justone,
"As noted, I''ve been looking at how gigabit ethernet, or any collision detection scheme, or any network protocol can handle multi-everything traffic."
If I may, to the best of my knowledge 1 GbE and 10 GbE will not be employed, except in some rare applications at the 1 Gb rate (whose specifics I am unaware of), in collision domains, per se. Instead, as noted above by Curtis and later, me, 1 Gb and 10 Gb are, and will continue to be, for the most part, "switched", not shared. Hence, the devices which use them will enjoy many of the benefits of dedicated point-to-point connections, subject to buffering and backpressure, i.e., flow controls, when statistically-driven conditions dictate.
For this reason the 10 Gb flavor's greatest utility for the foreseeable future (until a majority of ships rise to the 10 Gb watermark, and then 100 Gb will likely substitute the 10) will be in pipelining, backboning and aggregation, as a form of point-to-point protocol between network nodes and switches. In the case of 1 Gb, between relatively high capacity end nodes and servers, and network backbones that do not yet warrant 10 Gb speeds.
Collision techniques have been relegated to the lower speed Ethernets, such as those which have not been upgraded from 10 Mb/s and 100 Mb/s shared hubs (even these have variations that are switched, but the shared hubs are the ones you are referring to), and in rarer instances, actual coaxial bus architectures.
FAC |
