Hi,
You can also configure the ISO address in ae2 interface at both end. Below is the sample config:
set routing-instances VR2 instance-type virtual-router
set routing-instances VR2 interface ge-0/0/0.0
set routing-instances VR2 protocols isis interface ge-0/0/0.0
set interfaces ge-0/0/0 unit 0 family iso address 49.0001.1950.0080.0004.00
set routing-instances VR1 instance-type virtual-router
set routing-instances VR1 interface ge-0/0/0.0
set routing-instances VR1 protocols isis interface ge-0/0/0.0
set interfaces ge-0/0/0 unit 0 family iso address 49.0001.1950.0080.0005.00
show isis adjacency instance VR2
Interface System L State Hold (secs) SNPA
ge-0/0/0.0 R1_re0-VR1 1 Up 8 56:68:a3:17:57:32
ge-0/0/0.0 R1_re0-VR1 2 Up 7 56:68:a3:17:57:32
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