Patent ID: 9749264
Date: 2017-08-29
CPC Classifications: H04L

Claim:
1. A communication system comprising: a plurality of port switches including first and second port switches; a plurality of fabric switches building a communication path between the plurality of port switches; and a user switch connected to the first and second port switches via different communication lines from each other for setting link aggregation for ports serving as connection sources of the communication lines, wherein each of the plurality of port switches is directly connected to each of the plurality of fabric switches via different communication lines from each other, respectively, wherein the first and second port switches are set in a same domain group, the first and second port switches each comprise at least one redundancy port, and a redundancy port of the first port switch is connected to a redundancy port of the second port switch via a common communication line, wherein each of the plurality of fabric switches is configured to: wherein each of the plurality of port switches is configured to: