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Message bypassed transmission method

A message and pseudo-link technology, applied in the field of data communication

Inactive Publication Date: 2010-09-15
HUAWEI TECH CO LTD
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  • Summary
  • 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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Embodiment Construction

[0027] The transparent transmission method of the message in the embodiment of the present invention includes:

[0028] Step 1, re-encapsulate the received packets carrying Ethernet Layer 2 and Layer 3 encapsulation, and transmit them in the pseudo-link;

[0029] Step 2, when outputting the message, re-encapsulate the message according to the link encapsulation type of the pseudo-link egress.

[0030] As shown in Table 2, it is a new type of data encapsulation, and a Martini encapsulation type is newly expanded on the control plane. This type is temporarily described as a layer 2 transparent transmission type.

[0031] Table 2,

[0032] No.

[0033] Therefore, on the data forwarding plane, the corresponding relationship between the protocol (such as the IP protocol) and the MAC address that the packet is encapsulated for the first time is preserved, and the function of the ARP protocol in the ethernet link is used to improve the transparent transmission and access o...

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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 embodiment of the present invention relates to the field of data communication, in particular to a method 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 service-specific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/46
Inventor 裴姚金源裴
Owner HUAWEI TECH CO LTD