Supported Vlans - Cisco Catalyst 2360 Software Configuration Manual

Chapter 9 Configuring VLANs
Understanding VLANs
Figure 9-1 shows an example of VLANs segmented into logically defined networks.
Figure 9-1 VLANs as Logically Defined Networks
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.
Traffic between VLANs must be routed or fallback bridged. The switch can route traffic between
VLANs by using switch virtual interfaces (SVIs). An SVI must be explicitly configured and assigned an
IP address to route traffic between VLANs. For more information, see the "Switch Virtual Interfaces"
section on page 8-3.

Supported VLANs

The switch supports VLANs in VTP client, server, and transparent modes. VLANs are identified by a
number from 1 to 4094. VLAN IDs 1002 through 1005 are reserved for Token Ring and FDDI VLANs.
VTP only learns normal-range VLANs, with VLAN IDs 1 to 1005; VLAN IDs greater than 1005 are
extended-range VLANs and are not stored in the VLAN database. The switch must be in VTP
transparent mode when you create VLAN IDs from 1006 to 4094.
Although the switch supports a total of 128 (normal range and extended range) VLANs, the number of
SVIs and other configured features affects the use of the switch hardware.
The switch supports per-VLAN spanning-tree plus (PVST+) or rapid PVST+ with a maximum of 64
spanning-tree instances. One spanning-tree instance is allowed per VLAN. See the "Normal-Range
VLAN Configuration Guidelines" section on page 9-5 for more information about the number of
spanning-tree instances and the number of VLANs. The switch supports the IEEE 802.1Q trunking
method for sending VLAN traffic over Ethernet ports.
Catalyst 2360 Switch Software Configuration Guide
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