[openstack-dev] [Neutron] High bandwidth routers

CARVER, PAUL pc2929 at att.com
Mon Jun 23 13:21:28 UTC 2014

Is anyone using Neutron for high bandwidth workloads? (for sake of discussion let's "high" = "50Gbps or greater")

With routers being implemented as network namespaces within x86 servers it seems like Neutron networks would be pretty bandwidth constrained relative to "real" routers.

As we start migrating the physical connections on our physical routers from multiple of 10G to multiples of 100G, I'm wondering if Neutron has a clear roadmap towards networks where the bandwidth requirements exceed what an x86 box can do.

Is the thinking that x86 boxes will soon be capable of 100G and multi-100G throughput? Or does DVR take care of this by spreading the routing function over a large number of compute nodes so that we don't need to channel multi-100G flows through single network nodes?

I'm mostly thinking about WAN connectivity here, video and big data applications moving huge amounts of traffic into and out of OpenStack based datacenters.

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