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

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

Hi all. Does the current ROACH-2 10 gbe yellow block work for multicast transmit? Does anyone have an example of use of it, if so? Thanks! John

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

Hi John, It works great! Transmit only is happily also the simplest use case. If you're doing stuff from the powerPC which you want multicasting, I believe you have to invoke corr.katcp_wrapper.FpgaClient.tap_multicast_add_send(). If you only want to multicast traffic from the FPGA (which is how

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

> Hi, John. > > 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 clues. > >