Enables nonstop routing (NSR) for Intermediate System-to-Intermediate System (IS-IS).
Enabled
IS-IS router configuration mode
IS-IS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only.
The no form of the command disables nonstop routing.
The following example enables NSR for IS-IS on a device.
device# configure terminal device(config)# router isis device(config-isis-router)# nonstop-routing
The following example disables NSR for IS-IS on a device.
device# configure terminal device(config)# router isis device(config-isis-router)# no nonstop-routing