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A TRUNK dispensing method

A technology of forwarding engine and analysis module, applied in the direction of digital transmission system, electrical components, transmission system, etc., to achieve the effect of optimizing the use of export bandwidth

Inactive Publication Date: 2009-09-30
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
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Problems solved by technology

[0015] In view of the defects in the prior art, the purpose of the present invention is to provide a trunk distribution method, which takes into account the particularity of distributing voice and video services and distributing pure data services, can fully utilize the bandwidth of each sub-port, and at the same time To a certain extent, it solves the problem of optimizing the use of egress bandwidth

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] Such as figure 2 , 3 As shown, the TRUNK distribution method of the present invention comprises the following steps:

[0035] Step 1, after the packet switching chip receives the packets, the received packet analysis module Packet parse performs a matching analysis of the packet sequence attributes for each received packet according to the matching rules, and sends all the matching results to the forwarding engine module Forward engine; the packet sequence attributes It is used to indicate whether this type of packet flow needs to be forwarded according to the time sequence of receiving at each sending port;

[0036] Step 2, the packet buffer module Buffer calculates the congestion degree of each sending sub-port, and feeds back the calculated congestion information to the front-end forwarding engine module Forwardengine;

[0037] Step 3: The forwa...

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Abstract

A TRUNK dispensing method relates to packet switching chip comprising following steps: 1. after the packet switching chip receives, the packet receiving analysis module performs matching analysis for packet sequence attribute according to matching rule; 2. the packet buffer module computes congestion degree of every transmitting subport; 3. forwarding engine module decides routing for transmitting subport according to 1 and 2; if packet flow needs to forward according to received time sequence, selecting transmitting subport corresponding to HASH value of the packet for forwarding; if packet flow does not need to forward according to received time sequence, selecting transmitting subport of minimum accumulation value according to congestion information for forwarding. The TRUNK dispensing method of the invention considers particularity of both dispensing voice and video chat service and pure data service, can fully utilizes bandwidth of every subport, solve problem to a certain degree of optimized use for outlet bandwidth.

Description

technical field [0001] The invention relates to a packet switching chip, specifically a method for distributing a TRUNK, especially a method for distributing a TRUNK of a chip for packet switching. Background technique [0002] In the packet switching chip, TRUNK means port aggregation, which is to combine two or more physical ports into a logical port through software configuration. The physical bandwidth of this logical port is equal to the sum of the bandwidth of all member ports, so that Provides a flexible method of increasing port bandwidth without additional modifications. [0003] Since a TURNK group includes multiple sub-ports, this involves selecting which sub-physical port according to what criteria when a packet needs to be forwarded from the TURNK group. The distribution methods provided by most switching chips on the market are based on the HASH method or the round-robin distribution method. The two methods are described below: [0004] 1) HASH method: [0...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/743H04L12/801
Inventor 徐剑辉
Owner FENGHUO COMM SCI & TECH CO LTD
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