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A message mixed transmission transformation and forwarding method and exchanging equipment

A technology of message and transformation table, applied in the field of communication, can solve problems such as poor flexibility and adaptability, difficult implementation, slow input and output access speed, etc., to avoid the limitation of multicast protocol, overcome processing delay, and improve forwarding efficiency Effect

Active Publication Date: 2010-03-24
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. The CPU is a general-purpose CPU, and the conversion using it is often interrupted, and there are often task switching;
[0009] 2. The access speed of CPU to input and output is relatively slow;
However, the implementation of this method requires the entire network to support the multicast protocol, and the existing network does not meet this requirement
The protocol functions supported by the network of the source end and the receiver end may not be consistent, and when the source end and the receiver end cross other networks, it is required that all the networks that the message passes support the multicast protocol, which is obviously difficult to achieve , so it is less flexible and adaptable to deploy
[0013] To sum up, the current P2MP forwarding technology has poor forwarding ability and cannot meet the requirements of high-quality and large-scale video surveillance.

Method used

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  • A message mixed transmission transformation and forwarding method and exchanging equipment
  • A message mixed transmission transformation and forwarding method and exchanging equipment
  • A message mixed transmission transformation and forwarding method and exchanging equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] In this embodiment, the P2MP packet conversion information is saved by using the mixing conversion table stored in the ASIC. Specifically, the mixing conversion table stores the conversion information of the IP layer and its upper layer information during the P2MP conversion process. For the converted message, the traditional method of checking the unicast / multicast table is still used for forwarding.

[0079] image 3 It is a specific flow chart of the method for message mixing conversion and forwarding in Embodiment 1 of the present invention. Such as image 3 As shown, the method includes:

[0080] Step 301, pre-set P2MP message conversion information in the ASIC of the switch, including the conversion information of the message IP layer and its upper layer.

[0081] In the flow of the method, before the switch processes the received message, it first performs the setting step of P2MP message conversion information. In this embodiment, a mixing conversion table ...

Embodiment 2

[0151] In this embodiment, the P2MP message conversion information is recorded by using the conversion node information linked list stored in the ASIC. Specifically, the transformation node information list records the transformation modes of the information of each protocol layer in the process of P2MP transformation and message forwarding. For the converted packets, they are directly forwarded through the designated physical egress port after conversion.

[0152] Figure 5 It is a specific flow chart of the method for message mixing conversion and forwarding in Embodiment 1 of the present invention. Such as Figure 5 As shown, the method includes:

[0153] Step 501 , pre-set P2MP message conversion information in the ASIC of the switch, including the conversion information of all involved protocol layers in the message.

[0154] In this embodiment, the conversion node information linked list is used to record the message identifier, the P2MP message conversion informatio...

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Abstract

The disclosed message mix-broadcast conversion and transmission method comprises: pre-setting mix-broadcast conversion unit in hardware, and setting P2MP message conversion message; receiving the MBMSmessage for conversion; and transmitting the conversed message. It relative includes a CPU, conversion unit and at least one message dispatching port. This invention improves transmission efficiency,and frees to the limit that relative network must support MB protocol.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for message mixing conversion and forwarding and switching equipment. Background technique [0002] When deploying existing video applications such as digital video surveillance, IPTV, multimedia training, and multimedia conferencing, one-to-many replication of service traffic will be encountered. The unicast protocol itself does not support point-to-multipoint (P2MP) forwarding mode. , so it is impossible to directly use the unicast protocol to realize the replication and forwarding of packets. [0003] At present, a general way of performing P2MP forwarding is: deploying a streaming media server in the network, and using software in the streaming media server to implement P2MP forwarding. Specifically, the process of realizing P2MP packet transformation and forwarding includes: [0004] Step 1: The forwarding node in the network sends the message to the stream...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/16
Inventor 宋玉兵孙晖
Owner NEW H3C TECH CO LTD