Re: [Bloat] [Cerowrt-devel] DC behaviors today

(Awesome development - I have a computer with a sane e-mail client again. One that doesn’t assume I want to top-post if I quote anything at all, *and* lets me type with an actual keyboard. Luxury!) >> One of the features well observed in real measurements of real systems is >> that packet

Re: [Bloat] [Cerowrt-devel] DC behaviors today

Please - my email was not an intention to troll - I wanted to establish a dialogue, I am sorry if I’ve offended. > On 13 Dec 2017, at 18:08, dpr...@reed.com wrote: > > Just to be clear, I have built and operated a whole range of network > platforms, as well as diagnosing problems and planning

Re: [Bloat] [Cerowrt-devel] DC behaviors today

Just to be clear, I have built and operated a whole range of network platforms, as well as diagnosing problems and planning deployments of systems that include digital packet delivery in real contexts where cost and performance matter, for nearly 40 years now. So this isn't only some kind of

Re: [Bloat] [Cerowrt-devel] DC behaviors today

> Have you considered what this means for the economics of the operation of networks? What other industry that “moves things around” (i.e logistical or similar) system creates a solution in which they have 10x as much infrastructure than their peak requirement? Ten times peak demand? No. Ten

Re: [Bloat] [Cerowrt-devel] DC behaviors today

> On 12 Dec 2017, at 22:53, dpr...@reed.com wrote: > > Luca's point tends to be correct - variable latency destroys the stability of > flow control loops, which destroys throughput, even when there is sufficient > capacity to handle the load. > > This is an indirect result of Little's Lemma

Re: [Bloat] benefits of ack filtering

Hi Mikael, > On Dec 13, 2017, at 10:46, Mikael Abrahamsson wrote: > > On Wed, 13 Dec 2017, Jonathan Morton wrote: > >> the uplink shaper is set to about a fiftieth of that. I seriously doubt >> that DOCSIS is ever inherently that asymmetric. > > Well, the products are,

Re: [Bloat] benefits of ack filtering

Okay, from the tables on that page, it seems that the most asymmetric maximal configuration is below 8:1. That's in line with what you'd expect given transmit power and thus SNR differences. Hence no legitimate reason to provision at 42:1 and above... - Jonathan Morton

Re: [Bloat] benefits of ack filtering

> On Dec 13, 2017, at 11:03, Jonathan Morton wrote: > > Forgive my ignorance, but does each channel have the same capacity in both > directions in DOCSIS? A quick look at https://en.wikipedia.org/wiki/DOCSIS seems to reveal that there typically is higher capacity for

Re: [Bloat] [Cerowrt-devel] DC behaviors today

+1 on all. Except that Little's Law is very general as it applies to any ergodic process. It just derives from the law of large numbers. And BTW, Little's law is a very powerful law. We use it unconsciously all the time. On Tue, Dec 12, 2017 at 11:53 PM, wrote: > Luca's point

Re: [Bloat] [Cerowrt-devel] DC behaviors today

On Wed, 13 Dec 2017, Jonathan Morton wrote: Occasionally, of course, practically everyone in the country wants to tune into coverage of some event at the same time. More commonly, they simply get home from work and school at the same time every day. That breaks the assumptions behind pure

Re: [Bloat] benefits of ack filtering

Forgive my ignorance, but does each channel have the same capacity in both directions in DOCSIS? - Jonathan Morton ___ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat

Re: [Bloat] benefits of ack filtering

On Wed, 13 Dec 2017, Jonathan Morton wrote: the uplink shaper is set to about a fiftieth of that. I seriously doubt that DOCSIS is ever inherently that asymmetric. Well, the products are, because that's what the operators seems to want, probably also because that's what the customers