On Tue, Feb 9, 2016 at 7:06 AM, Tony Finch <dot@xxxxxxxx> wrote: > Phillip Hallam-Baker <phill@xxxxxxxxxxxxxxx> wrote: >> >> Maybe what we needed all along was a better TCP that allowed data to >> be sent on the first packet. >> >> That is what people keep seeming to re-invent. >> >> Another of those cases where people keep telling me that there are >> good reasons not to do that but don't ever get round to explaining >> what they are. > > http://roland.grc.nasa.gov/tcp-impl/list/archive/1292.html > > But I thought TCP fast open https://tools.ietf.org/html/rfc7413 > fixed the design errors in T/TCP, so is it still considered a bad idea? Perhaps it does. But as I said, it only counts as solved when it is in the stacks I can use. And no, Linux doesn't count.