R2511-HP MSR Router Series Layer 3 - IP Routing Command Reference(V5)

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Examples
# Configure Level-2 CSNP packets to be sent every 15 seconds over Serial 2/0.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] isis timer csnp 15 level-2
isis timer hello
NOTE:
This command is not supported in loopback interface view.
Use isis timer hello to specify the interval for sending hello packets.
Use undo isis timer hello to restore the default.
Syntax
isis timer hello seconds [ level-1 | level-2 ]
undo isis timer hello [ seconds ] [ level-1 | level-2 ]
Default
The default hello interval is 10 seconds.
Views
Interface view
Default command level
2: System level
Parameters
seconds: Specifies the interval in seconds for sending hello packets, in the range of 3 to 255.
level-1: Specifies the interval for sending Level-1 hello packets.
level-2: Specifies the interval for sending Level-2 hello packets.
Usage guidelines
Level-1 and Level-2 hello packets are sent independently on a broadcast network, so you need to specify
an interval for each of the two levels. On a P2P link, Level-1 and Level-2 packets are both sent in P2P hello
packets, and you need not specify an interval for each of the two levels.
You can configure keywords level-1 and level-2 only on broadcast interfaces. Before you do that, enable
IS-IS on the interface.
As the shorter the interval is, the more system resources are occupied, you should configure a proper
interval as needed.
If no level is specified, the hello interval applies to both Level-1 and Level-2.
Examples
# Configure Level-2 hello packets to be sent every 20 seconds over Serial 2/0.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] isis timer hello 20 level-2