[Bloat] fixing bufferbloat in 2017

David Lang david at lang.hm
Wed Nov 23 14:42:28 EST 2016

Most people not only aren't operating at 1Gb/sec, they can't buy a 1Gb/sec line 
at any cost.

100Mb is getting more common, but the majority of people cannot buy a line this 
fast for any amount of money.

10-30 Mb is probably the range that "most people" have, with a large number stll 
having <10Mb available, no matter what they are willing to pay

David Lang

On Wed, 23 Nov 2016, Benjamin Cronce wrote:

> I meant the actual physical link, not the provisioned rate. Most last mile
> tech encapsulates Ethernet frames into larger super-frames. Decapsulating
> the Ethernet frames is pretty much at 1Gb line rate. On my GPON link, with
> shaping in PFSense turned off, I regularly see 4,000+ 1500byte datagrams at
> full 1Gb link rate hitting my WAN before my ISP starts shaping to my
> 150Mb/s average. When I had a cable modem, I would see similar, except
> instead of a constant 1Gb/s, I would see bursts of multiple packets, then a
> small pause, but eventually the packets started to get more and more spaced
> as the provisioned average started to kick in. I assumed this was because
> my DOCSIS3 8x bonded link could only max out around 300Mb/s, even though my
> provisioned rate was only 30Mb/s.
> It really depended on the quantum of the shaping algorithm, calculated
> average window size, and how elastic or strict it was.
> Ahh, packet packing, what a fun problem.
> On Wed, Nov 23, 2016 at 12:38 PM, David Lang <david at lang.hm> wrote:
>> On Wed, 23 Nov 2016, Benjamin Cronce wrote:
>> Most people only have a 1Gb network link,
>> umm, no, most people have FAR slower links, by an order or two of
>> magnatude.
>> David Lang

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