Chapter 9
Creating and Maintaining VLANs
Displaying VLANs in the VTP Database
Use the show vlan privileged EXEC command to display a list of VLANs in the database, including
status, ports, and configuration:
Switch# show vlan
VLAN Name
---- -------------------------------- --------- -------------------------------
1
20
21
22
27
31
1002 fddi-default
1003 trcrf-default
1004 fddinet-default
1005 trbrf-default
VLAN Type
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1
20
21
VLAN Type
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
22
27
31
1002 fddi
1003 trcrf 101003
1004 fdnet 101004
1005 trbrf 101005
VLAN AREHops STEHops Backup CRF
---- ------- ------- ----------
1003 7
Use the show vlan brief privileged EXEC command to display a list of VLANs in the database with
status and port information but without configuration information:
Switch# show vlan brief
VLAN Name
---- -------------------------------- --------- -------------------------------
1
20
21
22
27
31
1002 fddi-default
1003 trcrf-default
1004 fddinet-default
1005 trbrf-default
78-11194-03
default
VLAN0020
VLAN0021
VLAN0022
VLAN0027
VLAN0031
SAID
MTU
enet
100001
1500
enet
100020
1500
enet
100021
1500
SAID
MTU
enet
100022
1500
enet
100027
1500
enet
100031
1500
101002
1500
4472
1500
4472
7
off
default
VLAN0020
VLAN0021
VLAN0022
VLAN0027
VLAN0031
Status
Ports
active
Gi0/1, Gi0/2, Gi0/3, Gi0/4
Gi0/7, Gi0/8, Gi0/9, Gi0/11
Gi0/12
active
active
active
active
active
active
active
active
active
Parent RingNo BridgeNo Stp
-
-
-
-
-
-
-
-
-
Parent RingNo BridgeNo Stp
-
-
-
-
-
-
-
-
-
-
-
-
1005
3276
-
-
-
1
-
-
15
Status
Ports
active
Gi0/1, Gi0/2, Gi0/3, Gi0/4
Gi0/7, Gi0/8, Gi0/9, Gi0/11
Gi0/12
active
active
active
active
active
active
active
active
active
Catalyst 3550 Multilayer Switch Software Configuration Guide
VLANs in the VTP Database
BrdgMode Trans1 Trans2
-
-
1002
1003
-
-
0
0
-
-
0
0
BrdgMode Trans1 Trans2
-
-
0
0
-
-
0
0
-
-
0
0
-
-
1
1003
-
srb
1
1002
ibm
-
0
0
ibm
-
0
0
9-21