As shown in Figure ,
it is considered to be good practice to verify your VLAN
configuration by using the show
vlan command while in
privileged mode. The output example from a
Cisco IOS command-based switch shows that VLAN 2 is configured on
module 0, port 3.
The output example from a set
command-based switch in Figure
shows that VLAN 1 is configured on Module 1, Ports 1 and 2; VLAN 10
is configured on Module 2, Ports 1 through 10; and VLAN 20 is
configured on Module 2, Ports 11 through 24.
The following facts should be
remembered:
- A created VLAN remains unused
until it is mapped to switch ports. Use the set
vlan command to map VLANs
to ports.
- The default configuration has all
Ethernet ports on VLAN 1. However, you can enter groups of ports
as individual entries, for example, 2/1, 3/3, 3/4, or 3/5. You
can also use a hyphenated format to map multiple ports, for
example, 2/1-4 or 3/3-5.
- Do not enter spaces between the
port numbers. The switch will give you an error message because
a space delimits another argument that is not in the command
structure of this command.
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Interactive
Lab Activity (Flash,
390 kB) |
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In
this activity, you will learn how to configure
and verify VLAN's on a Catalyst 4000 switch. |
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Interactive
Lab Activity (Flash,
380 kB) |
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In
this activity, you will learn how to configure and
verify VLAN's on a Catalyst 2900 switch. |
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