# nsf ietf

#### Syntax

[ no ] nsf ietf

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Enables the IS-IS graceful restart mechanism on the router as defined in RFC 3847—Restart Signaling for Intermediate System to Intermediate System (IS-IS) (July 2004). Graceful restart, which is also known as nonstop forwarding (NSF), allows an IS-IS router to restart with minimal routing disruption to the network. The no version restores the default state (disabled) for IS-IS graceful restart on the router.

#### Mode

Router Configuration