White Paper Abstract:
This document summarizes that there are a number of mechanisms for core transport for MVPNs. GRE/PIM is widely deployed today and is a viable option for core MVPN transport. For label-based MVPN solutions, mLDP presents a better choice for core MVPN transport when compared to P2MP RSVP-TE. mLDP is receiver driven, does not require periodic signaling, supports MP2MP LSPs, and is better suited for MVPN deployments. It is suitable for secondary video and consumer video distribution where participants are dynamic. P2MP RSVP-TE is better suited when there are stringent TE requirements and participants are not dynamic, such as primary video and studio-to-studio distribution. mLDP scales better than P2MP RSVP-TE for MVPNs. MP2MP LSPs provide huge savings for mLDP-based MVPNs. mLDP is the protocol of choice for the MVPN core.