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Method and system for managing routing table

A technology of table entry management and management method, applied in the field of routing table entry management, can solve problems such as vertical management of table entries and inconsistency of forwarding table entries, and achieve the effect of saving memory and computing resource consumption and reducing the number of

Inactive Publication Date: 2009-11-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The embodiment of the present invention provides a way to manage entries on the NP side in a transactional manner, establish transactions for each type of business, and solve the problem of inconsistent forwarding entries in the NP and CP and currently only vertical management of entries

Method used

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  • Method and system for managing routing table
  • Method and system for managing routing table
  • Method and system for managing routing table

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Embodiment Construction

[0040] In the present invention, by extending the structure of the control frame, the corresponding mark is set when the CP encapsulates the control frame, and the corresponding mark is specially processed when the NP executes the command, and all the routing table items required by a certain business are packaged as a transaction to realize the nature of the transaction. That is, all commands in the transaction are either executed successfully, or none are executed.

[0041] The embodiment of the present invention provides a management method for routing entries, such as image 3 shown, including the following steps:

[0042] In step s301, the network processor receives the extended control frame in transaction unit sent by the control processor.

[0043] Existing control frame structure, such as Figure 4 As shown, it includes control frame header, control frame command 1, ..., control frame command n, and control frame tail. The extended control frame is as follows Fig...

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Abstract

The invention discloses a routing table item management method, comprising the steps of: network processor receives extended control frame sent by control processor and using event as unit; the network processor executes routing table item carrying commands in the extended control frame; when the execution of any command in an event fails, does not execute all routing table item carrying commands in the event; the invention discloses a routing table item management system and network processor. The invention solves the problem that control layer and transmit layer are inconsistent caused by wrong routing table item issuing. In addition, the invention changes routing table item addition from vertical to horizontal events, solving the time difference problem and reducing number of control frames and saving internal memory and reducing computing resource consumption.

Description

technical field [0001] The present invention relates to the technical field of routing table item management, in particular to a routing table item management method and system. Background technique [0002] The fifth-generation router uses NP (Network Processor, network processor) to forward the work at the core, but because the forwarding depends on various routing table items, such as FIB (Forwarding Information Table forwarding information table), ARP (Address Resolution Protocol, address resolution Protocol) tables, etc., so in addition to processing the forwarding unit 13 in the network processor, it also includes a control unit 11 and a management unit 12. The control unit 11 controls the forwarding table items, and the management unit 12 performs operations such as managing the processor, such as figure 1 shown. [0003] but figure 1 The control unit in the system does not run the routing protocol, nor does it generate routing table entries. The work in this aspect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/56
Inventor 韩冰
Owner HUAWEI TECH CO LTD