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Method and apparatus for transmitting messages

A transmission method and equipment technology, applied in the field of communication, can solve the problems of traffic interruption, message sending, no communication, etc.

Inactive Publication Date: 2015-07-01
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if the link between PE2 and CE3 fails, PE1 will not be aware of the link failure between PE2 and CE3. Therefore, PE1 will not switch between the active and standby PWs, that is, PE1 will still send CE1 to CE3. The message is sent to PE2
Because the link between PE2 and CE3 fails, PE2 cannot send packets to CE3, and the traffic between CE1 and CE3 is interrupted.

Method used

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  • Method and apparatus for transmitting messages

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Embodiment Construction

[0029] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a message transmission method, which is applied in a VPLS network, such as a VPLS multi-CE device dual-homing master-standby PW networking, and multiple CE Devices (two or more CE devices) are dual-homed to the same two PE devices at the same time. These two PE devices are the first PE device and the second PE device. Based on this, multiple CE devices are dual-homed For the first PE device and the second PE device. Wherein, the link between the first PE device and the third PE device, the link between the second PE device and the third PE device are the active PW and the backup PW respectively, for example, the first PE device and the third PE device The link between the two PEs is the primary PW, and the link between the second PE and the third PE is the standby PW; or, the link between the first PE and the third PE is the standby PW, and the second PE The link between ...

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Abstract

The invention discloses a method and an apparatus for transmitting messages. The method comprises the following steps: a first PE device allocates a bypass PW for an AC corresponding to each CE device; the first PE device receives a first message to be transmitted to a target CE device; if the AC corresponding to the target CE device is out of order, the first PE device determines the bypass PW corresponding to the AC corresponding to the target CE device and sends the first message to a second PE device via the bypass PW, and the second PE device sends the first message to the target CE device. According to the method, the bypass PW is introduced to protect the AC so that the traffic of the CE device out of order in link can be forwarded normally.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a message transmission method and equipment. Background technique [0002] In an MPLS (Multiprotocol Label Switching, Multiprotocol Label Switching) network, packets can be forwarded based on labels, providing a high-speed and efficient way for packets to be transmitted in the backbone network. VPLS (Virtual Private LAN Service, virtual private LAN service) is a typical application of MPLS, which can connect user sites belonging to the same VPN (Virtual Private Network, virtual private network) and located in different geographical locations through the backbone network of the service provider. has been widely used. [0003] like figure 1 As shown in the figure, it is a schematic diagram of a VPLS network. The VPLS service is configured on PE1 (Provider Edge, service provider network edge), PE2, and PE3, and the primary VSI (Virtual Switch Instance) is configured...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/24
Inventor 肖湘光汪亮王超群
Owner NEW H3C TECH CO LTD
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