Multicast Source Discovery Protocol (MSDP) is a Protocol Independent Multicast (PIM) family multicast routing protocol defined by Experimental RFC 3618. Despite becoming the IPv4 de facto standard for inter-domain multicast, development of the protocol stopped in 2006 and it was decided by the authors not to proceed with making it a proposed standard. MSDP interconnects multiple IPv4 PIM Sparse-Mode (PIM-SM) domains which enables PIM-SM to have Rendezvous Point (RP) redundancy and inter-domain multicasting RFC 4611.
MSDP uses TCP as its transport protocol. Each multicast tree needs to have its own RP. All of the RPs are peers (directly or through other MSDP peers). Messages contain the sender (source) address and the multicast group address (S,G). If an RP on its own domain receives a message, it determines if there are listeners for this group. If listeners exist, it triggers a PIM join into the source domain towards the data source. In a peering relationship, one MSDP peer listens for new TCP connections on the well-known port 639.
MSDP is deliberately unspecified for IPv6, for a number of reasons, including that protocols such as Source-Specific Multicast (SSM), Bi-directional Multicast and IPv6 Embedded Rendezvous Points would mean there was less requirement for MSDP.
Multicast Source Discovery Protocol
Multicast Source Discovery Protocol
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Multicast Source Discovery Protocol (MSDP) is a Protocol Independent Multicast (PIM) family multicast routing protocol defined by Experimental RFC 3618. Despite becoming the IPv4 de facto standard for inter-domain multicast, development of the protocol stopped in 2006 and it was decided by the authors not to proceed with making it a proposed standard. MSDP interconnects multiple IPv4 PIM Sparse-Mode (PIM-SM) domains which enables PIM-SM to have Rendezvous P…
Jul 10, 2023 · The Multicast Source Discovery Protocol (MSDP) is a multicast routing protocol that enables interconnection between multiple Protocol-Independent Multicast (PIM) Sparse Mode (PIM-SM) domains. MSDP allows …
Oct 16, 2023 · The Multicast Source Discovery Protocol (MSDP) stands as a crucial aspect, ensuring the most desirable delivery of data in multicast environments. This article explores …
Sep 7, 2024 · Enter Multicast Source Discovery Protocol (MSDP), an essential component in the world of multicasting. Whether you're an IT professional looking to broaden your knowledge or a student diving into network protocols, …
This document outlines how these protocols work together to provide an intra-domain and inter-domain Any Source Multicast (ASM) service. The PIM-SM specification assumes that SM …
Jun 22, 2009 · The typical way to configure Multicast Source Discovery Protocol (MSDP) involves first selecting one of your MBGP routers as the RP for your internal network. Then you set up …
Oct 10, 2010 · The Multicast Source Discovery Protocol (MSDP) is used to connect multicast routing domains. It typically runs on the same router as the Protocol Independent Multicast (PIM) sparse-mode rendezvous point (RP).
Jan 24, 2023 · The Multicast Source Discovery Protocol (MSDP) describes a mechanism to connect multiple IP Version 4 Protocol Independent Multicast Sparse-Mode (PIM-SM) domains together. Each PIM-SM domain uses its own …
Sep 18, 2020 · MSDP stands for Multicast Source Discovery Protocol which is used to share the multicast information between the different AS. MSDP protocol is an application layer protocol that works on top of TCP using well-known port …
Multicast Source Discovery Protocol (MSDP) is a mechanism to connect multiple Protocol Independent Multicast sparse mode (PIM-SM) domains. MSDP allows multicast sources for a …
