Problem
You want to configure an interface to support IS-IS.
Solution
Configure the ISO protocol family on the interface running IS-IS:
[edit] aviva@RouterA# set interfaces fe-0/0/0 unit 0 family iso
Discussion
IS-IS is an OSI protocol, so you need to create an OSI family on the interface for IS-IS to work. You also need to configure one or more addresses for the loopback interface, which IS-IS uses for its interface addresses (see Recipe 7.3). Here's how to check the configuration:
aviva@router1# show interfaces fe-0/0/0.0 brief Logical interface fe-0/0/0.0 Flags: SNMP-Traps Encapsulation: ENET2 inet 192.168.220.1/30 iso
See Also
Recipes 7.3, 7.12, and 11.1
Router Configuration and File Management
Basic Router Security and Access Control
IPSec
SNMP
Logging
NTP
Router Interfaces
IP Routing
Routing Policy and Firewall Filters
RIP
IS-IS
OSPF
BGP
MPLS
VPNs
IP Multicast