Load sharing method and router under hierarchical virtual dedicated local area network service environment

A virtual dedicated, load sharing technology, applied in the field of data processing, can solve problems such as bandwidth waste and achieve the effect of improving bandwidth utilization

Active Publication Date: 2012-01-11
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that under normal circumstances, the backup link is always idle, which will cause a waste of bandwidth

Method used

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  • Load sharing method and router under hierarchical virtual dedicated local area network service environment
  • Load sharing method and router under hierarchical virtual dedicated local area network service environment
  • Load sharing method and router under hierarchical virtual dedicated local area network service environment

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Embodiment Construction

[0078] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0079] In the present invention, multiple directly connected uplink NPEs can be configured for one UPE, that is, the UPE is directly connected to multiple NPEs through multiple U-PWs.

[0080] The following describes the MAC address learning process, data forwarding process, and U-PW switching process in the HVPLS environment where one UPE is configured with multiple uplink NPEs.

[0081] To forward data packets, the MAC address must be learned first, Figure 5 The flow chart of MAC address learning in the HVPLS environment provided by the embodiment of the present invention, such as Figure 5 As shown, the specific steps are as follows:

[0082] Step 500: Configure directly connected multiple uplink NPEs for a UPE, and the multiple NPEs are mutual backups to form an NPE backup group; multiple U-PWs between the UPE and the multiple ...

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Abstract

The invention discloses a load sharing method and a router under a hierarchical virtual dedicated local area network service (HVPLS) environment. A UPE (User Provider Edge Router) is directly connected with a plurality of NPEs (Network Provider Edge Routers), the NPEs are mutual backups to form an NPE backup group, and the UPE and a plurality of U-PWs (User-Pseudo Wires) among the NPEs form a U-PW backup group. The method comprises the steps of: receiving an unknown source MAC (Medium Access Control) address message sent by a direct-connected CE (Custom Edge) by the UPE, learning a source MAC address of the message, establishing an MAC entry, selecting one U-PW from the U-PW backup group, recording the U-PW identification in a U-PW identification item of the MAC entry, forwarding the message from the selected U-PW; and receiving a unicast data message sent by the direct-connected CE by the UPE, searching the U-PW identification corresponding to the source MAC address of the message from the self-established MAC entry, and forwarding the message from the U-PW corresponding to the U-PW identification. The invention realizes load sharing under an HVPLS environment, thus the bandwidth utilization rate is increased.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a load sharing method in an HVPLS (Hierarchical Virtual Private LAN Service) environment, a User Provider Edge Router (UPE, User Provider Edge Router), and a network service provider. Or edge router (NPE, Network Provider Edge Router). Background technique [0002] First, give a brief description of the basic concepts involved in this application: [0003] Multi-Protocol Label Switching (MPLS, Multi-Protocol Label Switching) Layer 2 (L2, Layer 2) Virtual Private Network (VPN, Virtual Private Network): It is to transparently transmit the user's Layer 2 data on the MPLS network. From the user's point of view, the MPLS network is a Layer 2 switching network, through which Layer 2 connections can be established between different sites (SITE). [0004] VPLS: A point-to-multipoint L2VPN service provided in public networks. VPLS enables geographically isolated user si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L29/08H04L45/60
Inventor 王军蒋益群
Owner NEW H3C TECH CO LTD
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