Managing a Switch Stack 153
NSF Summary
Use the NSF Summary page to change the administrative status of the NSF 
feature and to view NSF information. 
To display the NSF Summary page, click System → Stack Management → 
NSF Summary in the navigation panel. 
Figure 8-9. 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 
over. 
NOTE: 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" on page 951 and "NSF OSPFv3 Configuration" on page 968.