H3C S7500 Series Ethernet Switches Command Manual

Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 4 Integrated IS-IS Configuration Commands
4-23
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.
Examples
# Configure Level-2 CSNP packets to be sent every 15 seconds over VLAN-interface
10.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] interface Vlan-interface 10
[H3C-Vlan-interface10] isis timer csnp 15 level-2
4.1.25 isis timer hello
Syntax
isis timer hello seconds [ level-1 | level-2 ]
undo isis timer hello [ level-1 | level-2 ]
View
Interface view
Parameters
seconds: Interval for sending Hello packets, ranging from 3 to 255, in seconds, with the
default as 10 seconds.
level-1: Specifies the time interval for sending Level-1 Hello packets.
level-2: Specifies the time interval for sending Level-2 Hello 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 hello command to specify the time interval for sending the
corresponding Hello packets.
Use the undo isis timer hello command to resume the default value of 10 seconds.
The hello time interval must be configured respectively for the Level-1 and Level-2
packets on a broadcast network, because these two types of hello packets are sent
separately. A point-to-point link does not require this. The shorter the time interval is,
the more system resources will be occupied to send Hello packets, so you should
configure a proper time interval depending on the specific requirements.
Related commands: isis timer holding-multiplier.