Intel 25G E810 kernel ice driver does not work with LLDP
driver: ice version: 1.11.14 firmware-version: 4.30 0x8001af27 1.3429.0 expansion-rom-version: bus-info: 0000:02:00.0
Also, it could cause of tx_errors counter to increase.
https://community.intel.com/t5/Ethernet-Products/E810-C-does-not-forward-lldp/td-p/1268044
Possible fix do not use kernel ice driver and use the more recent
https://sourceforge.net/projects/e1000/files/ice%20stable/1.13.7/
https://www.intel.com/content/www/us/en/download/19630/intel-network-adapter-driver-for-e810-series-devices-under-linux.html