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3Com Switch 7750 Series
Command Reference Guide – Routing Protocol Chapter 4 Integrated IS-IS Configuration Commands
4-22
After an interface is added to a mesh group, it will only flood a received LSP to
interfaces not belonging to the same mesh group.
When you add an interface to a mesh group or block the interface, make sure to retain
some redundancy so that a link failure will not affect the normal LSP packet flooding.
Example
# Add the IS-IS-enabled Vlan-interface 20 to mesh-group 3.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com-Vlan-interface20] isis mesh-group 3
4.1.24 isis timer csnp
Syntax
isis timer csnp seconds [ level-1 | level-2 ]
undo isis timer csnp [ level-1 | level-2 ]
View
Interface view
Parameter
seconds: Interval in seconds of sending CSNP packets over broadcast network,
ranging from 1 to 65,535, with the default as 10 seconds.
level-1: Specifies the Level-1 time interval for sending CSNP packets.
level-2: Specifies the Level-2 time interval for sending CSNP packets.
If neither the level-1 keyword nor the level-2 keyword is specified, both the level-1
interval and the level-2 interval are set.
Description
Use the isis timer csnp command to specify the time interval for sending CSNP
packet over broadcast network.
Use the undo isis timer csnp command to resume the default value of 10 seconds.
This command only applies to the DIS router, which sends CSNP packets periodically.
Besides, DIS is separated to Level-1 and Level-2, and their time intervals should be
configured respectively.
Example
# Configure Level-2 CSNP packets to be sent every 15 seconds over Vlan-interface
10.
<3Com> system-view