Security
switchport port-security maximum <n>
Allow at most N MAC addresses on this port.
Works on: SwitchMode: iface
Watch out
Like 'violation' and 'mac-address', this is stored but not enforced until the bare 'switchport port-security' turns the feature on.
Run this command live
Don't just read it — type switchport port-security maximum <n> 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 "switchport port-security maximum <n>" command do?
Allow at most N MAC addresses on this port.
What's the common gotcha with "switchport port-security maximum <n>"?
Like 'violation' and 'mac-address', this is stored but not enforced until the bare 'switchport port-security' turns the feature on.
More Security commands
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