAG (LinkAggregationGroup, Link Aggregation Group), but this protection technology has some bottlenecks and defects, it can only protect the relevant business traffic on the device, and for the BFD Detect traffic and alarm, can't handle it well

Method used

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  • Method and device for BFD protection by utilizing multiple board cards
  • Method and device for BFD protection by utilizing multiple board cards
  • Method and device for BFD protection by utilizing multiple board cards

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Embodiment Construction

[0035] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] The present invention provides a method for protecting BFD by using multiple boards, such as figure 1 As shown, in the first embodiment, the method for using multiple boards to protect BFD includes:

[0037] Step S100, setting a main business processing board and at least one backup business processing board.

[0038] The interface card of the BFD device is equipped with multiple boards. The selector of the BFD device sets one of the multiple boards as the main service processing board, and the other boards are set as standby service processing boards. The main service processing board is used to realize the two-way transmission of services between the main BFD device and the remote BFD device, and the backup service processing board is mainly used as a service reserve board for the main service processing boa...

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PUM

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Abstract

The invention provides a method for BFD (Bidirectional Forwarding Detection) protection by utilizing multiple board cards. The method, applied to BFD equipment, includes the following steps: arranging a main service processing board card and at least one standby service processing board card; detecting whether the main service processing board card is off line, and then switching one of the standby service processing board cards into a new main service processing board card if the main service processing board card is off line; receiving a BFD message and a non-BFD common IP forwarding message from an interface card; and sending the BFD message to the new main service processing board card and other standby service processing board cards at the same time, and sending the non-BFD common IP forwarding message to the new main service processing board card. The invention also provides a device for BFD protection by utilizing multiple board cards. The beneficial effects of the method for BFD protection by utilizing multiple board cards are that interboard protection can be performed on BFD in a rapid, highly efficient and stable manner to ensure that services are not interrupted.

Description

technical field [0001] The invention relates to the field of bidirectional transmission detection, in particular to a method and equipment for protecting BFD (Bidirectional Forwarding Detection, bidirectional forwarding detection) by using multiple boards. Background technique [0002] With the development of science and technology and the times, Ethernet technology has gradually become an important technical means for social production and office work. In particular, with the rapid growth of smart terminal holdings, the mobile Internet industry is also becoming increasingly mature. The wireless network is developing towards an All-IP (All-IP) network, which requires the aggregation layer equipment to have a large capacity and a fast service recovery mechanism to ensure that the service will never be interrupted and highly reliable. Traditional Ethernet aggregation layer devices are usually equipped with one service processing board and multiple service interface cards, whi...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L1/22H04L12/703H04L45/28
CPCH04L45/28H04L45/247
Inventor 李青霖薛亚军邱军辉
Owner NANJING ZHONGXING SOFTWARE
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