Use the NSF Summary page to change the administrative status of the NSF
feature and to view NSF information.
The OSPF feature uses NSF to enable the hardware to continue forwarding
IPv4 packets using OSPF routes while a backup unit takes over Management Unit
responsibility. To configure NSF on a stack that uses OSPF or OSPFv3, see "NSF
OSPF Summary (PCM6220 and PCM6348 Only)" on page 963 and "NSF OSPFv3
Configuration (PCM6220 and PCM6348 only)" on page 980.
To display the NSF Summary page, click System → Stack Management →
NSF Summary in the navigation panel.
Figure 8-10. NSF Summary
To cause the maser unit to failover to the standby unit, click Initiate Failover.
The failover results in a warm restart of the master unit in the stack. Initiating
a failover reloads the Management Unit, triggering the backup unit to take
Managing a Switch Stack