Identify the cabling connecting switches and different network equipment

Different network equipements (eg. F5, Mcafee IDPS) are connected to Cisco switches / routers. On cisco, how to show these mac address for these equipement.

eg. Some firewall appliance have different ports connecting to different port in Cisco. Does each interface has unique MAC address ? How to find out the mac address for these device ?


Alternatively ,is there a good way to identify the connection for these equipement ? The current cabling is messy and physically, it is very difficuly to identify the physical connection...
AXISHKAsked:
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Fred MarshallPrincipalCommented:
A managed switch will have a mac address table which shows the current list of mac addresses attached to each port.

So, in a star configuration, most switch ports will show a single MAC address.
(MAC addresses are unique for each device/NIC/port).
But, a common port (e.g. one going to a backbone cable to another switch that's cascaded) will show all the MAC addresses associated with that cable / upstream port.

It's likely you can find what you want.
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Aaron TomoskySD-WAN SimplifiedCommented:
I don't know the command but lldp or cdp is what shows the Mac of the connected device.
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giltjrCommented:
On Cisco switches the command to show the mac address table the command is one of the two:

show mac address-table
show mac-address-table

Most switches will use the 1st one, The 6500's use the second format.   You will need to know the port that the device you what to know the mac address of.
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Fred MarshallPrincipalCommented:
Probably a typo:
You will need to know the MAC address of the devices/NICs in order to determine which switch port they are connected to.
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