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A communication device and method for generating fib table thereof

A communication device and table generation technology, which is applied in the field of network communication and can solve problems such as FIB table failure

Active Publication Date: 2020-05-12
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the ECMP resource is insufficient or the FEC resource corresponding to ECMP is insufficient, the FIB table pointing to multiple next hops will fail to be generated.

Method used

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  • A communication device and method for generating fib table thereof
  • A communication device and method for generating fib table thereof
  • A communication device and method for generating fib table thereof

Examples

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Embodiment Construction

[0019] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0020] See figure 1 , is a schematic flowchart of a method for generating a FIB table provided by an embodiment of the present invention, as shown in figure 1 As shown, the method may include the following steps:

[0021] It should be noted that the execution subject of steps 101 to 102 may be the central processing unit of a network communication device such as a switch or a router. For the convenience of description, the execution subject of steps 101 to 104 is the central processing unit of a router as an example. illustra...

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PUM

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Abstract

The present invention provides a communication device and a method for generating a FIB table thereof. The method includes: when a target FIB table needs to be generated and the target FIB table points to multiple next hops, judging whether there are available ECMP resources and available ECMP Corresponding FEC resources; if there are available ECMP resources and available ECMP-corresponding FEC resources, then generate the target FIB table and synchronize to the forwarding chip; if there are no available ECMP resources or / and available ECMP-corresponding FEC resources , select one or more target next hops from the multiple next hops, generate FIB tables pointing to each target next hop and synchronize them to the forwarding chip. Applying the embodiment of the present invention can improve the probability of successfully generating the FIB table.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a communication device and a method for generating a FIB table thereof. Background technique [0002] The FIB (Forwarding Information Base, forwarding information base) table is used to guide IP (Internet Protocol, Internet Protocol) message forwarding. The router selects a route through the routing table, and sends the preferred route to the FIB table, and then the router can guide the forwarding of IP packets through the FIB table. Wherein, each forwarding entry in the FIB table indicates the next-hop IP address and the outgoing interface of the message to reach a certain subnet or a certain host. [0003] The FIB table usually points to a single next hop, but when there are multiple entries with the same address and the same cost, and the multiple routes have the same priority, the multiple routes will be used as ECMP (Equal-Cost Multipath, etc. valence path) t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/761H04L45/74H04L45/16
CPCH04L45/16H04L45/74
Inventor 李华舟
Owner XINHUASAN INFORMATION TECH CO LTD
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