Review Questions


1:

IGMP version 2 includes an explicit leave message for hosts to transmit whenever they no longer want to receive a multicast stream. Why, then, does version 2 include the query message?

2:

Why doesn't a Catalyst normally learn multicast addresses?

3:

What Layer 2, Layer 3, and IGMP information does a multicast device transmit for a membership report?

4:

Assume that you have a switched network with devices running IGMP version 1 and the switches/routers have CGMP enabled. One of the multicast devices surfs the Web looking for a particular multicast stream. The user first connects to group 1 and finds it isn't the group that he wants. So he tries group 2, and then group 3, until he finally finds what he wants in group 4. Meanwhile, another user belongs to groups 1, 2, and 3. What happens to this user's link?



Cisco(r) LAN Switching
Cisco Catalyst LAN Switching
ISBN: B00007FYCI
EAN: N/A
Year: 2005
Pages: 223

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