IS-IS Configuration on Cisco IOS XR (Basic)

Configuration on PE

hostname PE
interface Loopback0
ipv4 address 10.150.1.1 255.255.255.255
!
interface MgmtEth0/0/CPU0/0
shutdown
!
interface GigabitEthernet0/0/0/0
ipv4 address 192.168.1.1 255.255.255.0
!
interface GigabitEthernet0/0/0/1
!
interface GigabitEthernet0/0/0/2
shutdown
!
router isis 100
is-type level-1
net 01.0101.5001.7194.00
address-family ipv4 unicast
!
interface Loopback0
address-family ipv4 unicast
!
!
interface GigabitEthernet0/0/0/0
address-family ipv4 unicast
!
!
!
end

Configuration on P

hostname P
interface Loopback0
ipv4 address 10.150.1.2 255.255.255.255
!
interface MgmtEth0/0/CPU0/0
shutdown
!
interface GigabitEthernet0/0/0/0
ipv4 address 192.168.1.2 255.255.255.0
!
interface GigabitEthernet0/0/0/1
ipv4 address 192.168.2.1 255.255.255.0
!
interface GigabitEthernet0/0/0/2
shutdown
!
router isis 100
is-type level-1
net 01.0101.5001.7195.00
address-family ipv4 unicast
!
interface Loopback0
address-family ipv4 unicast
!
!
interface GigabitEthernet0/0/0/0
address-family ipv4 unicast
!
!
!
end

Command to check result

RP/0/0/CPU0:P#show isis neighbors
Wed Mar 2 22:35:47.871 UTC

IS-IS 100 neighbors:
System Id Interface SNPA State Holdtime Type IETF-NSF
PE Gi0/0/0/0 000c.29eb.6e25 Up 9 L1 Capable

Total neighbor count: 1