ispf enable

Use ispf enable to enable IS-IS incremental SPF (ISPF).

Use undo ispf enable to disable IS-IS ISPF.

Syntax

ispf enable

undo ispf enable

Default

IS-IS ISPF is enabled.

Views

IS-IS view

Predefined user roles

network-admin

Usage guidelines

When a network topology is changed, ISPF recomputes only the affected part of the SPT, instead of the entire SPT.

Examples

# Enable IS-IS ISPF.

<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] ispf enable