3Com Router 3031, Command Reference Manual

Page: 617 / 838

Integrated IS-IS Configuration Commands 617
this time 3 times of hello interval. That is to say, if the router does not receive hello
message from its neighbor 3 times, it would determine that the neighbor is dead.
User can adjust this parameter according to the network.
For the related command, see isis timer hello.
Example
Set the dead interval of Level-2 to 60 seconds on Interface serial1/0/0.
[3Com] interface serial1/0/0
[3Com-Serial1/0/0] isis timer dead 20 level-2
isis timer hello
Syntax
isis timer hello seconds [ level-1 | level-2 ]
undo isis timer hello [ level-1 | level-2 ]
View
Interface view
Parameter
■
seconds: Specifies the Hello message interval, ranging from 3 to 255 and
measured in seconds. The default value is 10 seconds.
■
level-1: Specifies the Level-1 Hello interval.
■
level-2: Specifies the Level-2 Hello interval.
■
If neither Level-1 nor Level-2 is specified, it is defaulted to Level-1-2 Hello
message interval, that is, both Level-1 and Level-2 take effect.
Description
Using the isis timer hello command, you can configure the interval of sending
hello message of corresponding level. Using the undo isis timer hello command,
you can restore the default value, that is, 10 seconds.
On a broadcast link, Level-1 and Level-2 hello messages will be sent respectively
and their intervals should also be set respectively. Such settings are unnecessary on
point-to-point links. The shorter the sending interval is, the more system resources
are occupied to send hello messages. Therefore, the interval should be set
according to actual conditions.
For the related command, see isis timer dead.
Example
Set the Hello message of Level-1 to be transmitted every 20 seconds on Interface
serial1/0/0.
[3Com] interface serial1/0/0
[3Com-Serial1/0/0] isis timer hello 20 level-1
isis timer lsp Syntax
isis timer lsp time
undo isis timer lsp