Reason for the draft
RFC 3276 needed to be updated or obsoleted in order to add support for G.shdsl.bis. The basic G.shdsl.bis enhancements consist of adding support for up to 4 wire pairs (8-wires) and increasing line rates. In addition, some objects were added to supplement the ability to manage a span.
The additional objects added were:
maximum attainable payload rate
actual payload rate
tip and ring reversal status
current activation state