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A virtual link pw detection method and device

A detection method and detection equipment technology, applied in the field of communication, can solve problems such as PW cannot be confirmed, achieve the effects of accelerating convergence speed, avoiding abnormal data forwarding paths, and reducing losses

Active Publication Date: 2017-12-29
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when a BEB device in an SPB network only judges whether to generate a PW connected to it based on the state of other BEB devices, it cannot be confirmed whether the PW between any two BEB devices is actually reachable.

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  • A virtual link pw detection method and device
  • A virtual link pw detection method and device
  • A virtual link pw detection method and device

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Experimental program
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Embodiment Construction

[0050]As described in the background, due to the lack of a detection scheme for the PW data forwarding path in the SPB network, the existing technical solutions cannot effectively converge the PW in the SPB network, resulting in loss of user traffic.

[0051] In view of the above problems, the core idea of ​​the present invention is: after the PW connection is established between the BEB devices in the SPB network, each BEB device is periodically sent to each other for detection messages, and the BEB devices at both ends of the PW connection pass the detection messages. Perceived connection connectivity. The detection message is a unicast message encapsulated with MAC (Media Access Control, Media Access Control in MAC tunnel, the source end is the source BEB device, the source MAC is the MAC of the sending end, the destination end is the destination BEB device, and the destination MAC is the connection peer The MAC address of the device, the message is forwarded on the interme...

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Abstract

The invention discloses a virtual link PW detection method, which is applied in an SPB network, including: the BEB device sends a detection message to the opposite end of the established PW link according to a preset period, and when the BEB device is not When any detection message sent by the peer end can be received through the PW, the BEB device determines that the PW is abnormal. Detect the reachability and communication quality of each PW in the SPB network to avoid the situation that the connection on the protocol is normal but the data forwarding path is abnormal, thereby speeding up the convergence speed of the PW in the SPB network and reducing the loss of user traffic. The invention also discloses a PW detection device at the same time.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a PW (Pseudo Wire, virtual link) detection method. The present invention also relates to a PW detection device. Background technique [0002] SPB (Shortest Path Bridge) is one of the Ethernet standards defined by IEEE (Institute of Electrical and Electronics Engineers) 802.1aq. It is a spanning tree protocol MSTP (Multi-Service Transfer Platform, multi-service The further extension of the transport platform) aims to build a large flat non-blocking two-layer network. At present, SPB-ISIS (Intermediate system to intermediate system, intermediate system to intermediate system) is generally used to share the link status in the network, and each node of the network is parallel Calculate the shortest path between each node. [0003] The existing technology creates a PW forwarding table between two BEBs (Backbone Edge Bridge, backbone network edge bridge) through the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/46
Inventor 宋小恒
Owner NEW H3C TECH CO LTD