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A link switching method and device

A link switching and link technology, applied in the field of communication, can solve problems such as low forwarding efficiency, and achieve the effect of improving network forwarding efficiency

Active Publication Date: 2019-01-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a link switching method and device to solve the problem of low forwarding efficiency caused by non-optimal forwarding paths after link switching in the prior art

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  • A link switching method and device

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Embodiment Construction

[0042] Please refer to figure 1 , is a schematic diagram of traffic forwarding in the prior art. In this dual-homing network, a bypass link is connected between PE103 and PE104, and CE (Custom Edge, user edge network equipment) 105 is dual-homed to PE103 and PE104. Assuming that PE103 is the master PE, when the network is normal, the forwarding path of the traffic sent from CE101 to CE105 is: CE101->PE102->PE103->CE105. However, when the link between PE102 and PE103 fails, the traffic will be switched to the bypass link between PE103 and PE104, and then forwarded by the hierarchical link on PE104. At this time, the forwarding path of the traffic is: CE101->PE102->PE104->PE103->CE105, such as figure 1 indicated by the arrow in . It can be seen that the traffic forwarding from PE104 to CE105 is obviously not the optimal path, so the traditional forwarding method will lead to low forwarding efficiency.

[0043] In order to solve the problems existing in the prior art, the pre...

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Abstract

The present invention provides a link switching method and device. The method is applied to a first PE located between a source end aggregation port and a target end aggregation port, and the link connecting the first PE to the source end aggregation port is the main link, The link connecting the aggregation port at the destination end is the first link, and a second PE is also included between the aggregation port at the source end and the aggregation port at the destination end. The link of the aggregated port is the second link, and the method includes: when the primary link corresponding to the first PE fails, setting the state of the member port of the aggregated port of the target port corresponding to the first link to a non-selected state; A link failure message is sent to the second PE, so that the second PE sets the state of the member port corresponding to the second link of the aggregate port of the target port to the selected state. Therefore, the traffic on the standby PE does not need to be forwarded through the active PE, thereby improving the network forwarding efficiency.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a link switching method and device. Background technique [0002] At present, IPRAN (IP Radio Access Network, IP Radio Access Network) networking has been widely used in the next generation mobile networks of domestic mainstream operators. When the primary link in the networking fails, the traffic on the primary link is generally switched to the standby link for forwarding. However, in the currently used dual-homing IPRAN network, since the active and standby PEs (ProviderEdge, operator border network equipment) are usually aggregated, when the traffic is switched to the standby link, it still needs to pass through the active link associated with the aggregated port. Only PEs can be forwarded. As a result, the forwarding path of the traffic on the standby PE is not the optimal path, thus reducing the forwarding efficiency. Contents of the invention [0003] In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/711H04L12/703H04L45/247H04L45/28
CPCH04L45/22H04L45/28
Inventor 黄李伟王伟
Owner NEW H3C TECH CO LTD