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Method and device for forwarding uninterrupted data

A forwarding method and data technology, applied in the network field, can solve problems such as wasting bandwidth, and achieve the effect of avoiding the waste of bandwidth

Inactive Publication Date: 2013-04-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for uninterrupted data forwarding, so as to overcome the problems in the prior art that the forwarding of newly added data is interrupted when the main and standby control planes of the routing equipment are switched, and the data that has been forwarded has been terminated is re-forwarded, which wastes bandwidth.

Method used

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  • Method and device for forwarding uninterrupted data
  • Method and device for forwarding uninterrupted data
  • Method and device for forwarding uninterrupted data

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Embodiment 1

[0020] figure 2 is a flow chart of an uninterrupted data forwarding method provided by an embodiment of the present invention, image 3 and Figure 4 is provided by the embodiment of the present invention figure 2 The signaling diagram of the uninterrupted data forwarding method shown, as figure 2 As shown, the uninterrupted data forwarding methods include:

[0021] S201. When the active protocol control plane fails, the backup protocol control plane receives the PIM joining message sent by the downstream routing device.

[0022] In the embodiment of the present invention, when the main protocol control plane fails, as image 3 As shown in S301, the standby protocol control plane is switched to the new active protocol control plane. At this time, the standby protocol control plane does not refresh the data forwarding status of the forwarding control plane according to the original backup routing information, as shown in image 3 As shown in S302, the forwarding control...

Embodiment 2

[0036] Figure 5 is a block diagram of an uninterrupted data forwarding device provided by an embodiment of the present invention, such as Figure 5 As shown, the uninterrupted data forwarding device 500 includes an active protocol control plane 501, a standby protocol control plane 502, and a forwarding control plane 503. The active protocol control plane 501 is used to generate routing information and send the routing information to the forwarding control plane 503 , the forwarding control plane 503 forwards data according to the routing information received from the active protocol control plane 501 . When the active protocol control plane 501 fails, the standby protocol control plane 502 is switched to a new active protocol control plane, wherein the standby protocol control plane 502 includes:

[0037] The PIM join message receiving unit 504 is used to receive the PIM join message sent by the downstream routing device when the main protocol control plane 501 fails;

[0...

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Abstract

The invention relates to a method and a device for forwarding uninterrupted data. The method comprises the following steps that: when a primary protocol control plane fails, a standby protocol control plane receives PIM added message sent by downstream routing equipment, wherein the standby protocol control plane does not refresh the forwarding state of a forwarding control plane so that the forwarding control plane continuously keeps the primary data forwarding state; the standby protocol control plane generates routing update information according to the PIM added message received in the preset time and the backup routing information; the standby protocol control plane sends the routing update information to the forwarding control plane; and the standby protocol control plane controls the forwarding control plane to forward the data according to the routing update information. The method and the device of the embodiment of the invention can ensure that the forwarding of the newly increased data is not interrupted when the primary and standby control planes of the routing equipment are switched, and the data stopped in forwarding is not forwarded again, which avoids the waste of bandwidth.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a method and device for uninterrupted data forwarding. Background technique [0002] With the continuous improvement of the performance requirements of routing equipment, NSF (Non-Stop Forward, non-stop forwarding) technology and NSR (Non-Stop Routing, non-stop routing) technology are gradually applied to routing equipment to improve the performance of routing equipment. stability. In the prior art, a main system control plane and a backup system control plane are usually set in a routing device. When the main system control plane fails, it will automatically switch to the backup control plane. This switching process is not restricted by neighboring routing devices. detection, thereby avoiding the update of the routing list of neighboring routing devices, improving network reliability and efficiency. [0003] figure 1 Shown is the block diagram of routing equipment wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04L12/757H04L45/28H04L45/50
Inventor 梁艳荣段少雄苏海洋
Owner HUAWEI TECH CO LTD