Why reconnection during a SMB cluster failover takes more time than expected, from a RHEL client?

Issue

• CIFS shares, mounted on RHEL client, takes time to recover during an SMB cluster failover.
• The SMB servers are on a cluster, and a routine failover from the server side, causes this problem.
• During the affected period, accessing the share from the client, results in a hang.
• Typically, switching between windows nodes takes around a few seconds.
• However, similar reconnection on a RHEL client, during failover, takes more than a couple of minutes.