When deploying BGPIMPLS IPVPN, when two VPNs have a common site, the common site must not use overlapping address space with other sites of the two VPNs.

Deployment in a small and medium-sized networkOSPF,When viewing the routing table of a device, it is found that there are only directly connected routes.
It is not possible for the operation to cause the fault?

When deploying BGPIMPLS IPVPN, when two VPNs have a common site, the common site must not use overlapping address spaces with other sites of the two VPNs.

What is the Router-ID of OSPFv3?

Regarding the MPLS forwarding process, which description of the ingress node forwarding is correct? (Multiple choice)