Re: [Bloat] [Ecn-sane] non queue building flows ietf draft review.

2019-08-24 Thread Dave Taht
Just for the record, the reason why I did not cross post my comments to ecn-sane as well as tsvwg, was in the hope that by putting the commentary on the draft there, and the venting, here, was that it might cut down on the noise and pain level this time around as we ramp up for another tense

Re: [Bloat] [Ecn-sane] non queue building flows ietf draft review.

2019-08-24 Thread Sebastian Moeller
Well, now I wasted my evening by going through this once again, and I remember why I forgot its content from last time around... I am with Dave, it is a bit wordy for effectively saying let's call 2A = NBQ, and it comes with loads of tangential text that really seems to belong to an actually

Re: [Bloat] [Ecn-sane] non queue building flows ietf draft review.

2019-08-24 Thread Sebastian Moeller
Hi Dave, fun fact, the draft is titled "Identifying and Handling Non Queue Building Flows in a Bottleneck Link". To which the _only_ and obvious answer is one does this by by observing flow-behavior on the element that egresses into the bottleneck link. Case closed, Nothing to see folks, you

[Bloat] non queue building flows ietf draft review.

2019-08-24 Thread Dave Taht
I decided that perhaps it would be best if we tried harder to live within the ietf's processes for calm, reasoned discussion But in trying to review this internet draft... https://tools.ietf.org/id/draft-white-tsvwg-nqb-02.html I couldn't help myself, and my review is here:

Re: [Bloat] buffer sizing meeting notes

2019-08-24 Thread Luca Muscariello
On Sat, Aug 24, 2019 at 9:59 AM Sebastian Moeller wrote: > Another nugget from the notes ( > http://yuba.stanford.edu/~bspang/buffer-sizing-meeting/notes/): > > This looks like an argument for fq_codel/cake's use of time instead of > queue length, OR an argument for fq, because in a

Re: [Bloat] buffer sizing meeting notes

2019-08-24 Thread Sebastian Moeller
Another nugget from the notes (http://yuba.stanford.edu/~bspang/buffer-sizing-meeting/notes/): Chuanxiong Guo, Bytedance Talked about buffering in Bytedance’s datacenters. The top of rack switches have buffers of 12-32MB, and the aggregation switches have larger buffers of several GB. Were

Re: [Bloat] buffer sizing meeting notes

2019-08-24 Thread Jesper Dangaard Brouer
On Fri, 23 Aug 2019 10:13:39 -0700 Simon Barber wrote: > > On Aug 23, 2019, at 9:07 AM, Dave Taht wrote: > > > > There's some good preso from various representatives in the dc market here. > > > > The p4 stuff, in particular (from barefoot) is looking impressive. > > > >