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Multicast Tutor - iMPath Networks

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Limitations of IGMP Snooping<br />

<strong>iMPath</strong><br />

N e t w o r k s<br />

If this is a Gig E link and you have<br />

more then 70 Meg of Video traffic, no<br />

other application will run on this<br />

network until the link is re-established.<br />

Maximum port traffic will be exceeded.<br />

L2 Switch<br />

Encoder<br />

L2 Switch<br />

Encoder<br />

L2 Switch<br />

Encoder<br />

In the event of a communication<br />

break between the L2 and L3<br />

switches, the L2 IGMP Snooping<br />

switch will behave like a L2 switchDecoder<br />

L3 Switch<br />

A few minutes after loss of signal, the<br />

switches may* flood all <strong>Multicast</strong> signals<br />

to the ports of every switch<br />

* Behavior may differ depending on switch manufacturer.<br />

L2 Switch<br />

Encoder<br />

L2 Switch<br />

L2 Switch<br />

Encoder<br />

Encoder<br />

L2 Switch<br />

Encoder<br />

L2 Switches with IGMP Snooping have limitations.

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