The VDSL-LINE-MIB found in RFC 3728 defines objects for the
management of a pair of VDSL transceivers at each end of the VDSL
line.  The VDSL-LINE-MIB configures and monitors the line code
independent parameters (TC layer) of the VDSL line.  This MIB
module is an optional extension of the VDSL-LINE-MIB and defines
objects for configuration and monitoring of the line code specific
(LCS) elements (PMD layer) for VDSL lines using SCM coding.  The
objects in this extension MIB MUST NOT be used for VDSL lines
using Multiple Carrier Modulation (MCM) line coding.  If an object
in this extension MIB is referenced by a line which does not use
SCM, it has no effect on the operation of that line.

Naming Conventions:

   Vtuc -- VDSL transceiver at near (Central) end of line
   Vtur -- VDSL transceiver at Remote end of line
   Vtu  -- One of either Vtuc or Vtur
   Curr -- Current
   Atn  -- Attenuation
   LCS  -- Line Code Specific
   Max  -- Maximum
   Mgn  -- Margin
   PSD  -- Power Spectral Density
   Rx   -- Receive
   Snr  -- Signal to Noise Ratio
   Tx   -- Transmit

Copyright (C) The Internet Society (2005).  This version
of this MIB module is part of RFC 4069: see the RFC
itself for full legal notices.