Open-LLDP, with lldpad (LLDP Agent Daemon) is a GPL licensed implementation of the Link Layer Discovery Protocol for Linux.
The lldpad package comes with utilities to manage an LLDP interface with support for reading and configuring TLVs. TLVs and interfaces are individual controlled allowing flexible configuration for TX only, RX only, or TX/RX modes per TLV.
Open-LLDP (lldpad) is packaged with many distributions and rpm packages can be installed using distribution tools.
These details are provided for information only. No information here is legal advice and should not be used as such.