Multicast Source Discovery Protocol
Multicast Source Discovery Protocol (MSDP) describes a topology that connects multiple IPv4 Protocol Independent Multicast Sparse-Mode (PIM-SM) domains.  Each PIM-SM domain uses its independent Rendezvous Point (RP) without depending on RPs in other domains.
These sections describe the Arista MSDP implementation.
Section 38.1: MSDP Introduction is an overview and lists features supported by Arista switches.
Section 38.2: MSDP Description describes the MSDP protocol.
Section 38.3: MSDP Configuration describes configuration tasks that implement MSDP.
Section 38.4: MSDP Commands contains MSDP command descriptions.