PIM
In best respects, PIM for IPv6 operates absolutely like PIM for IPv4. However, some differences are
worth discussing here. Before account this section, become accustomed with PIM by studying
Chapter 17, “IP Multicast Routing.”
IPv6 PIM supports two modes of operation: dispersed approach (SM) and source-specific multicast
(SSM). PIM for IPv6 does not abutment close mode. As is accurate in IPv4 PIM dispersed mode, IPv6 PIM
requires a Rendezvous Point (RP) to be statically authentic at the RP router. However, other
PIM-SM routers can apprentice about the RP application anchored RP support. This affection works by
embedding advice about RPs in MLD address letters and PIM messages. Routers then
watch for the RP for anniversary multicast accumulation and use that RP for all PIM-SM activities. You can
statically override anchored PIM advice by allegorical RPs on a per-group basis.