Cisco Catalyst 2900 Series XL Especificaciones descargar pdf (Pagina 185)

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Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide

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Chapter 7 Configuring the Switch Ports

Enabling Port Security

Secured ports restrict a port to a user-defined group of stations. When you assign secure addresses to a

secure port, the switch does not forward any packets with source addresses outside the group of

addresses you have defined. If you define the address table of a secure port to contain only one address,

the workstation or server attached to that port is guaranteed the full bandwidth of the port. As part of

securing the port, you can also define the size of the address table for the port.

Secured ports generate address-security violations under these conditions:

• The address table of a secured port is full and the address of an incoming packet is not found in the

table.

• An incoming packet has a source address assigned as a secure address on another port.

Limiting the number of devices that can connect to a secure port has these advantages:

• Dedicated bandwidth—If the size of the address table is set to 1, the attached device is guaranteed

the full bandwidth of the port.

• Added security—Unknown devices cannot connect to the port.

These options validate port security or indicate security violations:

For the restrictions that apply to secure ports, see the “Avoiding Configuration Conflicts” section on

page 9-2.

Interface Port to secure.

Security Enable port security on the port.

Trap Issue a trap when an address-security violation occurs.

Shutdown Port Disable the port when an address-security violation occurs.

Secure Addresses Number of addresses in the address table for this port. Secure ports have at

least one address.

Max Addresses Number of addresses that the address table for the port can contain.

Security Rejects The number of unauthorized addresses seen on the port.

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Cisco Catalyst 2900 Series XL Especificaciones Pagina 185