Configuring Static Addresses For Etherchannel Port Groups; Adding And Removing Secure Addresses - Cisco Catalyst 2950 Software Configuration Manual

Managing the MAC Address Table

Configuring Static Addresses for EtherChannel Port Groups

Follow these guidelines if you are configuring a static address to forward to ports in an EtherChannel
port group:
•
•

Adding and Removing Secure Addresses

A secure address is a manually entered unicast address or dynamically learnt address that is forwarded
to only one port per VLAN. If you enter a static address that is already assigned to another port, the
request will be rejected.
Secure addresses can be learned dynamically if the configured secure addresses do not reach the
maximum limit of the port.
Beginning in privileged EXEC mode, follow these steps to add a secure address:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3 switchport port-security
mac-address mac-address
Step 4 end
Step 5 show port-security
Beginning in privileged EXEC mode, follow these steps to remove a secure address:
Command
Step 1 configure terminal
Step 2
no switchport port-security
mac-address mac-address
Step 3
end
Step 4
show port-security
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For default source-based port groups, configure the static address to forward to all ports in the port
group to eliminate lost packets.
For destination-based port groups, configure the address to forward to only one port in the port
group to avoid the transmission of duplicate packets.
Purpose
Enter global configuration mode.
Identify a specific interface for configuration, and enter interface
configuration mode.
Add a secure address.
Return to privileged EXEC mode.
Verify your entry.
Purpose
Enter global configuration mode.
Remove a secure address.
Return to privileged EXEC mode.
Verify your entry.
Chapter 7 Administering the Switch
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