Cisco IE 4000, Руководство по настройке программного обеспечения

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Configuring Port-Based Traffic Control
Information About Port-Based Traffic Control
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shutdown vlan—Use to set the security violation mode per-VLAN. In this mode, the VLAN is error disabled instead of
the entire port when a violation occurs
Default Port Security Configuration
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.

A secure port cannot be a destination port for Switched Port Analyzer (SPAN).

A secure port cannot belong to a Fast EtherChannel port group.
Voice VLAN is only supported on access ports and not on trunk ports, even though the configuration is allowed.

When you enable port security on an interface that is also configured with a voice VLAN, set the maximum allowed
secure addresses on the port to two. When the port is connected to a Cisco IP phone, the IP phone requires one
MAC address. The Cisco IP phone address is learned on the voice VLAN, but is not learned on the access VLAN. If
you connect a single PC to the Cisco IP phone, no additional MAC addresses are required. If you connect more than
one PC to the Cisco IP phone, you must configure enough secure addresses to allow one for each PC and one for
the phone.
Table 47 Security Violation Mode Actions
Violation Mode Traffic is
Forwarded
1
Sends SNMP
Trap Sends syslog
Message Displays Error
Message
2
Violation
Counter
Increments Shuts Down
Port
protect No No No No No No
restrict No Yes Yes No Yes No
shutdown No No No No Yes Yes
shutdown vlan No No Yes No Yes No
3
1. Packets with unknown source addresses are dropped until you remove a sufficient number of secure MAC addresses.
2. The switch returns an error message if you manually configure an address that would cause a security violation.
3. Shuts down only the VLAN on which the violation occurred.
Feature Default Setting
Port security Disabled on a port.
Sticky address learning Disabled.
Maximum number of secure MAC
addresses per port 1
Violation mode Shutdown. The port shuts down when the maximum number of secure MAC
addresses is exceeded.
Port security aging Disabled. Aging time is 0.
Static aging is disabled.
Type is absolute.