Static Virtual LANs (VLANs)
Configuring VLANs
4108gl Switch
VLAN 1
VLAN 2
5300xl, 3400cl, or 6400cl Switch
VLAN 1
VLAN 2
Both switches have
multiple forwarding
databases.
Figure 2-11. Example of a Valid Topology for Devices Having Multiple Forwarding
Databases in a Multiple VLAN Environment
Configuring VLANs
Menu: Configuring Port-Based VLAN Parameters
The Menu interface enables you to configure and view port-based VLANs.
Note The Menu interface configures and displays only port-based VLANs. The CLI
configures and displays port-based and protocol-based VLANs (page 2-27).
In the factory default state, support is enabled for up to eight VLANs. (You can
reconfigure the switch to support up to 256 VLANs.) Also, in the default
configuration, all ports on the switch belong to the default VLAN and are in
the same broadcast/multicast domain. (The default VLAN is also the default
Primary VLAN—refer to
“The Primary VLAN” on page 2-43.) In addition to the
default VLAN, you can configure additional static VLANs by adding new VLAN
names and VIDs, and then assigning one or more ports to each VLAN. (The
maximum of 256 VLANs includes the default VLAN, all additional static VLANs
you configure, and any dynamic VLANs the switch creates if you enable
GVRP—
page 3-1.) Note that each port can be assigned to multiple VLANs by
using VLAN tagging. (See “802.1Q VLAN Tagging” on page 2-38.)
To Change VLAN Support Settings
This section describes:
■ Changing the maximum number of VLANs to support
2-21
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