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Configuration Tips<br />
L2 Switch with IGMP Snooping<br />
<strong>iMPath</strong><br />
N e t w o r k s<br />
Some L2 Switches with IGMP Snooping can be<br />
configured as Passive or Active<br />
This switch generates IGMP<br />
Queries. It is considered as the<br />
“Master” or the “Active”<br />
device<br />
Passive Passive Passive<br />
L2 Snooping<br />
L2 Snooping<br />
L2 Snooping<br />
L2 Snooping<br />
In this topology, there can only<br />
be one Master unit.<br />
Encoder<br />
Encoder Decoder Decoder<br />
Decoder<br />
Decoder<br />
Encoder<br />
Encoder<br />
This topology should only be considered for small networks.<br />
Most L2 IGMP Snooping Switches do not have the capacity to handle<br />
a large Control Center table # 2of IGMP Control <strong>Multicast</strong> Center # traffic. 1
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