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Router and routing transmission method

A forwarding method and router technology, applied in the field of communication, can solve the problems of packet data routing and forwarding without specific research, and achieve the effect of solving routing problems

Inactive Publication Date: 2009-08-19
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ForCES working group has proposed a draft topology discovery between FEs, but there is no specific research on how packet data is routed and forwarded inside the router.

Method used

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  • Router and routing transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] see figure 2 , is a schematic structural diagram of a router according to an embodiment of the present invention.

[0056] Such as figure 2 As shown, a router can include a control unit 1 and multiple forwarding units, which are represented by forwarding unit 2 to forwarding unit N in the figure. The communication between the control unit 1 and multiple forwarding units is carried out through the ForCES protocol. Here , taking the router including one forwarding unit 1 and five forwarding units as an example, construct its topological relationship as image 3 As shown, the forwarding unit can be considered as a node in the network, wherein node 0, node 2, and node 4 are edge nodes, which have 2, 2, and 3 external interfaces respectively, and the remaining nodes Points are internal nodes.

[0057] combine figure 2 with image 3 , detailing the structure and functions of the router provided by the embodiment of the invention.

[0058] Wherein, the control unit 1 in...

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PUM

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Abstract

The present invention discloses a router forwarding method which comprises the following procedure: Obtain the global route forwarding messages of the grouping forwarding date and appoint the external interface of the grouping forwarding date according to the global route forwarding messages. Inquire the mapping relation of the external interface and the tag to obtain the tag of the grouping date. Package the grouping date by the tag and send the grouping date to the external interface of the grouping forwarding date according to the route forwarding messages. The present invention also discloses a router. Using the present invention the internal routing problem in the router can be solved, which can avoid the packet loss caused by the wrong router or the routing black hole. The present invention improves the robustness of the system and reduces the routing recovering time.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a router and a routing and forwarding method. Background technique [0002] With the development of Internet technology, the architecture of routers has also undergone tremendous changes. The hardware architecture of the new generation of core routers has developed from a centralized control mode to a distributed processing mode under a cluster structure. The control unit and forwarding unit routing and forwarding mode (ForCES, Forwarding and ControlElement Separation) aims to separate the control unit (CE, Control Element) and the forwarding unit (FE, Forwarding Element) in the router, and implement a unified design specification by defining a standard interface. It is an important direction of current distributed router research. [0003] see figure 1 , is a schematic structural diagram of a ForCES system in the prior art. [0004] Such as figure 1 As shown, CE and mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L29/10
Inventor 吴海博施勇涂伯颜
Owner HUAWEI TECH CO LTD