On an MPLS/VPN PE router, I have configured OSPF as the PE/CE routing protocol.
I configured several OSPF processes one for each VRF.
But if I have several customers who are using the same OSPF area ID on the CE side, may I configure the same area ID for several OSPF processes on the PE side ? Of course, all of those areas are independent and I don want to see customer1s routes into the OSPF of customer2 !
In the following example, I have 2 customers. Each customer has got 2 sites and has an OSPF backbone area which is spread accross his 2 sites. For each customer, I want to interconnect his 2 sites and extend OSPF backbone area across MPLS.
The OSPF backbone area of customer1 is different from the one of customer2, even if the ID is the same...
Here is a sample of the PEs configuration :
ip vrf forwarding customer1
ip address 10.1.1.1 255.255.255.0
ip vrf forwarding customer2
ip address 10.1.2.1 255.255.255.0
router ospf 1 vrf customer1
network 10.1.1.0 0.0.0.255 area 0
router ospf 2 vrf customer2
network 10.1.2.0 0.0.0.255 area 0
Won I experience problems if I use the same area ID there ?
Thanks for your help !