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Method for separating route ARP information and edit information in ASIC chip

An ASIC chip and a technology for editing information, applied in the field of communication, can solve problems such as low efficiency, and achieve the effect of improving efficiency and simplifying software design

Active Publication Date: 2016-07-27
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the port is up / down, the nexthop of the same port will be refreshed, and the efficiency is relatively low

Method used

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  • Method for separating route ARP information and edit information in ASIC chip

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Embodiment Construction

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0022] combine figure 1 As shown, the present invention discloses a method for separating routing ARP information and editing information in a chip. The following uses IP routing and forwarding as an example to illustrate the method for separating ARP and message editing. After routing IPda searches in the present invention, can obtain table DsFwd, wherein comprise two important informations; One is nexthopPtr, is used for indexing DsNextHop to obtain the information of message editing and export interface; Another dstPortid, is used for indexing DsPortProf to come Get export information.

[0023] The editing information can be divided into two parts, one is the editing of the three-layer information, which can be tunnel, mpls label, etc. Another layer 2 information editor is mainly...

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Abstract

The invention discloses a method for separating route ARP information and edit information in ASIC chip, and the method comprises the following steps: IP route forward serves as a start, route IPda searches to obtain a chart Dsfwd, the chart Dsfwd comprises nexthopPtr information and dstPortid information, and the nexthopPtr is used for indexing DsNextHop to acquire message editing information and outlet interface information; the dstPortid is used for indexing DsPortProf to acquire outlet information. Under the condition of small price of chip design, the software design is simplified, and the efficiency of the software is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for realizing the separation of routing ARP information and editing information in a chip. Background technique [0002] In the routed network, the forwarding of the three-layer message is to find the gateway (gateway) and the outgoing interface (interface) through IPDa, and then learn the MAC address and the port physical exit by broadcasting the ARP message on the interface. After learning the ARP , you can find the exit through the MAC address. Therefore, at the protocol level, the forwarding of Layer 3 packets can be completed by looking at two parts. Find the gateway first, and then find the exit through the gateway. Similarly, both MPLS and IPtunnel networks need to learn ARP information to find the real exit. [0003] In response to this problem, different chips have different implementation methods. There are two commonly used implementation methods: o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/721H04L45/74
CPCH04L45/36H04L45/74
Inventor 何志川孟忠伟
Owner SUZHOU CENTEC COMM CO LTD