VIRL - ISIS Interconnect between XRv and IOSv

Having trouble establishing an IS-IS adjacency between IOSv and XRv routers in VIRL. Able to see the ISIS neighbor from the IOSv box, but not from the XRv box. From the debugs it's as if the XRv box is not receiving the adjacency packets from the IOSv box. 

XRv = CR01

IOSv = DR01 

This is a simple point to point interconnect with a /31 between the two. 

DR01 Gi0/1  <--->  CR01 Gi0/0/0/1 

============

DR01 Config

============

!

interface GigabitEthernet0/1

description [CR01][Gi0/0/0/1] CORE ROUTER CONNECTION

mtu 9000

ip address 62.159.216.129 255.255.255.254

no ip redirects

no ip proxy-arp

ip router isis 1

duplex auto

speed auto

media-type rj45

isis circuit-type level-2-only

isis network point-to-point

isis hello-interval 1

isis csnp-interval 10

!

!

router isis 1

net 00.0621.5921.6104.00

is-type level-2-only

ispf level-2

metric-style wide

fast-flood 10

max-lsp-lifetime 65535

lsp-refresh-interval 65000

spf-interval 10 50 20

prc-interval 10 50 20

lsp-gen-interval 5 50 20

passive-interface Loopback0

! 

=========

CR01 Config

=========

!

interface GigabitEthernet0/0/0/1

description [Gi0/1] DR01

mtu 9000

ipv4 address 62.159.216.128 255.255.255.254

!

router isis 1

is-type level-2-only

net 00.0621.5921.6100.0

nsf cisco

log adjacency changes

lsp-gen-interval maximum-wait 5000 initial-wait 50 secondary-wait 20

lsp-refresh-interval 65000

max-lsp-lifetime 65535

address-family ipv4 unicast

  metric-style wide

  ispf level 2

  spf-interval maximum-wait 10000 initial-wait 50 secondary-wait 20

!

interface GigabitEthernet0/0/0/1

  circuit-type level-2-only

  point-to-point

  csnp-interval 10

  hello-padding disable

  hello-interval 1

  address-family ipv4 unicast

   mpls ldp sync level 2

  !

! 

===============

DR01#show isis neighbors 

Tag 1:

System Id       Type Interface     IP Address      State Holdtime Circuit Id

0621.5921.6100  L2   Gi0/1         62.159.216.128  INIT  2        00 

RP/0/0/CPU0:CR01#show isis neighbors

Tue Jun  7 18:02:37.401 UTC 

IS-IS 1 neighbors:

System Id      Interface        SNPA           State Holdtime Type IETF-NSF

DR02      Gi0/0/0/2        *PtoP*         Up    2        L2   Capable 

Total neighbor count: 1

 Note the missing DR01 from the neighbor table.

 

You have not set the nsap-address in your DR01 Config only CRO1 its there. Its like you need to do the same on both routers the same step.. 

Router(config)#router isis

Router(config-router)#net <nasp-address>..

I think its level 1. that is as there is only one area.. Can you try with level-1 (Not sure)

Router(config-router)#is-type level -1

now you may go to which all are the interfaces that you need to configure  and type like..

Router(config-router)#int lo0

Router(config-if)#ip router isis

Next step is for authentication got to both routers and give 

#router isis

#area-password <passwd>

If there is more than one are then need to give

#domain-password<passwd>