How to specify an individual interface as passive on Nexus IPv6 ospfv3

[tmikelson]

NXOS: version 7.0(3)I6(1)
cisco Nexus9000 93180YC-EX chassis

So I have only found the "passive-interface default" command as shown below.

router ospfv3 XXX
router-id XXX.XXX.XXX.XXX
log-adjacency-changes
address-family ipv6 unicast
area XXX.XXX.XXX.XXX range XXXXXXX/52
passive-interface default

1) do I use "passive-interface default" and then exclude a specific interface from this global command so ospfv3 runs on this specific interface?

AND/OR

2) Not use the global "passive-interface default" command and use an unknown (to me) passive-interface command on a specific interface?

P.S.
My google-fu was not up to this task. Is there a way to look up commands for various hardwares/versions on cisco.com?

[Jens Albrecht · Accepted solution]

Hello @tmikelson,

the command to exclude or include specific interfaces in ospfv3 on the nexus switches is not found under the routing process but at the interface level.

Whether you exclude specific interfaces or set "passive-interface default" and then include the interfaces that you want to run ospfv3 on is a matter of personal preference. Technically the result is the same so you can go either way:

! Include selected interfaces only:
!
router ospfv3 <process-id>
  passive-interface default
!
interface <type> <num>
  no ospfv3 passive-interface
!
! or exclude selected interfaces:
!
interface <type> <num>
  ospfv3 passive-interface

In general you should check the configuration guides based on the platform and software version you are running.

So in case of configuring OSPFv3 on Nexus 9000 running NXOS version 7.x you can take a look here:

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/unicast/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_Unicast_Routing_Configuration_Guide_7x/m-configuring-ospfv3-7x.html#id_91585

These configuration guides are also a great help to get used to common best practices.

HTH!