On Thu, Aug 5, 2010 at 3:21 PM, Matt Dexter <[email protected]> wrote: > Hi Tom, > > were you aware of these ? > http://casper.berkeley.edu/wiki/Recommended_10_GbE_Hardware
Sadly the list is out of date: some of the switches are no longer in production. The XG700, for example, is great and cheap but you can't buy one without great difficulty. I'm not sure that manufacturers really care about CX4 anymore now that SFP+ parts are available. --Andy > http://casper.berkeley.edu/wiki/Equipment_Cables > Matt Dexter > > On Thu, 5 Aug 2010, Tom Downes wrote: > >> Casper-folks: >> >> Hoping to short-circuit a fair amount of research here in the hope >> that someone has had to do this already. I'll soon be looking to >> connect 10-20 ROACH boards by 10 gbe to a data acquisition >> computer(s). >> >> It seems like the smartest way of doing that is getting a 16-port >> switch or potentially two 8-port switches. But the 10 Gbe port on the >> ROACH seems to be CX4 which I take to be a less popular connector >> variety. >> >> What kind of switches have ROACH users out there used to connect up a >> bunch of boards? Are there switches out there to convert CX4 to >> something with a reach longer than the 15m Wikipedia quotes as the >> limit of CX4. 15m is very borderline for our needs. >> >> The prices seem to vary widely. We do not need network admin tools or >> anything fancy. In fact our data rates could probably go over 10Mb >> cabling, but the 10Gbe interface of the ROACH is more convenient from >> the firmware perspective. This is more of a multiplexer than a switch. >> >> Tom >> >> > >
