Thanks. I'm very interested to see what he says.I wouldn't expect the fact that VDSL2 is or isn't TDMA to have an affect on per packet/frame overhead but I'm not an expert on low level stuff like this.
Well the reason why I mentioned TDMA is because a padded frame will "waste" upstream time slots (e.g. on a DOCSIS network), although on DOCSIS it really doesn't make a difference. Looking forward to tomorrow.