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Method and device for flow switching in Virtual Private LAN Service (VPLS) network

A technology for virtual private use and traffic switching, applied in the field of network communication, it can solve the problems of long time and cannot guarantee the fast switching time of 50ms at the carrier level, and achieve the effect of shortening the time of traffic switching and ensuring the fast switching time.

Active Publication Date: 2009-11-04
NEW H3C TECH CO LTD
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AI Technical Summary

Problems solved by technology

Obviously, in addition to the fault detection time, it takes a long time to update the hardware settings for each VSI one by one, especially in a large-scale VSI environment, such as an environment with more than 4000 VSIs, it takes much time to switch traffic. Carrier-level 50ms fast switching time cannot be guaranteed

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  • Method and device for flow switching in Virtual Private LAN Service (VPLS) network
  • Method and device for flow switching in Virtual Private LAN Service (VPLS) network
  • Method and device for flow switching in Virtual Private LAN Service (VPLS) network

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] The method provided by the present invention mainly includes: adding the VSIs using the same active PW and standby PW into the same fast switching group in advance, and establishing forwarding entries pointing to the active PW and forwarding entries pointing to the standby PW for each VSI; When the active PW is running normally, each VSI in the control fast switching group uses the forwarding entry pointing to the active PW for packet forwarding; when a failure of the active PW is detected, each VSI in the controlling fast switching group uses the The forwarding entry of the PW performs packet forwarding.

[0020] The above method will be described in detail below in conjunction with specific embodiments. figure 2 Detailed method flowchar...

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Abstract

The invention provides a method and a device for flow switching in virtual private local area network service (VPLS) network, wherein a master pseudo-wire (PW) and a backup PW connected with user-oriented provider edge equipment (UPE) are disposed in the VPLS network. The method comprises: adding virtual switching instances (VSI) adopting the same master and backup PWs into a fast switching group in advance and respectively establishing forwarding table entries pointing to the master and backup PWs for each VSI; when the master PW in the fast switching group normally operates, controlling each VSI in the fast switching group to forward a message by the forwarding table entry pointing to the master PW; and when detecting that the master PW fails, controlling each VSI in the fast switching group to forward the message by the forwarding table entry pointing to the backup PW. The invention can largely shorten time for flow switching and ensure carrier-grade fast switching time of 50ms.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and device for traffic switching in a Virtual Private Local Area Network Service (VPLS) network. Background technique [0002] Virtual Private Local Area Network Service (VPLS, Virtual Private LAN Service) is a virtual private network technology used to implement multipoint-to-multipoint Layer 2 virtual private network (VPN, Virtual Private Network) functions on the public network, which can enable Users are connected through a wide area network or a metropolitan area network, thus forming a virtual local area network, and each virtual local area network is called a virtual switching instance (VSI). [0003] The VPLS network is mainly composed of user-oriented operator edge network equipment (UPE, Userfacing-Provider Edge), network-oriented operator edge network equipment (NPE, NetworkProvider Edge) and user edge network equipment (CE, Custom Edge). Among ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/46H04L12/24
Inventor 陈勇张浩杰徐永健高广新
Owner NEW H3C TECH CO LTD
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