Method and device for preventing interrupt of traffics in aggregation link

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.

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...

AI Technical Summary

Problems solved by technology

[0010] When the type 2 configuration (for example, VLAN configuration) of the eth1 / 1 port of device A changes, device A senses that the aggregation member port configuration has changed, and will recalculate the state of the aggregation group member, but before the new state calculation is completed, the MAC Neither the table entry nor the aggregation table entry will change, so when traffic is forwarded, when querying the MAC table entry and aggregation table entry, the previously selected ports are still selected, that is, eth1 / 1, eht1 / 2, and eth1 / 3 are all selected , the traffic is forwarded after hashing from these three ports, but in fact the configuration of the eth1 / 1 port has changed, and the port is no longer selected, resulting in traffic loss when the traffic is forwarded from the eth1 / 1 port

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