A simple explanation of multicast traffic, multicast groups, and the general procedure for their formation using IGMP and Rendezvous Point Identification (PIM) as examples.
Standards:
IEEE 802.1(x) (where (x): D, Q, E, B, X, AE)
IEEE 802.11aa
IEEE 802.5
ISO 9542
https://datatracker.ietf.org/doc/html... - recommended starting point
https://datatracker.ietf.org/doc/html...
https://datatracker.ietf.org/doc/html...
https://datatracker.ietf.org/doc/html...