<div>
An interface can have a software-configured MAC address. &nbsp;This is displayed when you use the <b>show interface</b> command. &nbsp;The MAC address in brackets (bia 0016.47d3.ed8c) is the burned-in MAC address - the hardware-set value.
</div>


An interface can have a software-configured MAC address.  This is displayed when you use the show interface command.  The MAC address in brackets (bia 0016.47d3.ed8c) is the burned-in MAC address - the hardware-set value.

<div>
the Burned in MAC is what the manufacturer print on the Network Adapter Card.<br />
Where does the software-configured MAC address come from ?<br />

</div>


the Burned in MAC is what the manufacturer print on the Network Adapter Card.
Where does the software-configured MAC address come from ?


<div>
It could come from HSRP, bridge configuration, or any number of other features depending on configuration.
</div>


It could come from HSRP, bridge configuration, or any number of other features depending on configuration.

<div>
.... if the software MAC and burned-in MAC both match it means that the interface is using the burned-in MAC.
</div>


.... if the software MAC and burned-in MAC both match it means that the interface is using the burned-in MAC.

<div>
I happened to see this on the switch, there is no HSRP configured
</div>


I happened to see this on the switch, there is no HSRP configured

<div>
Can you post the config for the port?
</div>


<div>
<div class="content wysiwyg-content">
Can someone tell me why show interface command shows 2 mac addresses.Even though they are the same.?<br />
<br />
Hardware is EtherChannel, address is 0016.47d3.ed8c (bia 0016.47d3.ed8c)<br />
<br />
<br />
Thanks
</div>
</div>


Can someone tell me why show interface command shows 2 mac addresses.Even though they are the same.?

Hardware is EtherChannel, address is 0016.47d3.ed8c (bia 0016.47d3.ed8c)


Thanks

Interface Mac Addresses

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

Switches / Hubs

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.