The LLDP spec (IEEE 802.1AB) requires the three mandatory TLVs (Chassis ID, Port ID, and TTL) to be the first three TLVs in the packet, in that specific order, whereas systemd put the TTL near the end of the packet. This violation caused the ethernet switch in our office to discard these packets as malformed, and Wireshark's packet parser also chokes on them. (cherry picked from commit b0221bb6a468e84841ad366ff39dcc4de97dc5db)
System and Service Manager
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