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Ethernet Switch selection<br />
<strong>iMPath</strong><br />
N e t w o r k s<br />
• There are 3 types of Ethernet Switches<br />
– Layer 2 Switch<br />
• Distributes traffic to each destination using MAC addressing table.<br />
• Broadcasts the <strong>Multicast</strong> traffic across all its ports<br />
– There are no <strong>Multicast</strong> traffic filters with these switches<br />
– Layer 2 Switch with IGMP Snooping<br />
• Distributes traffic to each destination using MAC addressing table<br />
• Provides limited control of <strong>Multicast</strong> traffic to prevent broadcast of the<br />
traffic to all ports.<br />
• Layer 3 IGMP master is needed in the network<br />
– Layer 3 Switch/Router with IGMP<br />
• Distributes traffic to each destination using MAC addressing table.<br />
• Distributes traffic to each destination using IP subnet addressing table.<br />
• Provides maximum control of <strong>Multicast</strong> traffic to prevent broadcast of<br />
the traffic to all ports and all subnet.
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