Hi Jan At this time, there are no plans for a 40G card for ROACH2.
You could use four 10G streams into a switch and then from the switch into a 40G card (we do this now), or you could try something like a quad-port 10G card: http://www.chelsio.com/nic/t5-unified-wire-adapters/t540-cr/ for direct connection to a ROACH-2. ROACH-3 prototypes have demonstrated working 40G QSFP+, but this will only be available on ROACH-3, not ROACH-2. Jason Manley CBF Manager SKA-SA Cell: +27 82 662 7726 Work: +27 21 506 7300 On 07 May 2015, at 8:02, Jan Wagner <[email protected]> wrote: > Hi list, > > there are some plans for another hybrid (hw/sw) wideband > spectrometer and multi-beam correlator. Data input is the main > issue, options are network attached samplers versus PCIe cards. > > Has any casperite by chance been working on 40 Gbps? > > Might it be possible to have Roach2 CX4 run at 40 GbE and interface > to Infiniband cards? > > Or would this require the HXT version of Virtex-6 (in addition to > probably extra work on the ten_gbe core)? > > cheers, > Jan > >
