Switching (VLAN/STP)
spanning-tree portfast
Skip listening/learning on this port — only safe for end-host ports.
Works on: SwitchMode: iface
Watch out
Pair with 'spanning-tree bpduguard enable' so a rogue switch doesn't kill your STP topology.
Run this command live
Don't just read it — type spanning-tree portfast 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 "spanning-tree portfast" command do?
Skip listening/learning on this port — only safe for end-host ports.
What's the common gotcha with "spanning-tree portfast"?
Pair with 'spanning-tree bpduguard enable' so a rogue switch doesn't kill your STP topology.