Any expert can help to explain mac-address-table ?

Hi, Please see below, which is show mac-address table. Can you explain what Router means in the table and why it is dynamic or static ? Thank you

C6509#sh mac-address-table | section 0000.0c07.ac00

*   6  0000.0c07.ac00   dynamic  Yes          0   Po11
*   7  0000.0c07.ac00    static  No           -   Router
*   6  0000.0c07.ac00   dynamic  Yes          0   Po11
*   6  0000.0c07.ac00    static  No           -   Router
*   3  0000.0c07.ac00    static  No           -   Router
   11  78e1.b511.2827   dynamic  Yes          5   Te9/8
eemoonAsked:
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Craig BeckCommented:
Dynamic means the switch learned the MAC address from another device.

Static with router means that MAC address is actually belonging to the switch you're looking at (a C6500 is classed as a router in IOS).

If you see static with an interface that means you configured the MAC to IP statically on the switch.

We can tell from your output that you're running HSRP and that the neighbour switch is connected via Port-Channel11.  We can also see that device with MAC 78e1.b511.2827 is reachable via port Te9/8.
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eemoonAuthor Commented:
craigbeck, Thank you so much for your fast reply. I am sorry for the delay due to another project.

Static with router means that MAC address is actually belonging to the switch you're looking at (a C6500 is classed as a router in IOS).
If you see static with an interface that means you configured the MAC to IP statically on the switch.

I cannot understand why one same mac address "0000.0c07.ac00" is listed as dynamic and static, and Po11 and Router in show mac-address-table ?
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Craig BeckCommented:
HSRP v1 uses MAC address 0000.0c07.ac00 through to 0000.0c07.acff.  The last octet (00 - FF) identifies the HSRP group number.

As an example, if you have used standby 1 ip x.x.x.x on each interface or SVI the MAC address for the standby IP will be 0000.0c07.ac01.  Similarly, if you used standby 255 ip x.x.x.x the MAC address for the standby IP would be 0000.0c07.acff

However, if you use no group number, so you use standby ip x.x.x.x on each interface the MAC address for the standby IP is designated as group 0, so 0000.0c07.ac00

The reason that the MAC is both dynamic and static is because you are running HSRP on the other C6500 too.  The following is true...

a] The local switch has that MAC statically set (via the interface that the standby IP is configured on).
b] The MAC address is also being learned via the PortChannel to your other C6500 as it exists on the neighbor switch during the learning process to determine which switch is active and which is standby.
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eemoonAuthor Commented:
Excellent explanation! You explained why there are two kinds of mac address which are static and dynamic, but I am still asking why there are two dynamic mac address and two static mac address in one 6500 ?
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Craig BeckCommented:
It looks like you have HSRP configured on two different VLANs, so you'll see the HSRP MAC address on both.
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