Yes - it's only really possible with Vendor offload tricks i.e ASAP2 on the Mellanox X5 works well for 100G on commodity silicon.
You will need an OVS and Kernel stack that support said offload tricks. 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. 25Gbit is a sweet spot because you can actually do processing of things on the CPU's anything higher and you might as well go to purpose built switch infra and you can do it without Vendor offload tricks like ASAP2/DPDK which remove the ability of the kernel having meaningful interaction with the flow. -Joel On Fri, 2 Nov 2018 at 11:12, Shivaram Mysore <[email protected]> wrote: > > Hello, > Has anyone used 100G with OvS? I am specifically interested about > experiences with PE3100G2DQIR Server Adapter > (https://www.silicom-usa.com/pr/server-adapters/networking-adapters/100-gigabit-ethernet-networking-server-adapters/pe3100g2dqir_server_adapter/) > running on OvS and Ubuntu Linux. > > Thanks > > /Shivaram > _______________________________________________ > discuss mailing list > [email protected] > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss _______________________________________________ discuss mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
