Understanding VLANs
Figure 13-1
Figure 13-1 VLANs as Logically Defined Networks
Cisco router
VLANs are often associated with IP subnetworks. For example, all the end stations in a particular IP
subnet belong to the same VLAN. Interface VLAN membership on the switch is assigned manually on
an interface-by-interface basis. When you assign switch interfaces to VLANs by using this method, it is
known as interface-based, or static, VLAN membership.
Supported VLANs
Table 13-1
Table 13-1 Maximum Number of Supported VLANs
Switch Model
Catalyst 2950-12
Catalyst 2950-24
Catalyst 2950C-24
Catalyst 2950G-12-EI
Catalyst 2950G-24-EI
Catalyst 2950G-48-EI
Catalyst 2950G-24-EI-DC 250
Catalyst 2950T-24
Catalyst 2950 Desktop Switch Software Configuration Guide
13-2
shows an example of VLANs segmented into logically defined networks.
Fast
Ethernet
lists the number of supported VLANs on Catalyst 2950 switches.
Number of
Supported VLANs
64
64
250
250
250
250
250
Engineering
Marketing
VLAN
VLAN
Chapter 13
Configuring VLANs
Accounting
VLAN
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