OcNOS-RON-6.3.1 : Layer 3 Guide : VRF Lite Configuration Guide : ISIS Configuration : Configuration IPv4 VRF
Configuration IPv4 VRF
R1
 
#con t
Enter configuration mode.
(config)#ip vrf vrf1
Create vrf1
(config-vrf)#exit
Exit VRF mode
(config)#router isis 1 vrf1
Associate the ISIS process to vrf1
(config-router)#net 49.0001.0000.0000.0001.00
Establish a network entity title for this instance, specifying the area address and the system ID.
(config-router)#is-type level-1
Configure instance 1 as level-1 routing
(config-router)#exit
Exit router mode
(config)#interface eth1
Enter interface mode
(config-if)#ip vrf forwarding vrf1
Associate the interface to vrf1
(config-if)#ip address 2.2.2.1/24
Configure the IP address 2.2.2.1 to eth1
(config-if)#ip router isis 1
Enable ISIS routing on an instance for area 49
(config-if)#isis circuit-type level-1
Configure interface as level-1
(config-if)#exit
Exit interface mode
(config)#exit
Exit config mode
R2
 
#con t
Enter configuration mode.
(config)#ip vrf vrf1
Create vrf1
(config-vrf)#exit
Exit VRF mode
(config)#router isis 1 vrf1
Associate the ISIS process to vrf1
(config-router)#net 49.0001.0000.0000.0002.00
Establish a network entity title for this instance, specifying the area address and the system ID.
(config-router)#is-type level-1
Configure instance 1 as level-1 routing
(config-router)#exit
Exit router mode
(config)#interface eth1
Enter interface mode
(config-if)#ip vrf forwarding vrf1
Associate the interface to vrf1
(config-if)#ip address 2.2.2.2/24
Configure the IP address 2.2.2.1 to eth1
(config-if)#ip router isis 1
Enable ISIS routing on an instance for area 49
(config-if)#isis circuit-type level-1
Configure interface as level-1
(config-if)#exit
Exit interface mode
(config)#exit
Exit config mode
Validation
R1
#show clns neighbors
Tag 1: VRF : vrf1
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth1 5254.00d1.5789 Up 9 L1 IS-IS
R2
#show clns neighbors
Tag 1: VRF : vrf1
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0001 eth1 5254.0024.4323 Up 26 L1 IS-IS
R1
#show ip isis route
Codes: C - connected, E - external, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, D - discard, e - external metric
 
Tag 1: VRF : vrf1
Destination Metric Next-Hop Interface Tag
C 2.2.2.0/24 10 -- eth1 0 0
R2
#show ip isis route
Codes: C - connected, E - external, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, D - discard, e - external metric
 
Tag 1: VRF : vrf1
Destination Metric Next-Hop Interface Tag
C 2.2.2.0/24 10 -- eth1 0 0
Last modified date: 07-13-2023