Hi Tom, Appreciate both of your comments. Perfectly timed video from Netflix too, thanks for pointing me towards it!
@Paul Wilkins <[email protected]> I think that's what confused me the most around deeper buffers. I get how they could help with burst absorption for applications which sometimes might contend with each other. But for an openconnect box (or other type of CDN) I can only assume North-South traffic is constantly going to be coming in thick and fast. No amount of buffering is going to fix what is essentially a big to little pipe scenario. The bigger buffers may come in useful for clocking (PPM) differences between like interfaces, but this would from what I understand only really help to make the benchmarks/marketing material look better. Thanks all! Regards, Jason. On Fri, 24 May 2019 at 23:31, Tom Paseka <[email protected]> wrote: > Timely presentation from Netflix On this exact topic. > https://ripe78.ripe.net/archives/video/128/ > > On Thu, May 23, 2019 at 7:52 AM Tom Paseka <[email protected]> wrote: > >> everything depends on your application and how you're moving traffic. >> >> if you lots of east-west flow (between equal speed interfaces, especially >> in many to one) you'll need buffers. If you're doing north to south traffic >> with interface change, you'll likely need buffers. >> >> The choice here might not have been for deep buffer, but for other >> capabilities (forwarding, route table size, etc). Dave mentions from a >> question there is no east-west traffic, everything is south-north. >> >> On Wed, May 22, 2019 at 5:46 AM Jason Leschnik <[email protected]> wrote: >> >>> Hi Noggers, >>> >>> I just finished watching the NANOG presentation of Netflix >>> openconnect[1], I noticed that their core switch of choice was an Arista >>> 7500E which is a deep buffer switch. I remember seeing a lot of comments >>> around buffer bloat for deep buffer switches. Would this be considered an >>> acceptable use case for this type of switch in the DC? >>> >>> Has anyone got experience with ideal switch types (shallow, deep >>> buffers) for edge CDN network deployments? >>> >>> [1] - https://www.youtube.com/watch?v=tbqcsHg-Q_o >>> >>> Regards, >>> Jason. >>> _______________________________________________ >>> AusNOG mailing list >>> [email protected] >>> http://lists.ausnog.net/mailman/listinfo/ausnog >>> >>
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