Interlogix NS3550-8T-2S User Manual User Manual
Page 140
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User’s Manual of NS3550-8T-2S
140
Figure 4-8-2:
Multicast Flooding
Figure 4-8-3:
IGMP Snooping Multicast Stream Control
IGMP Versions 1 and 2
Multicast groups allow members to join or leave at any time. IGMP provides the method for members and multicast routers to
communicate when joining or leaving a multicast group.
IGMP version 1 is defined in RFC 1112. It has a fixed packet size and no optional data.
The format of an IGMP packet is shown below:
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