Method and device for rapidly switching RIP (routing information protocol) routings

A fast switching and routing technology, applied in the field of communication, can solve the problem of long traffic loss time, and achieve the effect of reducing traffic loss time, fast switching, and avoiding re-learning time

Inactive Publication Date: 2013-12-04
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among the above times, the RIP route re-learning time is the bottleneck of the RIP route switching time, that is, the RIP route switching time depends on the length of the RIP route re-learning time, and each network device usually periodically (the default time is 30 seconds) publishes RIP routing, so RIP route relearning time is usually 30 seconds, resulting in RIP route switching time will be greater than 30 seconds, and cause traffic loss for a long time

Method used

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  • Method and device for rapidly switching RIP (routing information protocol) routings
  • Method and device for rapidly switching RIP (routing information protocol) routings
  • Method and device for rapidly switching RIP (routing information protocol) routings

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Embodiment Construction

[0037] Aiming at the problems existing in the prior art, an embodiment of the present invention provides a method for fast switching of RIP routing, which is applied to a RIP network including multiple network devices, and the multiple network devices include at least a route receiving device and a Multiple route publishing devices, the multiple route publishing devices are used to publish the RIP route of the same destination address to the route receiving device. by figure 1 It is a schematic diagram of the application scenario of the embodiment of the present invention, network device A is a route receiving device, network device B and network device C are route publishing devices, and network device B and network device C are used to issue the same destination address to network device A (10.1 .1.0 / 24) for RIP routing. Such as figure 2 As shown, the method includes the following steps:

[0038] Step 201, the route receiving device maintains in the RIP routing table the...

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Abstract

The invention discloses a method and a device for rapidly switching RIP (routing information protocol) routings. The method includes the steps: maintaining all RIP routings corresponding to the same destination address in an RIP routing table, selecting one optimal RIP routing from the RIP routings corresponding to the destination address and issuing the optimal RIP routing to a hardware forwarding table by a routing receiving device; inquiring the RIP routing issued by a routing issuing device from the RIP routing table when determining that a link corresponding to the routing issuing device is faulted by the routing receiving device; deleting the RIP routing from the RIP routing table if the RIP routing is not the optimal RIP routing; deleting the RIP routing from the RIP routing table, reselecting one optimal RIP routing from the other RIP routings corresponding to the RIP routing and issuing the reselected optimal RIP routing into the hardware forwarding table if the RIP routing is the optimal RIP routing. RIP routing switching time can be shortened, and flow loss time is further shortened.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for fast switching of RIP routing. Background technique [0002] RIP (Routing Information Protocol, Routing Information Protocol) is a protocol based on the distance vector algorithm, and uses the hop count to measure the distance to the destination address, which is the metric value. Among them, each network device running RIP manages a RIP routing table, which includes RIP routes to all reachable destination addresses, and the RIP routes include the following information: destination address, next-hop address (adjacent network interface address of the device), outbound interface (the outbound interface for forwarding packets on the network device), metric value (the cost of reaching the destination address), routing time (the time elapsed since the last update of the RIP route, and the RIP route When it is updated, the routing time is reset to 0), rou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/703H04L12/721H04L12/741H04L45/28H04L45/74
Inventor 王克峰王剑鸣顾斌李蒙
Owner NEW H3C TECH CO LTD
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