Link Layer Topology Discovery (LLTD) Protocol
- the Link Layer Topology Discovery (LLTD) Protocol is a proprietary Microsoft protocol that facilitate discovery of link-layer topology and diagnose of various problems.
The MS-LLTD specification can be found on Windows Rally Development Kit
Latest specification can be found in Windows communication protocols
An under development dissector can be found at http://hg.starox.org/wireshark_lltd/ (against Wireshark 1.0.4)