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Usage
Information
The default values of this command are typically satisfactory transmission times for a specific interface
on a designated intermediate system. To maintain database synchronization, the designated routers send
CSNPs.
You can configure 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 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 from 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
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
To return to the default, use the no isis hello padding command.
Defaults Padding of hello PDUs is enabled (ON).
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
Hello PDUs are “padded” only when both the global and interface padding options are ON. Turning either
one OFF disables padding for the corresponding interface.
Related
Commands
hello padding — turns ON or OFF padding for LAN and point-to-point hello PDUs.
698 Intermediate System to Intermediate System (IS-IS)