Multicast Virtual Private Networks (MVPNs)
Glenn Warnock B.Sc., Mira Ghafary B.Sc., Ghassan Shaheen M.Sc. · 2015
This chapter introduces the multicast VPN (MVPN) capability. There are two methods supported in the Alcatel-Lucent Service Router Operating System (SR OS) for MVPN: Draft Rosen and Next Generation MVPN (NG MVPN). The key functions that must be implemented in an MVPN are the discovery of the PE routers participating in the MVPN, the creation of multicast distribution trees (MDTs) for the transport of customer multicast data, and the propagation of customer PIM signaling across the service provider network. The original approach to MVPN is a vendor-developed method known as Draft Rosen, which is described in the Historic RFC 6037. Customer multicast data is delivered to the VRF instance at the ingress PE. The first step of instantiating the MVPN is to build the full mesh of P-tunnels between all PEs that provide the transport for the I-PMSI. The P-tunnel is used to transport customer data across the core.