Single Instance:
switch# show vlan brief
Vlan database
-------------
Vlan ID : 1
Member Ports : Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5, Fa0/6
Fa0/7, Fa0/8, Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16, Fa0/17,
Fa0/18, Fa0/19, Fa0/20, Fa0/21, Fa0/22,
Fa0/23, Fa0/24
Gi0/1, Gi0/2, Gi0/3, Gi0/4
Untagged Ports : Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5, Fa0/6
Fa0/7, Fa0/8, Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16, Fa0/17,
Fa0/18, Fa0/19, Fa0/20, Fa0/21, Fa0/22,
Fa0/23, Fa0/24
Gi0/1, Gi0/2, Gi0/3, Gi0/4
Forbidden Ports : None
Name :
Status : Permanent
----------------------------------------------------
switch# show vlan summary
Number of vlans : 1
Multiple Instance:
switch# show vlan
Switch - default
Vlan database
-------------
Vlan ID : 1
Member Ports : Gi0/1
Untagged Ports : Gi0/1
Forbidden Ports : None
Name :
Status : Permanent
----------------------------------------------------
Switch - cust1
Vlan database
-------------
Vlan ID : 1
Member Ports : Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5
Untagged Ports : Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5
Forbidden Ports : None
Name :
Status : Permanent
----------------------------------------------------
Vlan ID : 2
Member Ports : Gi0/1
Untagged Ports : None
Forbidden Ports : None