TP-Link T1500-28TC TL-SL2428 T1500-28TCUN V1 Configuration Guide - Page 105

Switchconfig-if#mac address-table max-mac-count max-number

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Managing Physical Interfaces Port Security Configuration Step 3 Step 4 Step 5 Step 6 mac address-table max-mac-count { [max-number num] [mode { dynamic | static | permanent } ] [ status { forward | drop | disable } ] } Enable the port security feature of the port and configure the related parameters. num: The maximum number of MAC addresses that can be learned on the port. The valid values are from 0 to 64. The default value is 64. mode: Learn mode of the MAC address. There are three modes: dynamic: The switch will delete the MAC addresses that are not used or updated within the aging time. static: The learned MAC addresses are out of the influence of the aging time and can only be deleted manually. The learned entries will be cleared after the switch is rebooted. permanent: The learned MAC address is out of the influence of the aging time and can only be deleted manually. The learned entries will be saved even the switch is rebooted. status: Status of port security feature. By default, it is disabled. drop: When the number of learned MAC addresses reaches the limit, the port will stop learning and discard the packets with the MAC addresses that have not been learned. forward: When the number of learned MAC addresses reaches the limit, the port will stop learning but send the packets with the MAC addresses that have not been learned. disable: The number limit on the port is not effective, and the switch follows the original forwarding rules. It is the default setting. show mac address-table max-mac-count interface { fastEthernet port | gigabitEthernet port } Verify the Port Security configuration and the current learned MAC addresses of the port. end Return to privileged EXEC mode. copy running-config startup-config Save the settings in the configuration file. The following example shows how to set the maximum number of MAC addresses that can be learned on port 1/0/1 as 30 and configure the mode as permanent and the status as drop: Switch#configure Switch(config)#interface fastEthernet 1/0/1 Switch(config-if)#mac address-table max-mac-count max-number 30 mode permanent status drop Switch(config-if)#show mac address-table max-mac-count interface fastEthernet 1/0/1 Port Max-learn Current-learn Mode Status ---- --------- ----------- ------ ------ Fa1/0/1 30 0 permanent drop Switch(config-if)#end Switch#copy running-config startup-config Configuration Guide 84

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Configuration Guide
84
Managing Physical Interfaces
Port Security Configuration
Step 3
mac address-table max-mac-count { [max-number
num
] [mode
{ dynamic | static |
permanent }
] [ status
{ forward | drop | disable }
] }
Enable the port security feature of the port and configure the related parameters.
num
:
The maximum number of MAC addresses that can be learned on the port. The valid
values are from 0 to 64. The default value is 64.
mode
: Learn mode of the MAC address. There are three modes:
dynamic
: The switch will delete the MAC addresses that are not used or updated within the
aging time.
static
: The learned MAC addresses are out of the influence of the aging time and can only
be deleted manually. The learned entries will be cleared after the switch is rebooted.
permanent
: The learned MAC address is out of the influence of the aging time and can only
be deleted manually. The learned entries will be saved even the switch is rebooted.
status
: Status of port security feature. By default, it is disabled.
drop
: When the number of learned MAC addresses reaches the limit, the port will stop
learning and discard the packets with the MAC addresses that have not been learned.
forward
: When the number of learned MAC addresses reaches the limit, the port will stop
learning but send the packets with the MAC addresses that have not been learned.
disable
: The number limit on the port is not effective, and the switch follows the original
forwarding rules. It is the default setting.
Step 4
show mac address-table max-mac-count interface { fastEthernet
port
| gigabitEthernet
port
}
Verify the Port Security configuration and the current learned MAC addresses of the port.
Step 5
end
Return to privileged EXEC mode.
Step 6
copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to set the maximum number of MAC addresses that can
be learned on port 1/0/1 as 30 and configure the mode as permanent and the status as
drop:
Switch#configure
Switch(config)#interface fastEthernet
1/0/1
Switch(config-if)#mac address-table max-mac-count max-number
30
mode
permanent
status
drop
Switch(config-if)#show mac address-table max-mac-count interface fastEthernet
1/0/1
Port
Max-learn
Current-learn
Mode
Status
----
---------
-----------
------
------
Fa1/0/1
30
0
permanent
drop
Switch(config-if)#end
Switch#copy running-config startup-config