Method and device for preventing interrupt of traffics in aggregation link

A technology for link aggregation and traffic interruption, applied in the field of communication, can solve problems such as traffic loss, achieve good load sharing, ensure uninterrupted forwarding, and realize the effect of load sharing

CN101692652BActive Publication Date: 2011-11-16NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-11-16

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Abstract

The invention discloses a method for preventing the interrupt of traffics in an aggregation link, which comprises the following steps: negotiating a port state by home terminal equipment and opposite terminal equipment, keeping the second category of configuration information of a port in a selected state currently constant, and using the port in the selected state currently to forward traffics; after the port state negotiation is completed, forwarding the traffics according to the negotiated port state, and using the changed second category of configuration information to update the corresponding port. The method ensures that the aggregation group bandwidth is fully used, improves the link stability, and better realizes the load sharing.
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Description

technical field

[0001] The invention relates to the field of communication technologies, in particular to a method and device for preventing traffic interruption in aggregation links. Background technique

[0002] Aggregation link is to aggregate multiple physical Ethernet ports together to form a logical aggregation group. The upper layer entity using the aggregation link service regards multiple physical links in the same aggregation group as a logical link. Among them, the aggregation link can realize the load sharing between the member ports in the aggregation group to increase the bandwidth; at the same time, the member ports of the same aggregation group are dynamically backed up with each other, which improves the connection reliability.

[0003] Specifically, the aggregated link is implemented based on LACP (Link Aggregation Control Protocol, Link Aggregation Control Protocol), which is a protocol for realizing link dynamic aggregation and de-aggregation, and through...

Examples

Embodiment Construction

[0050] The basic idea of ​​the present invention is that when the second type configuration information of the port in the selected state changes, the second type configuration information is not immediately updated to the selected port, but the second type configuration information is temporarily saved, and Enter the transfer state, in the transfer state, because the second type configuration information of the selected port has not been updated, the selected port can be used to continue forwarding data. When the type 2 configuration information changes, the local device and the peer device will negotiate to obtain the port status again. After the acquisition is completed, they will exit the transit state. At this time, data can be forwarded according to the new port state. The type 2 configuration information of the port has changed. In the reacquired port state, the selected port will no longer be the selected port, and there is no need to use this port for data forwarding, ...