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Load sharing method of non-equivalent route and equipment

A load sharing, non-equivalent technology, applied in the field of communications, can solve the problems of low link utilization, waste of bandwidth, and no support for non-equivalent path load sharing, and achieve the effect of increasing network bandwidth and improving utilization.

Active Publication Date: 2013-09-04
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing unicast routing protocols do not support load sharing of unequal-cost paths, and only one of the links can be used to forward traffic at a time, resulting in low link utilization and wasting bandwidth

Method used

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  • Load sharing method of non-equivalent route and equipment
  • Load sharing method of non-equivalent route and equipment
  • Load sharing method of non-equivalent route and equipment

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0019] In the embodiment of the present invention, a load sharing method for non-equivalent routing is proposed, which is applied to any router in a network based on a unicast routing protocol. The path information of the cost path is sent to the FIB, and the traffic is forwarded proportionally through two non-equal-cost paths according to the metric value included in the path information, which can support the load sharing of non-equal-cost paths on the unicast routing protocol, improving Bandwidth utilization, increase network bandwidth.

[0020] see figure 2 , figure 2 It is a schematic flowchart of a non-equivalence routing load sharing method in a specific embodiment of the present invention. The specific steps are:

[0021] ...

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Abstract

The invention discloses a load sharing method of non-equivalent route. The method comprises the following steps: performing route calculation through an FRR (Fast Reroute) technology based on any router in a network of a unicast routing protocol; issuing calculated route information of two non-equivalent paths to an FIB (Forwarding Information Base); and enabling the traffic in proportion pass through two non-equivalent paths according to the metrics included in the path information. Based on the same inventive conception, the invention also provide equipment, which can support the load sharing of the non-equivalent route on the unicast routing protocol, so that the utilization rate of bandwidth is improved and the network bandwidth is increased.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a load sharing method and device for non-equivalent routing. Background technique [0002] Fast ReRoute (FRR) is a fast route convergence technology. The basic principle is that network devices that support routing protocols pre-calculate the backup path to a specific destination address, and use algorithms to ensure that forwarding from the backup path will not form a loop, and Send the backup path together with the primary path to the forwarding information base (ForwardingInformationBase, FIB). [0003] see figure 1 , figure 1 It is a schematic diagram of FRR networking. figure 1 Take router 2's route calculation as an example, calculate an optimal path and a suboptimal path, use the optimal path, that is, the path from Router 2 to Router 4 as the primary path, and use the suboptimal path from Router 2 to Router 3 and then to Router 4 The paths in betw...

Claims

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Application Information

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IPC IPC(8): H04L12/803H04L12/751H04L12/703H04L45/02H04L45/28
Inventor 章海锋
Owner NEW H3C TECH CO LTD
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