Thanks for sharing. Yes - I have heard of some folks using Mellanox cards. But, I was more curious about use of Intel FM10000 series - FM10420 and FM10840 chipset which Silicom and I think Lanner also has these cards with OVS.
Thanks On Fri, Nov 2, 2018 at 4:35 AM <adamv0...@netconsultings.com> wrote: > Thank you very much for the slides, > > Hmm the presentation doesn’t actually have much detail on why the upper > bound is ~30G (I guess per port), well with 6 cores anyways, using the slow > x86 path. > > > > So is the point you’re trying to make that above 40G per port one needs to > enter the realm of “smart” NICs please > > If true then I’d be interested in how do these differ from the say > P4/Tofino like chips. > > I guess that’s the realm where I’d be limited in terms of available OVS > features to only those for which a HW acceleration is available on the NIC > –is that assumption correct please? > > > > adam > > > > netconsultings.com > > ::carrier-class solutions for the telecommunications industry:: > > > > *From:* Joel Wirāmu Pauling [mailto:j...@aenertia.net] > *Sent:* Friday, November 02, 2018 9:40 AM > *To:* adamv0...@netconsultings.com > *Cc:* Shivaram Mysore; ovs-discuss@openvswitch.org > *Subject:* Re: [ovs-discuss] 100G with OvS > > > > Have a look at : > > > > https://m.youtube.com/watch?v=MglrK-JTiqc > > > > Disclaimer I worked for Nuage at the time that was done, and work for > Redhat now. > > > > > > > > On Fri, 2 Nov 2018, 22:23 <adamv0...@netconsultings.com wrote: > > > boun...@openvswitch.org] On Behalf Of Joel Wiramu Pauling > > Sent: Thursday, November 01, 2018 10:29 PM > > > > Currently - doing slow-path through commodity x86 silicon you are pretty > > much capped at 40gbit; so beyond a few use cases where you are say > > writting to an NVME array directly within minimal CPU interaction 100G to > > nodes is relatively limited. I've read several relatively good analysis > which > > indicate that we are close to physical limits when we hit around 130Gbit > with > > Ethernet ; but currently 40Gbit through existing x86_64 architectures is > about > > spot on. > > > Hi Joel, > > Thank you very much for the info, > > I assume this limit is per physical NIC is that the case please? > (I'm wondering if I'd get a ~100Gbps worth of throughput (100G in + 100G > out) through the system as a whole -i.e. multiple interfaces, essentially > turning it into an OVS-router. > > Would you please share what is the limiting factor? > (just found that PCIe 3.0 x16 should be capped at 126.075Gbps usable BW; > DDR3-2133 @ ~136.5Gbps and Intel® Xeon® Processor E5 Family it's 372.8 > Gbps) > > Thakn you very much > > adam > > netconsultings.com > ::carrier-class solutions for the telecommunications industry:: > >
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