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Static and dynamic mac addresses

Andy White
Level 3
Level 3

Hello,

I just need a refresher here, I have  a few PC plugged in to a switch and when I do  show mac-address-table some ports are dynamic and some are static, why are some static?

I have this configured on all ports:

switchport mode access

switchport port-security

switchport port-security aging time 1

switchport port-security aging type inactivity

spanning-tree portfast

spanning-tree bpduguard enable

What makes one port dynamic and one static as the ports are configured the same?

Thanks

1 Reply 1

rfalconer.sffcu
Level 3
Level 3

What is the MAC entry on the static? Sometimes the statics are HSRP MAC addresses and others are used for IPv6 multicast.

You can check HSRP with sh standby vlan x and look at the MAC address to see if it matches the static entry.

The IPv6 multicast start with 3333.

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