A method to realize link occupying and link port

A link and port technology, applied in the field of link preemption, can solve the problem of multiple packet loss of user data packets, and achieve the effect of avoiding multiple packet loss

Inactive Publication Date: 2008-07-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the link state becomes DOWN again, the link will definitely not be selected, causing itself to be preempted and enter the UNSELECTED state, causing the LACP state of this link to oscillate between the SELECTED and UNSELECTED states. The oscillation of this state will cause Multiple packet loss of user data packets between trunk ports

Method used

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  • A method to realize link occupying and link port
  • A method to realize link occupying and link port

Examples

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Embodiment Construction

[0019] Embodiments of the present invention provide a method and a link port for realizing link preemption. By configuring the corresponding delay preemption time for the link with high priority in the link port, the loss of user data packets is avoided during the link preemption process.

[0020] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] At first please refer to Fig. 1, Fig. 1 has shown the structural representation of the link port in the implementation of the present invention, and this link port comprises detection unit 10, delay preemption unit 11, timer unit 12 and preemption unit 13, wherein: detection Unit 10 is used to detect the link status at both ends of the link port. When it is detected that the link with high priority will preempt the link with low priority, that is, when it is detected that the link with high priority in the trunk port recovers from failure or When a...

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Abstract

The embodiment of the invention discloses a method for realizing link preemption, comprising the following steps: the situation of the link on a polymeric link port is detected; when the link with a high priority is detected to preempt the link with a lower priority on the same polymeric link port, the link with a high priority is led to be in the state of delaying preemption; when the state that the link with a high priority satisfies the link with a time delay is stable, the link with a high priority in the state of delaying preemption is positioned on the preempted link to preempt the link with a lower priority. The embodiment of the invention also discloses a link port, and through the method for realizing link preemption and the link port provided by the embodiment of the invention, the invention can avoid the loss of the user data when preempting the link by configuring the corresponding delaying preemption time for the link with a high priority in the link port.

Description

technical field [0001] The invention relates to the application field of network communication, in particular to a method and device for realizing link preemption. Background technique [0002] TRUNK is the meaning of port aggregation, which is to combine two or more physical ports into a logical path through configuration software settings to increase the bandwidth between the switch and the network node, and the bandwidth belonging to these ports Combined to provide the port with an exclusive high bandwidth that is several times that of independent ports. TRUNK is an encapsulation technology. It is a point-to-point link. Both ends of the link can be switches, switches and routers, or hosts and switches or routers. Based on the port aggregation TRUNK function, it allows simultaneous transmission between switches and switches, switches and routers, hosts and switches or routers through two or more ports in parallel to provide higher bandwidth and greater throughput, greatly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L47/41
Inventor 杨臻
Owner HUAWEI TECH CO LTD
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