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Chapter 9
Multicast
and broadcast communications. We then discussed how IP addresses were
designated as multicast addresses. You learned how to convert them to layer
2 MAC addresses also.
The implementation of multicast can have significant impact on a net-
work. This merited the topics regarding managing multicast distribution.
Once you understood the basics of multicast and how hosts and sources par-
ticipate, we were able to move on and cover topics regarding the different
types of routing protocols that were made for multicast routing. Finally, we
discussed PIM-DM, PIM-SM, and CBT. These are independent protocols
that use tree distribution to manage multicast data delivery in a network.
Because this chapter focused on theory instead of configuration, there
were no commands introduced. Therefore, this chapter doesn't include a
table of commands, nor does it include a written lab and hands-on lab.
You'll learn more about configuring multicast in Chapter 10.
Key Terms
Before you take the exam, be sure you're familiar with the following terms:
bidirectional shared tree
multicast
broadcast
multicast group
Cisco Group Management
Protocol (CGMP)
Multicast Open Shortest Path
First (MOSPF)
Distance Vector Multicast Routing
Protocol (DVMRP)
PIM dense mode (PIM DM)
flooding
PIM sparse mode (PIM SM)
grafting
Protocol Independent Multicast
(PIM)
IGMP Join process
Pruning
IGMP Leave process
shared trees
IGMP Query process
source trees
Internet Group Management
Protocol version 1 (IGMPv1)
unicast
Internet Group Management
Protocol version 2 (IGMPv2)
unidirectional shared tree
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