bgp

It is possible for a single CE device to serve multiple MPLS clients. This requires traffic segregation to be extended to the CE device. The video looks at a scenario of multi-VRF CE device in Cisco MPLS VPN. We will configure two PE-CE routing protocols; BGP and OSPF, in VRF-lite setup and enable support for MPLS label exchange all the way to the CE router. Special configuration will be presented now that our CE router contains multiple VRF and participates in MPLS forwarding.

The video demonstrates configuration of BGP as PE-CE routing protocol in Cisco MPLS VPN. In addition to basic BGP configuration, we will go through more advance scenarios of dualed-home site and sites with a backdoor link, and try to understand how a Site-of-Origin (SoO) BGP attribute can be used to make inter-site traffic to always prefer the backdoor link. You will also learn two common BGP deployment options; identical and unique ASN, and the concept of AS Override. The lab finishes with verification of behavior of Local Preference in MPLS VPN.