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Method and device for implementing terminal-to-terminal link detection, routing strategy rearrangement

A link detection and link technology, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems that the end-to-end reliability cannot be deployed, and the link detection mechanism cannot be deployed for end-to-end reliability. Achieve the effect of improving network availability, low overhead, and realizing link detection

Inactive Publication Date: 2008-03-05
HUAWEI TECH CO LTD
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Problems solved by technology

However, many CEs do not support BFD technology. If CE1 and CE3 do not have the BFD capability, a BFD session cannot be established between CE1 and CE3. In this way, end-to-end reliability between CE1 and CE3 cannot be deployed.
Thus, link detection mechanisms cannot be truly deployed for end-to-end reliability

Method used

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  • Method and device for implementing terminal-to-terminal link detection, routing strategy rearrangement
  • Method and device for implementing terminal-to-terminal link detection, routing strategy rearrangement
  • Method and device for implementing terminal-to-terminal link detection, routing strategy rearrangement

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, specific examples are given below to further describe the present invention in detail.

[0050] The present invention provides an end-to-end link detection method, the main idea of ​​which is: establish a reliability detection mechanism session between two network devices, and bind one end of the network device to the established reliability detection mechanism session It is desired to detect one or more link states on the other-end network device, so that the other-end network device notifies the one-end network device of the link state on its own network device through the established reliability detection mechanism session . Wherein, the reliability detection mechanism may adopt any detection mechanism, for example, BFD technology may be used.

[0051] The present invention takes the BFD technology as an example to describe in detail the method for realizing end-to-end l...

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Abstract

The detection method establishes dialog based on reliability detection mechanism (RDM) between two network devices (ND). The method includes steps: link state on ND is bound on the established dialog based on RDM; ND detects link state bound on this end, and tells the link state to ND at opposite terminal through dialog based on RDM. The invention also discloses means for implementing rearrangement of route strategy. The means includes steps: receiving link state, ND configures coincidence relation between route strategy and link; ND determines link corresponding to selected route strategy currently, and carries out rearrangement of route strategy based on the link state. The invention also discloses link detection device of implementing end to end, as well as device for implementing rearrangement of route strategy. The invention can realize link detection from end to end, and trigger off rearrangement in time.

Description

technical field [0001] The invention relates to network detection technology, in particular to a method and device for realizing end-to-end link detection, and a method and device for routing strategy switching. Background technique [0002] At present, with the acceleration of the integration of the three networks, various services have higher and higher requirements on the availability of the Internet Protocol (IP) bearer network. Network availability refers to the percentage of the time for transmitting data to the total time under the premise that the quality requirements between network nodes can be guaranteed. If the network has high availability, it can provide services without failure for a long time. At present, the main measures to improve network availability are: by setting redundant equipment and links, quickly detecting faults, and quickly performing switching to reduce the average fault repair time, thereby improving network availability. [0003] Currently,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24H04L12/56H04L29/06
CPCH04L45/28H04L45/00H04L45/22
Inventor 张志峰李晓武曹芹
Owner HUAWEI TECH CO LTD
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