dynamic / static MAC address

Unanswered Question
Feb 23rd, 2007

what is the difference between a 'dynamic' and 'static' MAC address when using "show mac-address-table".

I have this problem too.
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v-yelmene Fri, 02/23/2007 - 13:27

thanks. What I am looking for is an explanation of why these multicast addresses show up from a "show mac-address" but no dynamic address appears.

Static Address Table:

Destination Address VLAN Input Port Output Ports

------------------- ---- ---------- -----------------------

0100.5e00.0118 40 Fa0/33 Gi0/1

0100.5e00.013c 40 Fa0/33 Fa0/8 Fa0/41 Gi0/1

0100.5e00.017f 40 Fa0/33 Fa0/11 Fa0/24 Fa0/23 Gi0/1

0100.5e01.0026 40 Fa0/33 Gi0/1

0100.5e7f.fffa 40 Fa0/33 Fa0/11 Fa0/24 Fa0/23 Fa0/39

Fa0/41 Gi0/1

0100.5e7f.fffd 40 Fa0/33 Fa0/11 Fa0/24 Fa0/23 Gi0/1

0100.5e7f.fffe 40 Fa0/33 Gi0/1

Non-static Address Table:

Destination Address Address Type VLAN Destination Port

------------------- ------------ ---- --------------------

0030.4880.d3d8 Dynamic 40 FastEthernet0/45

Static Address Table:

Destination Address VLAN Input Port Output Ports

------------------- ---- ---------- -----------------------

0100.5e00.0118 40 Fa0/45 Gi0/1

0100.5e00.013c 40 Fa0/45 Fa0/8 Fa0/41 Gi0/1

0100.5e00.017f 40 Fa0/45 Fa0/11 Fa0/24 Fa0/23 Gi0/1

0100.5e01.0026 40 Fa0/45 Gi0/1

0100.5e7f.fffa 40 Fa0/45 Fa0/11 Fa0/24 Fa0/23 Fa0/39

Fa0/41 Gi0/1

0100.5e7f.fffd 40 Fa0/45 Fa0/11 Fa0/24 Fa0/23 Gi0/1

0100.5e7f.fffe 40 Fa0/45 Gi0/1

ahmednaas Fri, 02/23/2007 - 13:47

What model switch?

Are you running any multicast services on your network?

What is your environment? is this an access/distribution/core switch? what is connected to it?

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