The show lldp neighbors command shows information about LLDP neighbors.
The iDRAC that is in the PowerEdge MX compute sled produces LLDP topology packets that contain specific information that the SmartFabric Services engine uses to determine the physical network topology regardless of whether a switch is in Full Switch or SmartFabric mode.
When viewing the LLDP neighbors, the iDRAC MAC address in addition to the NIC MAC address of the respective mezzanine card are shown.
Z9664-1# show lldp neighbors
Loc PortID Rem Host Name Rem Port Id Rem Chassis Id
--------------------------------------------------------------------------------------
ethernet1/1/3:3 Broadcom Adv. Qua... 14:23:f2:21:dd:c0 14:23:f2:21:dd:c0
ethernet1/1/3:3 PowerEdge MX760c 38966X3 NIC.Mezzanine.1B-1-1 c8:4b:d6:93:29:47
ethernet1/1/3:4 Broadcom Adv. Qua... 14:23:f2:21:dd:c2 14:23:f2:21:dd:c2
ethernet1/1/3:4 PowerEdge MX760c 38966X3 NIC.Mezzanine.1B-3-1 c8:4b:d6:93:29:47
ethernet1/1/5:2 Broadcom BCM57508... 14:23:f2:bf:b8:30 14:23:f2:bf:b8:30
ethernet1/1/5:2 PowerEdge MX760c 38966X3 NIC.Mezzanine.1A-1-1 c8:4b:d6:93:29:47
ethernet1/1/11:1 Z9432-1 ethernet1/1/19:1 e8:b2:65:4e:8b:e8
ethernet1/1/30 Z9664-2 ethernet1/1/30 e8:b5:d0:02:21:00
ethernet1/1/31 Z9664-2 ethernet1/1/31 e8:b5:d0:02:21:00
mgmt1/1/1 Rack102-N2048 Gi1/0/23 28:f1:0e:f0:03:60