> > Furthermore, I learned that a couple of 10G switch vendors are planning to > > have up to 4 GB of buffer RAM in their next generation of switches. So we > > are not talking about thousands of packets in the buffer, but of millions > > of > > packets (think of up to 400ms buffering if only a single 10G egress port is > > being loaded in such a switch). Compared to the base RTT of a 10G network > > (a > > few tens of microseconds, some vendors go even below a microsecond), this > > is > > even more extreme than the home router / DSLAM scenario... > > > > The stuff for the future involves getting to the designers and getting > them to understand the situation they're putting the rest of the net in > while they play their pissing games with marketing (is there any other > reason for 4 GB of buffer in any switch?), etc. That and getting the > basic research done, measurement facilities in place, and long-term > methodologies to really fix the problem "forever".
4GB shared across N ports no? And 10GBASE-ER can go 40 km. Where might pause and FCoE wedge into this? rick jones _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
