Recommendation ITU-T G.997.1 specifies:
– the physical layer management for asymmetric digital subscriber line (ADSL) and very high
speed digital subscriber line 2 (VDSL2) transmission systems;
– means of communication on a transport transmission channel defined in the physical layer
(see Recommendations ITU-T G.992.1, ITU-T G.992.2, ITU-T G.992.3, ITU-T G.992.4,
ITU-T G.992.5 and ITU-T G.993.2;
– network element (NE) content and syntax for configuration, fault and performance
management.
This edition of Recommendation ITU-T G.997.1:
• includes the management information base (MIB) elements for the physical layer management
of Recommendation ITU-T G.993.2 and additional MIB elements for the physical layer
management of Recommendations ITU-T G.992.3 and ITU-T G.992.5;
• adds support for Annex N of ITU-T G.993.2 power spectral density (PSD) masks;
• adds support of maximum error-free throughput (MAXEFTR) and extends the specification
of error-free bits counter and minimum error-free throughput (MINEFTR) the parameters to
apply to lines with retransmission inactive