CML2.2.2 CSR1000V Subinterface Issue?

gmcdwllntwrk — Tue, 04 Jan 2022 17:41:04 GMT

In CML2.2.2, I have one csr1000v interface connected to one iosvl2 interface.

On the router side, I've configured subinterfaces, and on the switch side, I've configured a trunk interface plus corresponding SVIs. No ping. My question: Is there a known issue with subinterfaces on the csr1000v?

TIA.

Re: CML2.2.2 CSR1000V Subinterface Issue?

Harold Ritter — Tue, 04 Jan 2022 18:20:34 GMT

Hi @gmcdwllntwrk ,

This is due to the way the CSR1000v handles subinterfaces.

Please refer to the following post for more information on how to solve the issue.

https://community.cisco.com/t5/ipv6/ipv6-address-on-subinterfaces/td-p/4504574

Regards,

Re: CML2.2.2 CSR1000V Subinterface Issue?

gmcdwllntwrk — Wed, 05 Jan 2022 13:13:21 GMT

Thanks So Much Harold,

Trying to get that port-channel working, I was questioning my insanity for a while there.

I wanted to model a connection to a trunk interface on the far side, so I did it like this, and it works.

Note: It may be a bit unusual to have a routing native vlan on the switch, but To everything, There is a season, and for every config, there is a reason...

RTR1 (CSR1000V)	SW (IOSvL2)
! In lieu of a port-channel i/f	! On this side a trunk w/ native VL 10

bridge-domain 10	vlan 10
bridge-domain 11	vlan 11
bridge-domain 12	vlan 12

interface GigabitEthernet1	interface GigabitEthernet0/0
no shut	switchport trunk allowed vlan 10-12
service instance 10 ethernet	switchport trunk encapsulation dot1q
encapsulation untagged	switchport trunk native vlan 10
bridge-domain 10	switchport mode trunk
!	negotiation auto
service instance 11 ethernet	no shut
encapsulation dot1q 11	!
bridge-domain 11	interface Vlan10
!	ip address 10.10.10.2 255.255.255.0
service instance 12 ethernet	no shut
encapsulation dot1q 12	!
bridge-domain 12	interface Vlan11
!	ip address 11.11.11.2 255.255.255.0
!	no shut
interface BDI10	!
ip address 10.10.10.1 255.255.255.0	interface Vlan12
no shut	ip address 12.12.12.2 255.255.255.0
!	no shut
interface BDI11	!
ip address 11.11.11.1 255.255.255.0
encapsulation dot1Q 11
no shut
!
interface BDI12
ip address 12.12.12.1 255.255.255.0
encapsulation dot1Q 12
no shut
!

topic Re: CML2.2.2 CSR1000V Subinterface Issue? in DevNet Sandbox

CML2.2.2 CSR1000V Subinterface Issue?

Re: CML2.2.2 CSR1000V Subinterface Issue?

Re: CML2.2.2 CSR1000V Subinterface Issue?