03-02-2016 10:39 PM - edited 03-05-2019 03:29 AM
Does ASR1002 supports dot1q subinterface mapping to each vrf in a Port-Channel? and with BFD enabled?
For example
ASR1002#conf t
interface Port-channel1
no negotiation auto
no bfd echo
lacp min-bundle 2
!
!interface GigabitEthernet0/0/1
no ip address
no negotiation auto
channel-group 1 mode active
!
interface GigabitEthernet0/0/2
no ip address
no negotiation auto
channel-group 1 mode active
!
interface Port-channel1.101
encapsulation dot1Q 101
ip vrf forwarding first_vrf
ip address 10.10.10.1 255.255.255.252
bfd interval 250 min_rx 250 multiplier 3
no bfd echo
service-policy input COS-IN
!
interface Port-channel1.201
encapsulation dot1Q 201
ip vrf forwarding second_vrf
ip address 10.10.10.5 255.255.255.252
bfd interval 250 min_rx 250 multiplier 3
no bfd echo
service-policy input COS-IN
!
03-02-2016 10:45 PM
Hmm, BFD on the port-channel itself. I don't think that makes sense. Surely you would only have it on the physical members, GigabitEthernet0/0/1 and GigabitEthernet0/0/2. BFD is trying to detect a physical failure.
03-02-2016 11:15 PM
Thanks Philip, How about port-channel subinterface with dot1q and vrf mapping?
03-02-2016 11:19 PM
That is fine.
03-02-2016 11:21 PM
so, the command is supported for port-channel subinterface with dot1q and vrf mapping?
03-02-2016 11:23 PM
03-02-2016 11:30 PM
Thanks, I read it before as it doesn't mention about VRF and BFD on port-channel
03-02-2016 11:42 PM
BFD on the physical interfaces, vrf on the sub-interfaces of the port-channel.
03-03-2016 12:32 AM
So, as the bfd neighbor is on vlan 101 and vlan 201, the actual configuration will be?
ASR1002#conf t
interface Port-channel1
no ip address
no negotiation auto
lacp min-bundle 2
!
!interface GigabitEthernet0/0/1
no ip address
no negotiation auto
channel-group 1 mode active
!
interface GigabitEthernet0/0/2
no ip address
no negotiation auto
channel-group 1 mode active
!
interface Port-channel1
service instance 1 ethernet
encapsulation dot1Q 101
ip vrf forwarding first_vrf
ip address 10.10.10.1 255.255.255.252
service-policy input COS-IN
bfd interval 250 min_rx 250 multiplier 3
no bfd echo
!
service instance 2 ethernet
encapsulation dot1Q 201
ip vrf forwarding second_vrf
ip address 10.10.10.5 255.255.255.252
service-policy input COS-IN
bfd interval 250 min_rx 250 multiplier 3
no bfd echo
!
03-03-2016 10:12 AM
Negative (with regard to BFD). I would expect it to be:
interface GigabitEthernet0/0/1
no ip address
no negotiation auto
channel-group 1 mode active
bfd interval 250 min_rx 250 multiplier 3
no bfd echo
interface GigabitEthernet0/0/2
no ip address
no negotiation auto
channel-group 1 mode active
bfd interval 250 min_rx 250 multiplier 3
no bfd echo
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