Redundancy involves the duplication of devices, services, or connections, so that in the event of a failure, the redundant duplicate can take over for the one that failed.
Since computer networks are critical for business operations, it is vital to ensure that the network continues to function even if a piece of equipment fails. Even the most reliable equipment might fail on occasion, but a redundant component can ensure that the network continues to operate despite such failure.
To achieve port redundancy, you can define a redundancy relationship between any two ports in a switch. One port is defined as the primary port and the other as the secondary port. If the primary port fails, the secondary port takes over.
Note:
When port redundancy is activated on Branch Gateway, manually disabling the primary port will also disable the secondary port. To prevent the disabling of the secondary port, you must disable port redundancy before disabling the primary port.
