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Method for realizing mixed forward of exchange chip and network processor

A network processor and switching chip technology, applied in the field of IP network communication, can solve problems such as affecting the forwarding line-speed performance, increasing the burden of the network processor, and increasing the development task and workload of the network processor, and achieves simple effects.

Active Publication Date: 2010-02-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the burden on the network processor is increased, which affects the line-speed performance of forwarding, and also increases the development tasks and workload of the network processor.

Method used

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  • Method for realizing mixed forward of exchange chip and network processor
  • Method for realizing mixed forward of exchange chip and network processor
  • Method for realizing mixed forward of exchange chip and network processor

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] Assign a global port number consistent with the port number rules in the ASIC switch chip MAC forwarding table for the network processor, and use the global port number to represent the network processor, so that the ASIC switch chip can forward messages to the network processor according to the global port number. network processor. According to MAC, VLAN, port, MAC+VLAN or these comprehensive information, it is judged whether the service needs to be redirected, and if redirection is required, the network processor will process the service. Rewrite MAC+VLAN and the port item as a network processor, and write it into the MAC forwarding table (set a static flag to prevent aging). In this way, the packets with the MAC+VLAN feature can be redirected to the network processor by using the MAC forwarding table, and the network processor continues to process and forward the packets. If the obtained outbound port points to the network processor, the message will be sent to the...

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PUM

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Abstract

The invention discloses a method realizing mix and transmission of switch chip and network processor. The steps include: a global interface number consistent with the interface number in ASIC switch chip MAC forwarding table is allocated to the network processor and is used to present the network processor; in MAC forwarding table, a message with the feature of MAC+VLAN is transmitted to the network processor, the feature corresponds with the global interface number and the MAC forwarding table is arranged with static state; when the message received needs re-orientation, search MAC forwardingtable according to MAC+VLAN feature and find out the global interface number; the ASIC switch chip transmits the message to the network processor according to the global interface number and the network processor continues the processing and message transmission. The technical proposal in the invention has the advantages of no ACL rules waste and the network processor burden and development workload reduction.

Description

technical field [0001] The present invention relates to an IP (Internet Protocol) network communication technology, in particular, relates to a MAC (Media Access Control) forwarding table to realize mixed forwarding processing method of switching chip and network processor. Background technique [0002] With the rapid development of the Internet, IP networks have gradually become an indispensable tool in people's daily work and life, and have put forward extremely high requirements on the forwarding performance and service functions of data communication equipment. [0003] At present, the application of data communication network requires that data communication equipment can not only achieve high forwarding performance, but also provide rich and complex advanced functions. Therefore, equipment manufacturers generally use application-specific integrated circuits (ASIC, Application Specific Integrated Circuits) switching chips and network processors to process business hardw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/46H04L29/12
Inventor 赵敏
Owner ZTE CORP