Command Reference Guide

3Com Router 5000 Family and Router 6000 Family preference clns ● 153
Command Reference
preference clns
Purpose Use the preference clns command to set the preference of the CLNS routes
discovered by IS-IS protocol.
Use the undo preference clns command to revert the preference of the CLNS
routes discovered by IS-IS protocol to the default.
Syntax preference clns value
undo preference clns
Parameters value
Preference value. Valid values are 1 to 255.
If no value is specified, the default is 15.
Default The default preference value of CLNS routes discovered by IS-IS protocol is 15.
Example Set the preference value of CLNS routes discovered by IS-IS protocol to 35.
[3Com -isis] preference clns 35
View This command can be used in the following views:
■ IS-IS view
Description As a router can have multiple dynamic routing protocols employed, multiple routes
lead to the same destination may coexist on the router. You can assign a preference
value to each of these protocols to enable the router to select the route with the
highest preference when selecting from multiple routes discovered by protocols with
different preference values.