Re: [casper] Timing Errors ROACH2

Hi Amit, FYI, I am CC'ing the CASPER list on all of these emails, so that they can be searchable for people in the future. The placements I gave you were for my personal design, and may not work for yours. When choosing pblock size, be sure to look at the pblock utilization in planahead.

Re: [casper] Multicast on 10 gbe on ROACH-2?

David MacMhaon wrote: >> I think multicast transmit is easy (just populate the ARP table >> appropriately). I think multicast receive is also supported with recent >> versions of the 10GbE yellow block. You could probably check the >> mlib_devel git commit logs for the yellow block code to find

Re: [casper] Multicast on 10 gbe on ROACH-2?

Marc is correct. The ARP table is not involved in multicast. The multicast MAC is just mapped from the multicast IP. Wesley New South African SKA Project +2721 506 7300 www.ska.ac.za On Thu, Nov 5, 2015 at 12:51 PM, Marc Welz wrote: > David MacMhaon wrote: > > >> I think

Re: [casper] Multicast on 10 gbe on ROACH-2?

Thanks, All! John > Marc is correct. The ARP table is not involved in multicast. The multicast > MAC is just mapped from the multicast IP. > > Wesley New > South African SKA Project > +2721 506 7300 > www.ska.ac.za > > > > On Thu, Nov 5, 2015 at 12:51 PM, Marc Welz wrote: > >>

Re: [casper] Multicast on 10 gbe on ROACH-2?

As I think Jack commented, I was remembering an old trick that predated multicast support in the core. > On Nov 5, 2015, at 02:51, Marc Welz wrote: > > Not sure if the arp table is involved in this - the destination mac is > (should be) > generated algorithmically from the