Patent ID: 7835376
Filing Date: 2010-11-16
Classification: H04L,Y02D

Abstract:
1. A communication device comprising: a plurality of line cards having a plurality of ports, the ports organized over a plurality of link aggregation groups; link aggregation management tables, one for each line card, each of said link aggregation management tables managing a relation between one of the link aggregation groups and the ports belonging to the one of the link aggregation groups; and, components corresponding to and within the line cards to make statuses of the link aggregation management tables consistent, wherein, only when a failure is generated in a port belonging to a link aggregation group and a link aggregation management table of a given line card to which the port belongs is updated, the component of the given line card notifies link aggregation management information to other line cards having ports belonging to the link aggregation group, to update the link aggregation management tables of the other line cards, such that when no failure is generated, the component does not notify the link aggregation management information to the other line cards having ports belong to the link aggregation group.