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BayStack 450 10/100/1000 Series Switches
302401-D Rev 00
1-51
After the switches learn which ports are requesting access to the IP Multicast
stream, all other ports not responding to the queries are blocked from receiving the
IP Multicast (Figure 1-33
).
Figure 1-33. BayStack 450 Switch Filtering IP Multicast Streams (2 of 2)
The consolidated proxy report generated by the switch remains transparent to
layer 3 of the International Organization for Standardization, Open Systems
Interconnection (ISO/OSI) model. (The switch IP address and MAC address are
not part of proxy report generation.) The last reporting IGMP group member in
each VLAN represents all of the hosts in that VLAN and IGMP group.
BS45023B
Designated
router
Host
membership
query
Internet
BayStack 450-24T
Switch
BayStack 450-24T
Switches
BayStack 450-24T
Switch
Key
Multicast stream
S2
S4
S1
S3
kombk.book Page 51 Tuesday, June 29, 1999 3:25 PM