Cisco me 3400 Guida Al Software
22-11
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 22 Configuring Port-Based Traffic Control
Configuring Port Security
Default Port Security Configuration
shows the default port security configuration for an interface.
Port Security Configuration Guidelines
•
Port security can only be configured on static access ports or trunk ports. A secure port cannot be a
dynamic access port.
dynamic access port.
•
A secure port cannot be a destination port for Switched Port Analyzer (SPAN).
•
A secure port cannot belong to a Fast EtherChannel or a Gigabit EtherChannel port group.
•
A secure port cannot be a private-VLAN port.
•
When a trunk port configured with port security and assigned to an access VLAN for data traffic and
to a voice VLAN for voice traffic, entering the switchport voice and switchport priority extend
interface configuration commands has no effect.
to a voice VLAN for voice traffic, entering the switchport voice and switchport priority extend
interface configuration commands has no effect.
When a connected device uses the same MAC address to request an IP address for the access VLAN
and then an IP address for the voice VLAN, only the access VLAN is assigned an IP address.
and then an IP address for the voice VLAN, only the access VLAN is assigned an IP address.
•
When you enter a maximum secure address value for an interface, and the new value is greater than
the previous value, the new value overwrites the previously configured value. If the new value is less
than the previous value and the number of configured secure addresses on the interface exceeds the
new value, the command is rejected.
the previous value, the new value overwrites the previously configured value. If the new value is less
than the previous value and the number of configured secure addresses on the interface exceeds the
new value, the command is rejected.
•
The switch does not support port security aging of sticky secure MAC addresses.
summarizes port security compatibility with other port-based features.
Table 22-2
Default Port Security Configuration
Feature
Default Setting
Port security
Disabled on a port.
Sticky address learning
Disabled.
Maximum number of secure
MAC addresses per port
MAC addresses per port
1.
Violation mode
Shutdown. The port shuts down when the maximum number of
secure MAC addresses is exceeded.
secure MAC addresses is exceeded.
Port security aging
Disabled. Aging time is 0.
Static aging is disabled.
Type is absolute.
Table 22-3
Port Security Compatibility with Other Switch Features
Type of Port or Feature on Port
Compatible with
Port Security
Port Security
Trunk port
Yes
Dynamic-access port (a VLAN Query Protocol [VQP] port configured with the
switchport access vlan dynamic interface configuration command)
switchport access vlan dynamic interface configuration command)
No
Routed port
No