Show & diagnostics
show vlan brief
VLAN database with ports assigned to each. Trunks don't appear here — they carry every VLAN.
Works on: SwitchMode: enable
Sample output
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active 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, Gi0/2
10 USERS active Fa0/1, Fa0/2
20 SERVERS active Fa0/3, Fa0/4
99 MGMT active Fa0/5
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsupCaptured from the NetForge-AI simulator running a real topology.
Run this command live
Don't just read it — type show vlan brief in a real network simulator in your browser and watch it take effect. No install, no account needed to start.
Frequently asked
What does the "show vlan brief" command do?
VLAN database with ports assigned to each. Trunks don't appear here — they carry every VLAN.