same subnet in different vrf on the same router

[brux84]

Hi ,
i would like to configure on a pair of Cisco 7609 PE routers two L3 SVI interfaces on the same subnet but in different vrf; Is it possible to create such architecture (see attachment)?

[Jon Marshall · Accepted solution]

Yes that should work fine. 

Jon

[Seb Rupik · Accepted solution]

Hi there,

As @Jon Marshall points out the topology would work. The layer 3 configuration would look something like:

! PE-A
!
ip vrf VRF-X
!
ip vrf VRF-Y
!
int vlan 10
  ip vrf forwarding VRF-X
  ip address 10.10.10.2 255.255.255.248
  standby 1 ip 10.10.10.1
  standby 1 priority 110
!
int vlan 20
  ip vrf forwarding VRF-Y
  ip address 10.10.10.2 255.255.255.248
  standby 2 ip 10.10.10.1
  standby 2 priority 100
!
  
! PE-B
!
ip vrf VRF-X
!
ip vrf VRF-Y
!
int vlan 10
  ip vrf forwarding VRF-X
  ip address 10.10.10.3 255.255.255.248
  standby 1 ip 10.10.10.1
  standby 1 priority 100
!
int vlan 20
  ip vrf forwarding VRF-Y
  ip address 10.10.10.3 255.255.255.248
  standby 2 ip 10.10.10.1
  standby 2 priority 110
!

cheers,

Seb.