Nortel 450-24t 用户指南

下载
页码 400
Using the BayStack 450 10/100/1000 Series Switch
1-72
309978-D Rev 01
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 1-42).
Figure 1-42.
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