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

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Name

isis hello-multiplier — interface

Synopsis

isis hello-multiplier value [{level-1 |level-2}]
no isis hello-multiplier

Configures

The holdtime value multiplier

Default

3

Description

For IS-IS , the holdtime is calculated by taking the hello interval and multiplying it by the hello multiplier. This command sets the hello multiplier to value. By changing the hello multiplier, you effectively change the holdtime. 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.

Example

The following commands configure IS-IS routing for the interface ethernet 1. The hello interval is set to 5 seconds (for level 1) and the multiplier is set to 5, yielding a holdtime of 25 seconds.

interface ethernet 1
  ip router isis
  isis hello-interval 5 level-1
  isis hello-multiplier 5 level-1

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