Multi-link traffic reallocation method and device

A redistribution and multi-link technology, applied in the field of communication, can solve the problem that the message cannot be sent normally, achieve the effect of fast redistribution and ensure the normal sending

Inactive Publication Date: 2014-04-23
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The main purpose of the present invention is to provide a method and device for redistribution of multi-link traffic, so as to solve the problem that when a certain link in the multi-link fails in the prior art, the forwarding plane has to wait for the control plane to redistribute the multi-link traffic The problem that the message cannot be sent normally due to reallocation

Method used

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  • Multi-link traffic reallocation method and device
  • Multi-link traffic reallocation method and device

Examples

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Embodiment 1

[0045] Figure 5 A preferred structural block diagram of a device for multi-link traffic redistribution is shown, see Figure 5 , the device includes: a receiving unit 502, a determining unit 504, and a reconstructing unit 506 connected in sequence, wherein,

[0046] The receiving unit 502 receives link state change information from the interface management module of the forwarding plane when the link fails;

[0047] The determination unit 504 determines the position of the egress entry where the failed link of the forwarding plane routing entry is located according to the link state change information;

[0048] The reconstruction unit 506 generates a reconstructed egress entry at the position of the egress entry of the failed link, and sends a message according to the reconstructed egress entry.

[0049] Wherein, the interface management module of the forwarding plane detects the link state change information and sends the link state change information to the receiving unit...

Embodiment 2

[0058] Figure 7 A preferred flow chart showing a method for multi-link traffic redistribution, see Figure 7 , the method includes:

[0059] S702. When the link fails, the routing module of the forwarding plane receives link state change information from the interface management module of the forwarding plane;

[0060] S704, the routing module of the forwarding plane determines the location of the egress entry where the failed link of the forwarding plane routing entry is located according to the link state change information;

[0061] S706. The routing module on the forwarding plane generates a reconstructed egress entry at the position of the egress entry of the failed link, and sends a message according to the reconstructed egress entry.

[0062] In this preferred embodiment, when a link fails, the forwarding plane directly determines the location of the egress entry where the failed link of the forwarding plane routing entry is located, and generates a reconfigured egre...

Embodiment 3

[0089] This embodiment provides a specific example of multi-link traffic redistribution. In this embodiment, in order to achieve fast multi-link traffic redistribution, the following scheme is proposed: when a link fails, the forwarding plane does not wait for the control plane to go down The routing update message is sent, and the fast redistribution of multi-link traffic is independently completed by the forwarding plane. After convergence and calculation, the routing update message of the control plane is received, and the updating operation of the forwarding plane routing table entry is completed, so as to ensure the consistency and synchronization of the control plane and the forwarding plane.

[0090] Figure 9 Another flowchart of a method for redistribution of multi-link traffic is shown. When a multi-link route already exists in a switch and a link fails, the method includes:

[0091] S902. The forwarding plane receives link state change information;

[0092] In thi...

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Abstract

The invention provides a multi-link traffic reallocation method and a multi-link traffic reallocation device. The method comprises that: when a link fails, a routing module of a forwarding plane receives link state change information from an interface management module of the forwarding plane; the routing module of the forwarding plane determines the position of an export table entry with a failing link of a forwarding plane routing table entry according to the link state change information; and the routing module of the forwarding plane generates a reconstructed export table entry at the position of the export table entry with the failing link, and performs message transmission according to the reconstructed export table entry. By the method and the device, the problem in the prior art that a message cannot be transmitted normally because the forwarding plane is required to wait for the multi-link traffic reallocation of a control plane when a certain link in a plurality of links fails is solved, and the effects of directly and rapidly realizing the multi-link traffic reallocation by the forwarding plane and normally transmitting the message are further achieved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for redistribution of multi-link traffic. Background technique [0002] Multilink routing applies to IP (Internet Protocol) networks. Packet forwarding in the IP network requires a layer-3 switch. The switch selects a suitable path according to the destination address carried by the received IP message, and forwards the message to the next switch. The message reaches the destination host through hop-by-hop transfer. , this path is the route. [0003] Multi-link routing refers to a route that has multiple different links to the same destination address, that is, a route has multiple exits. With the continuous development of network traffic, users such as campuses and enterprises increasingly feel the constraints of a single link and begin to deploy multi-link network topologies. Single link has the following bottlenecks: [0004] Single link failure: Once the only...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/753
Inventor 谢鑫淼
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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