Setting The Port Security Age Timer; Specifying Secure Mac Addresses; Autosaving Secure Mac Addresses To The Startup-Config File - Dell PowerConnect B-RX Configuration Manual

The <number-of-addresses> parameter can be set to a number from 0 – (64 + the total number of
global resources available) The total number of global resources is 2048 or 4096, depending on
flash memory size. Setting the parameter to 0 prevents any addresses from being learned. The
default is 1.

Setting the port security age timer

By default, the learned MAC addresses stay secure indefinitely. You can optionally configure the
device to age out secure MAC addresses after a specified amount of time.
To set the port security age timer to 10 minutes globally.
BigIron RX(config)# global-port-security
BigIron RX(config-port-security)# age 10
To set the port security age timer to 10 minutes on a specific interface.
BigIron RX(config)# int e 7/11
BigIron RX(config-if-e100-7/11)# port security
BigIron RX(config-port-security-e100-7/11)# age 10
Syntax: [no] age <minutes>
The default is 0 (never age out secure MAC addresses).

Specifying secure MAC addresses

To specify a secure MAC address on an interface, enter commands such as the following.
BigIron RX(config)# int e 7/11
BigIron RX(config-if-e100-7/11)# port security
BigIron RX(config-port-security-e100-7/11)# secure 0050.DA18.747C
Syntax: [no]secure <mac-address>

Autosaving secure MAC addresses to the startup-config file

The learned MAC addresses can automatically be saved to the startup-config file at specified
intervals. For example, to automatically save learned secure MAC addresses on the device every
twenty minutes, enter the following commands.
BigIron RX(config)# global-port-security
BigIron RX(config-port-security)# autosave 20
Syntax: [no] autosave <minutes>
You can specify from 15 – 1440 minutes. By default, secure MAC addresses are not autosaved to
the startup-config file.
BigIron RX Series Configuration Guide
53-1001810-01
Configuring the MAC port security feature
32
945