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Route sending-down method, message forwarding method, forwarding engine and message forwarding equipment

A forwarding engine and message forwarding technology, applied in the field of network communication, can solve the problem of not fully combining the advantages of various forwarding engines.

Active Publication Date: 2009-11-18
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that using ASIC, NP or general-purpose processors to implement forwarding engines has its own advantages and disadvantages, and cannot fully combine the advantages of various forwarding engines

Method used

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  • Route sending-down method, message forwarding method, forwarding engine and message forwarding equipment
  • Route sending-down method, message forwarding method, forwarding engine and message forwarding equipment
  • Route sending-down method, message forwarding method, forwarding engine and message forwarding equipment

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Embodiment Construction

[0081] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0082] In order to combine the forwarding advantages of different forwarding engines, the present invention provides a forwarding architecture with multiple types of forwarding engines. figure 1 A schematic structural diagram of the forwarding architecture with multiple types of forwarding engines is shown. like figure 1 As shown, the forwarding architecture includes a routing engine and two types of forwarding engines: a first forwarding engine and a second forwarding engine, and these two forwarding engines cooperate to forward packets and process services.

[0083] Wherein, the routing engine learns routes through routing protocols or other methods, and synchronizes the learned routes to the first forwarding engine and the second forwarding engine in the form of routing table entries.

[0084] The first forwarding engine provides forwarding services f...

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PUM

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Abstract

The invention discloses a route sending-down method which is applied to forwarding equipment comprising a first forwarding engine and a second forwarding engine; the forwarding table capacity of the first forwarding engine is less than that of the second forwarding engine. The route sending-down method comprises the following steps: the interface type supported by the first forwarding engine and the second forwarding engine is called the first type of interface, and the interface type supported only by the second forwarding engine is called the second type of interface; the route, the next hop of which is the first type of interface, is called the first type of route and the route, the next hop of which is the second type of interface, is called the second type of route; the first forwarding engine receives the route sent by a routing engine and sends down the received first type of route not conflicting the second type of route to own forwarding table. The invention also discloses a message forwarding method, a forwarding engine and a message forwarding equipment. By using the invention, the space of the forwarding table of the forwarding engine can be fully utilized while combining the forwarding advantages of various forwarding engines.

Description

technical field [0001] The present invention relates to routing technology in the field of network communication, in particular to a method for issuing routes applied to devices including at least two types of forwarding engines, a method for forwarding messages applied to devices including at least two types of forwarding engines, and a limited forwarding table capacity forwarding engine and the packet forwarding device containing the forwarding engine. Background technique [0002] With the rapid development of the communication industry, users' requirements for network bandwidth and network delay are also increasing. In order to meet this requirement, the forwarding speed of packet forwarding devices such as routers and switches as the core of network routing and switching needs to be greatly increased. [0003] In order to realize high-speed forwarding, at present, application-specific integrated circuits (ASIC, Application Specific Integrated Circuit) or network proces...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L45/74
Inventor 刘玉印李军军赵海龙
Owner NEW H3C TECH CO LTD