Multicast is an Alias Server function: • N_Port must register with Alias Server • Alias Server assigns the Multicast Group identifier (MG_ID identifier) • The initiating port performs no special functions; it simply uses the MG_ID as the destination address.
• One frame is transmitted and the same frame is delivered to each of the ports in the multicast group.
• A given N_Port may be a member of multiple multicast groups Note:
Alias Server is defined by standard but not implemented by any vendor. Alias Server supports Class 3 Unacknowledged Multicast and Hunt Groups. Multicast Server supports Class 6 Acknowledged Multicast (Also unused).