Cisco Catalyst 3750 Metro

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Catalyst 3750 Metro Switch Command Reference
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Chapter 2 Catalyst 3750 Metro Switch Cisco IOS Commands
switchport port-security
switchport port-security
Use the switchport port-security interface configuration command without keywords to enable port
security on the interface. Use the keywords to configure secure MAC addresses, sticky MAC address
learning, a maximum number of secure MAC addresses, or the violation mode. Use the no form of this
command to disable port security or to set the parameters to their default states.
switchport port-security [aging] [mac-address mac-address [vlan vlan-id] | mac-address sticky
[mac-address]] [maximum value [vlan vlan-list]] [violation {protect | restrict | shutdown}]
no switchport port-security [aging] [mac-address mac-address [vlan vlan-id] | mac-address
sticky [mac-address]] [maximum [vlan vlan-list]] [violation {protect | restrict | shutdown}]
Syntax Description aging (Optional) See the switchport port-security aging command.
mac-address mac-address (Optional) Specify a secure MAC address for the interface by entering
a 48-bit MAC address. You can add additional secure MAC addresses
up to the maximum value configured.
vlan vlan-id (Optional) On a trunk port only, specify the VLAN ID and the MAC
address. If no VLAN ID is specified, the native VLAN is used.
mac-address sticky
[mac-address]
(Optional) Enable the interface for sticky learning by entering only the
mac-address sticky keywords. When sticky learning is enabled, the
interface adds all secure MAC addresses that are dynamically learned to
the running configuration and converts these addresses to sticky secure
MAC addresses.
(Optional) Enter a mac-address to specify a sticky secure MAC address.
maximum value (Optional) Set the maximum number of secure MAC addresses for the
interface.The maximum number of secure MAC addresses that you can
configure on a switch is determined by the maximum number of
available MAC addresses allowed in the system. This number is
determined by the active Switch Database Management (SDM)
template. See the
sdm prefer command. This number represents the total
of available MAC addresses, including those used for other Layer 2
functions and any other secure MAC addresses configured on interfaces.
The default setting is 1.
vlan [vlan-list] (Optional) For trunk ports, you can set the maximum number of secure
MAC addresses on a VLAN. If the vlan keyword is not entered, the
default value is used.
• vlan—set a per-VLAN maximum value.
• vlan vlan-list—set a per-VLAN maximum value on a range of
VLANs separated by a hyphen or a series of VLANs separated by
commas. For nonspecified VLANs, the per-VLAN maximum value
is used.
violation (Optional) Set the security violation mode or the action to be taken if
port security is violated. The default is shutdown.