BGP/MPLS VPN deployment has been a successful story for many providers. We continuous work on meeting customer requirements with enhanced service features, and provide reliable and scalable network solutions.

In this presentation, we will focus on lessons learned from real world deployment experience. We will first overview today's customer requirements for BGP/MPLS VPN services. We then discuss a few challenges we faced and the possible solutions: LDP failure detection and recovery. Inter-provider implementation challenges: Supporting all intra-AS VPN features, e.g. support iBGP/eiBGP multipath load sharing under Inter-AS options B; gateway selection for Inter-AS Option C. Finally, scalability improvement requirements based on the growth of the service will also be discussed.