LLDP neighbors are detected via eth4 and eth5, but when calling the interface explicitly neighbors are gone.
vyos@vyos# run show lldp neighbors
Capability Codes: R - Router, B - Bridge, W - Wlan r - Repeater, S - Station
D - Docsis, T - Telephone, O - Other
Device ID Local Proto Cap Platform Port ID
--------- ----- ----- --- -------- -------
SW1 eth4 LLDP B USW-24 4.3.20.11298 1000Mbit_fdx_FiberSX Trunk __ C
CR1 eth5 LLDP R VyOS 1.3-rolling-202 Core: to CR2vyos@vyos# run show lldp neighbors interface eth4
Capability Codes: R - Router, B - Bridge, W - Wlan r - Repeater, S - Station
D - Docsis, T - Telephone, O - Other
Device ID Local Proto Cap Platform Port ID
--------- ----- ----- --- -------- -------vyos@vyos# run show lldp neighbors interface eth5
Capability Codes: R - Router, B - Bridge, W - Wlan r - Repeater, S - Station
D - Docsis, T - Telephone, O - Other
Device ID Local Proto Cap Platform Port ID
--------- ----- ----- --- -------- -------