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Now that you have
completed this chapter, you should have a firm understanding of
the following concepts:
-
VLANs solve many of
the issues found in Layer 2 environments. These issues include
broadcast control, isolation of problem components in the
network, security, and load balancing through the use of a Layer
3 protocol between VLANs.
-
VLAN identification
allows different VLANs to be carried on the same physical link,
called a trunk link. There are two different types of frame
identification methods: ISL and 802.1Q.
-
The VLAN Trunking
Protocol provides support for dynamic reporting of the addition,
deletion, and renaming of VLANs across the switch fabric.
-
The overwrite
process would mean that if the server deleted all VLANs and had
a higher configuration revision number, the other devices in the
VTP domain would also delete their VLANs.
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