Chapter 10 Configuring Vlan - Cisco 3845 - Security Bundle Router Software Manual

Understanding VLANs
Figure 10-1
Figure 10-1
Cisco router
Ethernet
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.
The switch does not support VLAN Trunking Protocol (VTP).
Note
Traffic between VLANs must be routed. Switches can route traffic between VLANs by using switch
virtual interfaces (SVIs) that are explicitly configured and assigned an IP address. For more information,
see the
on page
This section includes these topics:
Supported VLANs, page 10-3
•
Normal-Range VLANs, page 10-3
•
Extended-Range VLANs, page 10-4
•
VLAN Port Membership Modes, page 10-4
•
• UNI VLANs, page 10-4
Cisco ME 3800X and 3600X Switch Software Configuration Guide
10-2
shows an example of VLANs segmented into logically defined networks.
VLANs as Logically Defined Networks
Gigabit
"Switch Virtual Interfaces" section on page 9-4
9-19.
Engineering Marketing
VLAN VLAN
and the
Chapter 10 Configuring VLANs
Accounting
VLAN
"Configuring Layer 3 Interfaces" section
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