hi tim,
there are two possible 10Gbe mezzanine cards for roach2:
CX4: 3xCX4 connectors -
CX4 is old and hard to find NIC's, cables and switches.
SFP+: 4xSFP+ connectors -
SFP+ is the new standard for 10Gbe, and much more reliable,
you can purchase all kinds of copper and optical SFP+ cables,
for up to 80 km links (see for instance SFP+ transceivers at fiberstore.com)
SFP+ copper cables are available up to 10 meters.
i think active copper cables are available up to about 50 meters.
and there are tons of SFP+ switches and NIC's.
for CX4, it's still possible to purchase, but mostly as used stuff on ebay.
as john said, unless you have a bunch of old CX4 equipment,
it's better to use the SFP+ mezzanine board.
best wishes,
dan
On Mon, Feb 2, 2015 at 1:46 PM, Madden, Timothy J. <[email protected]>
wrote:
> Sorry in advance for dumb questions. I have been using Roach 1 for a
> few ye ars and like it. Now we have a Roach 2. I want to get the 10GB
> ethernet working.
>
> A few questions:
> What should I buy to plug into those holes on the back, where the
> mezzanine
> slots are?
> Can I use a fiber optic widget to plug in? Or do we have to use
> copper? Can
> we use Long fiber or the short
> fiber version of 10GB ethernet? Are there part numbers of what I
> should buy
> to stick into the back of the Roach 2 to allow 10GB Ethernet
> connection?
> What should I buy to plug into the linux box. I assume some fiber
> optic 10GB
> PCI -Express card but not sure.
> I am running Red Hat Linux. Any name brands and part numbers?
> Where do I get the latest libraries to download for roach 2. I did not
> attend
> the last Casper conference so I am not "hip" to the location.
>
> Thanks
> Tim Madden
> Argonne Lab
>
>
>
