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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

isis hello-interval — interface

Synopsis

isis hello-interval seconds [{level-1 | level-2}]
no isis hello-interval

Configures

IS-IS hello interval for an interface

Default

10 seconds

Description

This command sets the hello interval for IS-IS routing to seconds. By default, the hello interval is the advertised holdtime multiplied by the hello multiplier, which has a default of 3. The optional level-1 and level-2 keywords allow you to apply this command to an individual level; otherwise the interval is applied to both levels.

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