Re: some (less than funny) interactions with networking on openwrt (and other systems)

[Dave Taht <dave.taht@gmail.com>]

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On Wed, Jul 27, 2011 at 9:46 AM, Juliusz Chroboczek <jch@pps.jussieu.fr>wrote:

> > 2) qos-scripts (already mentioned) as an additional problem of always
> > ending up with 127 buckets or so for packets in the SFQ qdisc, when a
> > 'righter' number would be closer to 8-32.
>
> Huh?
>

Tc reports 127 for SFQ with the default qdisc


>
> > It also enables ecn by default. but ecn is often turned off on the
> > router, so there's no way to see it in action if you are generating
> > traffic from the router.
>
>   https://dev.openwrt.org/ticket/3001
>
> I managed to get ECN enabled in OpenWRT trunk, but the change was subse-
> quently reverted.
>
>
It's enabled in cerowrt by default.

> 5) DRR is the new hotness, but I haven't played with it. It's supposed
> > to make red-like stuff simpler.
>
> Link?
>
> http://cateee.net/lkddb/web-lkddb/NET_SCH_DRR.html

multiple hits on google... don't know what variant it is... my whole point
with cerowrt was to be able to get *reproducable* results while fiddling
with all the AQMs.

http://www.google.com/search?client=ubuntu&channel=fs&q=direct+round+robin&ie=utf-8&oe=utf-8#pq=direct%20round%20robin&hl=en&cp=22&gs_id=g&xhr=t&q=direct+round+robin+DRR&qe=ZGlyZWN0IHJvdW5kIHJvYmluIERSUg&qesig=RcJg4Jg_fUZP8VPsdCvmGA&pkc=AFgZ2tmu4dq80_gTlQK_O2pc3crE-cSohUIxzYzi2jSJgHEuwW5SeFaYxyesYaKUo-7p8Iw0LzjsmYpj_P7WTia3UwzzO5Kuwg&pf=p&sclient=psy&client=ubuntu&hs=BEp&channel=fs&source=hp&pbx=1&oq=direct+round+robin+DRR&aq=f&aqi=&aql=&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.&fp=42e6aa27a76a3271&biw=959&bih=487


> -- Juliusz
>



-- 
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://the-edge.blogspot.com

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