Summary

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.