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Chapter 7
Multi-Layer Switching (MLS)
Answers to Review Questions
1.
D. MLSP is the proper acronym for Multilayer Switching Protocol.
MFSC should be MSFC; PCF should be PFC.
2.
D. Multilayer Switching Switching Engine is the name of the compo-
nent. The proper acronym is provided by D.
3.
C. MLS-RP represents the broad spectrum of route processors. RP,
RSP, and MSFC are all types of route processors.
4.
B, C. The topology name comes from the original look of an external
router connected to a switch. With the implementation of RSM/
MSFC, the same functional topology is achieved in the same chassis.
The media connection type does not define the topology.
5.
C, D. CRC can vary from packet to packet and is used for error
checking. The payload is also unique for each packet. Flows are estab-
lished using packet similarities.
6.
C. The key to this question is twofold. The MLS-RP is the only device
that sends hello packets. Because the packets are sent to a multicast
address, the MLS-RP doesn't require a response from the switch. The
MLS-RP doesn't need to establish an actual connection with the
switch.
7.
B. XTAGs are used by the MLS-SE to identify each MLS-RP con-
nected to the layer 2 network. Each switch can utilize the same XTAG
values; they are only used locally.
8.
C. The
show mls rp ip
command is used on routers and doesn't
provide XTAG information. Neither do any of the other switch
commands.
9.
B, D. Both packets must be identified to complete the shortcut entry.
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