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Message unvarnished transmission method and apparatus

A message and encapsulation type technology, applied in the field of data communication, can solve the problems that ARP learning cannot be realized, the same medium cannot be used, and oE encapsulation is lost.

Inactive Publication Date: 2008-02-27
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is also a need to transparently transmit Layer 2 information between different media. For example, between the IPoEoA encapsulation type defined by RFC1483b and IPoE or IPoEoV, since ATM and Ethernet are different access link types, the same medium of PWE3 cannot be used to implement Transparent transmission, but when treated as a heterogeneous medium, oE encapsulation is lost, so that functions such as ARP learning cannot be realized

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  • Message unvarnished transmission method and apparatus
  • Message unvarnished transmission method and apparatus
  • Message unvarnished transmission method and apparatus

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Embodiment Construction

[0028] The technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The transparent transmission method of the message in the embodiment of the present invention effectively analyzes the characteristics of the two-layer encapsulation of the IP / PPPoEoX message, combines the existing PWE3 control protocol, and separates the oE part in the two-layer encapsulation from the original message The Layer 3 transport protocol (IP / PPP) part of the network is reorganized into a new packet encapsulation form and forwarded in the PW, and when the PW is exported, based on the IPoE packet reassembled at the source end, the corresponding export encapsulation adaptation is performed. On the basis of retaining the oE link information of the original message, the encapsulation of the outgoing message is completed. In the transparent transmission of the PWE3 message of the heterogeneous medium, ...

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Abstract

This invention relates to a transmitting method for messages including: re-packaging received messages carrying with messages packaged on Ether second and third layers and transmitting them in a false link, and then re-packaging the messages acording to the package kind of the false linkd output. This invention also discloses a transmission device including: a re-transmission packaging module repackaging received messages carrying with messages packaged on second and thirs Ether layers and transmitting them in a false link, a repackaging module used in repackaging messages according to the package kind of the output false link, which does not lose the second layer packaged information in transmission and preserves the second layer head information of important original message oE to increase flexibility of networking when accessing PWE3.

Description

technical field [0001] The embodiments of the present invention relate to the field of data communication, in particular to a method and device for transparent transmission of messages. Background technique [0002] In the current packet-switching network, the Ethernet link is a basic link widely used on the network because of its high cost performance and taking into account both Layer 2 switching and Layer 3 switching. [0003] Virtual end-to-end forwarding (Pseudo-Wire Edge-to-Edge, PWE3) is to simulate asynchronous transfer mode (asynchronous transfer mode, ATM), frame relay, Ethernet, low-speed time division in packet switching network (PSN, Packet Switched Networks) Multiplexing (Time Division Multiplexing., TDM) circuit and Synchronous Optical Network (Synchronous Optical Network, SONET) / Synchronous Digital Hierarchy (Synchronous Digital Hierarchy, SDH) and other basic features of the technology, pseudo-link (Pseudo Wire, PW ) functions include encapsulating servic...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L12/46
Inventor 裴䶮姚金源
Owner HUAWEI TECH CO LTD
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