Cisco Systems 3560 Manual De Usuario

Use the show vlan privileged EXEC command to display a list of all VLANs on the switch, including 
extended-range VLANs. The display includes VLAN status, ports, and configuration information. To 
view normal-range VLANs in the VLAN database (1 to 1005), use the show VLAN database 
configuration command (accessed by entering the vlan database privileged EXEC command). 

 lists the commands for monitoring VLANs.

For more details about the show command options and explanations of output fields, see the command 
reference for this release.

These sections contain this conceptual information:

A trunk is a point-to-point link between one or more Ethernet switch interfaces and another networking device 
such as a router or a switch. Ethernet trunks carry the traffic of multiple VLANs over a single link, and you 
can extend the VLANs across an entire network.

Two trunking encapsulations are available on all Ethernet interfaces:

Inter-Switch Link (ISL)—Cisco-proprietary trunking encapsulation.

IEEE 802.1Q— industry-standard trunking encapsulation.

VLAN database configuration 

Display status of VLANs in the VLAN database.

show current [vlan-id]

VLAN database configuration 

Display status of all or the specified VLAN in the VLAN 
database.

show interfaces [vlan 
vlan-id]

Privileged EXEC

Display characteristics for all interfaces or for the specified 
VLAN configured on the switch.

show vlan [id vlan-id]

Privileged EXEC

Display parameters for all VLANs or the specified VLAN on 
the switch.