Re: scaling linux-based router hardware recommendations

[Robert Bays <robert () gdk org>]

I was trying not to pitch my company on list, but the performance numbers I quoted are on the Vyatta/Brocade vRouter 
which is commercially available.  Other vendors also also have publicly available performance numbers that are 
interesting.


> On Jan 28, 2015, at 5:02 AM, Paul S. <contact () winterei se> wrote:
>
> That's the problem though.
>
> Everyone has presentations for the most part, very few actual tools that 
> end users can just use exist.
>
> On 1/28/2015 午後 08:02, Robert Bays wrote:
> > > On Jan 27, 2015, at 8:31 AM, Jim Shankland <nanog () shankland org> wrote:
> > >
> > > My expertise, such as it ever was, is a bit stale at this point, and my
> > > figures might be a little off. But I think the general principle
> > > applies: think about the minimum number of x86 instructions, and the
> > > minimum number of main memory accesses, to inspect a packet header, do a
> > > routing table lookup, and enqueue the packet on an outbound interface. I
> > > can't see that ever getting reduced to the point where a generic server
> > > can handle 40-byte packets at line rate (for that matter, "line rate" is
> > > increasing a lot faster than "speed of generic server" these days).
> > Using DPDK it’s possible to do everything stated and achieve 10Gbps line rate at 64byte packets on multiple 
> > interfaces simultaneously.  Add ACLs to the test setup and you can reach significant portions of 10Gbps at 64byte 
> > packets and full line rate at 128bytes.
> >
> > Check out Venky Venkatesan’s presentation at the last DPDK Summit for interesting information on pps/CPU cycles and 
> > some of the things that can be done to optimize forwarding in a generic processor environment.
> >
> > http://www.slideshare.net/jstleger/6-dpdk-summit-2014-intel-presentation-venky-venkatesan