Package ladvd

CDP/LLDP sender for UNIX

http://www.blinkenlights.nl/software/ladvd/

ladvd uses CDP / LLDP frames to inform switches about connected hosts, which
simplifies Ethernet switch management. Every 30 seconds it will transmit CDP/
LLDP packets reflecting the current system state. Interfaces (bridge, bonding,
wireless), capabilities (bridging, forwarding, wireless) and addresses (IPv4,
IPv6) are detected dynamically.

System Administration (Section 8)
ladvd
ladvd sends LLDP (Link Layer Discovery Protocol) advertisements on all available interfaces. This makes connected hosts visible on managed switches. By default...
ladvdc
ladvdc displays link layer advertisements received by ladvd(8) running in receive mode (via -a or -z). Optionally a list of protocols and/or interfaces can be...