Displaying a switch VLAN configuration
The
show vlans command lists the VLANs currently running in the switch, with VID, VLAN name, and VLAN status. Dynamic VLANs appear only if the switch is running with GVRP enabled and one or more ports has dynamically joined an advertised VLAN. In the default configuration, GVRP is disabled.
Syntax:
show vlans
The following describes the fields displayed with this command (see the example output):
- Maximum VLANs to support
Shows the number of VLANs the switch is currently configured to support.
- Primary VLAN
See The primary VLAN.
- Management VLAN
- 802.1Q VLAN ID
The VLAN identification number, or VID.
- Name
The default or specified name assigned to the VLAN. For a static VLAN, the default name consists of
VLAN-xwherexmatches the VID assigned to that VLAN. For a dynamic VLAN, the name consists ofGVRP_xwherexmatches the applicable VID.- Status
- Port-Based
Port-Based, static VLAN
- Protocol
Protocol-Based, static VLAN
- Dynamic
Port-Based, temporary VLAN learned through GVRP
- Voice
Indicates whether a port-based VLAN is configured as a voice VLAN. See Using voice VLANs.
- Jumbo
Indicates whether a VLAN is configured for Jumbo packets. For more on jumbos, see "Port Traffic Controls" in the management and configuration guide for your switch.
This example shows the listing from the
show vlans command. When GVRP is disabled (the default), Dynamic VLANs do not exist on the switch and do not appear in this listing. For more information, see
GVRP.
Displaying VLAN listing with GVRP enabled
switch# show vlans Status and Counters - VLAN Information Maximum VLANs to support : 256 Primary VLAN : DEFAULT_VLAN Management VLAN : VLAN ID Name | Status Voice Jumbo ------- -------------------- + ---------- ----- ----- 1 DEFAULT_VLAN | Port-based No No 10 VLAN_10 | Port-based Yes Yes 15 VLAN_15 | Port-based No No 20 VLAN_20 | Protocol No No 33 VLAN_33 | Dynamic No No