3Com Switch 7750 Configuration Guide Guide

324 CHAPTER 35: IS-IS CONFIGURATION
Configuring Interface
Cost
Configuring IS-IS Timer Configuring the Hello interval
In IS-IS, Hello packets are sent periodically through interfaces and routers maintain
neighbor relationship by sending and receiving Hello packets. You can configure
the Hello interval.
Configuring the CSNP packets sending interval
CSNP packets are the packets sent with the synchronous LSDB by the DIS on a
broadcast network. CSNP packets are broadcast periodically on a broadcast
network. You can configure the interval of sending CSNP packets.
Tabl e 248 Configure IS-IS route cost style
Operation Command Description
Enter system view system-view -
Enter IS-IS view isis [ tag ] Required
Configure a cost style
cost-style { narrow | wide |
wide-compatible | {
compatible |
narrow-compatible } [
relax-spf-limit ] }
Optional
By default, IS-IS receives/sends
only the packets with routing
cost expressed in the Narrow
mode.
Tabl e 249 Configure interface cost
Operation Command Description
Enter system view system-view -
Enter interface view
interface interface-type
interface-number
Required
Configure interface cost
isis cost value [ level-1 |
level-2 ]
Optional
The default IS-IS interface cost
is 10.
Tabl e 250 Configure the Hello interval
Operation Command Description
Enter system view system-view -
Enter interface view
interface interface-type
interface-number
Required
Define the Hello packet
sending interval, in seconds
isis timer hello seconds [
level-1 | level-2 ]
Optional
The default Hello packets
sending interval is 10 seconds.
Tabl e 251 Configure the CSNP packets sending interval
Operation Command Description
Enter system view system-view -
Enter interface view
interface interface-type
interface-number
Required