Reference Guide

Usage
Information
Hello packets are held for a length of three times the value of the hello interval. Use
a high hello interval seconds to conserve bandwidth and CPU usage. Use a low
hello interval seconds for faster convergence (but uses more bandwidth and CPU
resources).
Related
Commands
isis hello-multiplier – specifies the number of IS-IS hello packets a neighbor must
miss before the router declares the adjacency as down.
isis hello-multiplier
Specify the number of IS-IS hello packets a neighbor must miss before the router declares the adjacency
down.
S5000
Syntax
isis hello-multiplier multiplier [level-1 | level-2]
To return to the default values, use the no isis hello-multiplier
[multiplier] [level-1 | level-2] command.
Parameters
multiplier Specifies an integer that sets the multiplier for the hello
holding time. Never configure a hello-multiplier lower than
the default (3). The range is 3 to 1000. The default is 3.
level-1 (OPTIONAL) Select this value to configure the hello multiplier
independently for Level 1 adjacencies. This value is the
default.
level-2 (OPTONAL) Select this value to configure the hello multiplier
independently for Level 2 adjacencies.
Defaults multiplier = 3; level-1 (if not otherwise specified)
Command
Modes
INTERFACE
Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
The holdtime (the product of the hello-multiplier multiplied by the hello-interval)
determines how long a neighbor waits for a hello packet before declaring the
neighbor is down so routes can be recalculated.
Related
Commands
isis hello-interval – specifies the length of time between hello packets.
Intermediate System to Intermediate System (IS-IS)
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