The MIB module defining objects for the management of a pair of VDSL transceivers at each end of the VDSL line. Each such line has an entry in an ifTable which may include multiple transceiver lines. An agent may reside at either end of the VDSL line. However, the MIB is designed to require no management communication between them beyond that inherent in the low-level VDSL line protocol. The agent may monitor and control this protocol for its needs. VDSL lines may support optional Fast or Interleaved channels. If these are supported, additional entries corresponding to the supported channels must be created in the ifTable. Thus a VDSL line that supports both channels will have three entries in the ifTable, one for each physical, fast, and interleaved, whose ifType values are equal to vdsl(97), fast(125), and interleaved(124), respectively. The ifStackTable is used to represent the relationship between the entries. Naming Conventions: Vtuc Vtur Vtu Curr Prev Atn ES SES UAS LCS Lof Lol Los Lpr xxxs (e.g., xxx = Lof, Los, Lpr, Lol) Max Mgn Min Psd Snr Tx Blks Copyright (C) The Internet Society (2003). This version of this MIB module is part of RFC XXXX: see the RFC itself for full legal notices.