ZyXEL Communications XGS-4526 사용자 설명서

XGS-4526/4528F/4728F User’s Guide

This chapter shows you how to configure the Switch as a multicast router. See also 

 for information on IGMP snooping.

IP multicast is an IETF standard for distributing data to multiple recipients. The 
following figure shows a multicast session and the relationship between a 
multicast server, multicast routers and multicast hosts. A multicast server 
transmits multicast packets and multicast routers forward multicast packets to 
multicast hosts.   

Figure 168   IP Multicast 

A host can decide to join or leave a multicast group at any time. A host can also be 
a member of more than one multicast group. Multicast groups are identified by IP 
addresses in the Class D range (224.0.0.0 to 239.255.255.255). A multicast 
server sends packets addressed to a particular multicast group (multicast IP 
address).