Administrator Guide
To return to the default values, use the no isis hello-interval [seconds] [level-1 |
level-2] command.
Parameters
seconds
Allows you to set the length of time between hello packet transmissions. The range
is from 1 to 65535. The default is 10.
level-1 (OPTIONAL) Select this value to configure the hello interval for Level 1. This value
is the default.
level-2 (OPTIONAL) Select this value to configure the hello interval for Level 2.
Defaults seconds = 10; level-1 (if not otherwise specified)
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
Usage
Information
Hello packets are held for a length of three times the value of the hello interval. To conserve bandwidth
and CPU usage, use a high hello interval seconds. 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.
C9000 Series
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
834 Intermediate System to Intermediate System (IS-IS)