Concept Guide

Command Modes INTERFACE
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
The default values of this command are typically satisfactory transmission times for a specic interface on a
designated intermediate system. To maintain database synchronization, the designated routers send CSNPs.
You can congure Level 1 and Level 2 CSNP intervals independently.
isis hello-multiplier
Specify the number of IS-IS hello packets a neighbor must miss before the router declares the adjacency down.
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 Species an integer that sets the multiplier for the hello holding time. Never congure a
hello-multiplier lower than the default (3). The range is from 3 to 1000. The default is 3.
level-1 (OPTIONAL) Select this value to congure the hello multiplier independently for Level 1
adjacencies. This value is the default.
level-2 (OPTONAL) Select this value to congure the hello multiplier independently for Level 2
adjacencies.
Defaults multiplier = 3; level-1 (if not otherwise specied)
Command Modes INTERFACE
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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.
isis hello padding
Turn ON or OFF padding of hello PDUs from INTERFACE mode.
Syntax
isis hello padding
Intermediate System to Intermediate System (IS-IS) 789