Just a quick update on this topic. This seems to be related to the Intel X710 chipset on NIC cards. You can check this by running the lspci command:
[Expert@myFW:0]# lspci | grep X710
12:00.0 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 01)
12:00.1 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 01)
Instead of disabling LLDP on the switch side, you can also disable LLDP using ethtool, but note, this does not survive a reboot, so you'll need to add it to /etc/rc.local (I found sleeping for 20 seconds worked well before running the commands), but upgrades/HFs could overwrite this file, which makes it not ideal.
[Expert@myFW:0]# ethtool --show-priv-flags eth0 | grep lldp
disable-fw-lldp : off
[Expert@myFW:0]# ethtool --set-priv-flags eth0 disable-fw-lldp on
[Expert@myFW:0]# ethtool --show-priv-flags eth0
disable-fw-lldp : on
That said, I've received a HF for this issue so I don't have to worry about any of this disabling and it it worth asking for the hotfix to see if it works in your environment. I've also ask this be integrated into the code so a private HF isn't necessary.
One other note to all this is the firmware of the NIC itself. The ethtool private flag commands and the HF worked on firmware version 10.4.3 for my NIC cards, but I had some NIC cards that had firmware version 5.60 0x8000355f 1.1752.0, which neither the HF or the ethtool private flag commands worked on those interface. To fix this, I upgraded the NIC firmware using the SPP from HPE so they version was at 10.4.3 and voila.
[Expert@myFW:0]# ethtool -i eth2 | grep firmware
firmware-version: 5.60 0x8000355f 1.1752.0