Perform the following procedure if you increase or decrease the number of links that connect the chassis to the fabric interconnect. Acknowledging the chassis
ensures that Cisco UCS Manager is aware of the change in the number of links and that traffics flows along all available links.
After you enable or disable a port on a fabric interconnect, wait for at least 1 minute before you reacknowledge the chassis. If you reacknowledge the chassis too soon, the pinning of server traffic from the chassis may not be updated with the changes to the port that you enabled or disabled.
The following example acknowledges chassis 2 and commits the transaction:
UCS-A# acknowledge chassis 2
UCS-A* # commit-buffer