Summary

Amendment 4 to Recommendation ITU-T G.997.1 (2009) contains the following additions:

����������� Change to the reporting of downstream crosstalk channel XLINds.

����������� Addition of the reporting of the upstream crosstalk channel XLINus.

����������� Management of SRA and SOS with retransmission.

����������� Addition of line parameter for maximum delay octet split between downstream and upstream direction.

����������� Addition of new HPE bandplans.