Figure 74. Multicast Source Discovery Protocol (MSDP)
RPs advertise each (S,G) in its domain in type, length, value (TLV) format. The total number of TLVs
contained in the SA is indicated in the “Entry Count” field. SA messages are transmitted every 60 seconds,
and immediately when a new source is detected.
Figure 75. MSDP SA Message Format
572 Multicast Source Discovery Protocol (MSDP)