10-15-2012 02:19 AM - edited 03-07-2019 09:27 AM
show cdp neighbors command shows two devices connected through the same local port?
I have a Cisco 3560 that when I issue the "show cdp neighbors" command I get the following results:
Switch1#show cdp neighbors
Device ID Local Intrfce Holdtme Capability Platform Port ID
Switch2 Gig 0/3 169 S I WS-C3560-4Gig 0/4
Switch3 Gig 0/3 96 S I WS-C3560-4Gig 0/2
the question is why is this showing that Gig0/3 is being used twice to connect to two different devices. I have verified there is no hub connected to this port and in fact Switch3 is not connected to Switch1 at all yet it still shows up in the CDP table.
I have cleared the CDP table on every device at this location and still get the same results. Any ideas or thoughts?