Cisco Switch Mac Address-Table

Why do cisco switch add static mac addresses to the mac address-table? shouldn´t they be dynamic?
Amilcar MoraisAsked:
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Alex BaharCommented:
Whether static or dynamic all MAC addresses should exist in the MAC address table. Basically it is a database of all mac addresses.

Similarly all static and dynamic routes exist in the routing table.
To see only dynamically learned MAC addresses you can use command
#show mac-address-table dynamic
Static entries are for directly attached interfaces (virtual or physical).
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Joey YungSenior Network EngineerCommented:
For the NLB multicast setup, some case is required to create static MAC address entry
Amilcar MoraisAuthor Commented:
Actually i just figure it out. It's because of port-security.
Amilcar MoraisAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for arcmorais's comment #a41191447

for the following reason:

Best solution
Alex BaharCommented:
Switch adds both static and dynamic MAC addresses to the table. MAC addresses are used for switching them at layer 2. Switch port security is just a feature that uses the Mac addresses in the table. it's not the main reason for storing Mac addresses in the Mac address table.

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