Multicast Router Discovery, December 2005
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The concept of Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) snooping requires the ability to identify the location of multicast routers. Since snooping is not standardized, there are many mechanisms in use to identify the multicast routers. However, this can lead to interoperability issues between multicast routers and snooping switches from different vendors.
This document introduces a general mechanism that allows for the discovery of multicast routers. This new mechanism, Multicast Router Discovery (MRD), introduces a standardized means of identifying multicast routers without a dependency on particular multicast routing protocols. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.