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Network convergence method and device in virtual private local area network

A virtual dedicated, network equipment technology, applied in the field of communication, can solve problems such as useless network oscillation, long delay, waste of bandwidth resources, etc., to achieve the effect of network convergence, reduce impact, and ensure normal forwarding

Active Publication Date: 2010-09-01
NEW H3C TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0009] However, for the first solution, a large number of irrelevant MAC addresses will be deleted, which will cause useless oscillation of the network and waste a lot of bandwidth resources; for the second solution, the corresponding MAC addresses will be deleted, and re-convergence is required. A large delay is required, and in general, the MAC address after switching does not change, that is, the CE connected to the UPE remains unchanged, and there is no need to relearn
Therefore, the solution provided by the prior art when switching between active and standby PWs has a great impact on the network and takes a long time

Method used

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  • Network convergence method and device in virtual private local area network
  • Network convergence method and device in virtual private local area network
  • Network convergence method and device in virtual private local area network

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Embodiment Construction

[0051] In the present invention, after the UPE performs the switchover of the active and standby PW links, it sends a MAC address refresh message to the NPE, and the NPE in the VPN updates the corresponding relationship between the MAC address and the PW in the MAC forwarding table through the MAC address refresh message, so as to ensure that the message is in the Correct forwarding within the VPN.

[0052] The present invention provides a virtual private local area network network convergence method, which is applied to a system including at least one user-oriented operator edge network equipment UPE and a plurality of network-oriented operator edge network equipment NPE, the UPE and the plurality of NPEs belong to the same virtual private local area network, and the UPE is connected to the NPE through the active and standby virtual link PW, such as figure 2 As shown, the method includes:

[0053] Step 201, when the UPE detects that the primary PW fails, it switches to the ...

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Abstract

The invention discloses a network convergence method and a device in a virtual private local area network. The method comprises the following steps: when the UPE detects main PW fault, switching to the corresponding spare PW, transmitting a MAC address refreshing message to the NPE through the spare PW, so that the NPE in the virtual local area network updates the congruent relationship between the MAC address and the PW in a MAC forwarding list by refreshing message through the MAC address, thereby ensuring the normal forward of the message. The method does not need to delete a great deal of MAC addresses, quickly realize network convergence, and reduces the effect of link switching on the VPN.

Description

technical field [0001] The invention relates to the communication field, in particular to a virtual private local area network convergence method and equipment. Background technique [0002] VPLS (VIrtual Private LAN Service, Virtual Private LAN Service) is a point-to-multipoint L2VPN (Layer 2 Visual Private Network, Layer 2 Virtual Private Network) service provided in a public network. VPLS enables geographically isolated user sites to be connected through MAN (Metropolitan Area Network, Metropolitan Area Network) or WAN (Wide Area Network, Wide Area Network), and makes the connection effect between each site the same as in a LAN. Therefore, VPLS is also called TLS (TransparentLAN Service, Transparent LAN Service) or VPSNS (Virtual Private Switched Network Service, Virtual Private Switched Network Service). [0003] In VPLS, users are connected by a multi-point network, which is different from the P2P (Point to Point, point-to-point) connection service provided by the trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/24H04L45/74
Inventor 金小艇
Owner NEW H3C TECH CO LTD
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