Which routing protocol does the CE router run?
- any VPN-aware BGP protocol
- any VPN-aware IP routing protocol
- any IP routing protocol
- any VPN-aware link-state protocol
Explanation: From the perspective of a Customer Edge (CE) router, the MPLS L3 VPN backbone appears as a standard corporate backbone. The CE router is not required to be VPN-aware and does not need any specific configuration to participate in the VPN domain. It simply runs standard IP routing software (such as EIGRP, OSPF, RIPv2, or BGP) to exchange routing information with the PE router.
Related exam: Checkpoint Exam: MPLS and VPN Technologies
