Re: [Cake] Cake on openwrt - falling behind

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

On Sun, Jul 1, 2018 at 4:55 PM Dave Taht <dave.taht@gmail.com> wrote:
>
> Well, I took a look at that cap. It does look like what is supplied is
> truncated by quite a few bytes. I am under the impression that
> openwrt/lede use a mini library for libmnl (what does tc link to?)
> that may well be the source of this bug.

Meh. I think you should ignore my first statement
>
> One thing that might help in peering at the raw data this way would be
> to send const patterns
> for each value like F0F0F0F0F0F0 alternating with E0E0E0E0E0... (full
> pattern for 32 bit or 64 bit) to see what shows up.

And pursue the second.

> On Sun, Jul 1, 2018 at 12:41 PM Kevin Darbyshire-Bryant via Cake
> <cake@lists.bufferbloat.net> wrote:
> >
> >
> >
> >
> > ---------- Forwarded message ----------
> > From: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
> > To: Pete Heist <pete@heistp.net>
> > Cc: Cake List <cake@lists.bufferbloat.net>
> > Bcc:
> > Date: Sun, 1 Jul 2018 19:41:28 +0000
> > Subject: Re: [Cake]  Cake on openwrt - falling behind
> >
> >
> > > On 1 Jul 2018, at 17:54, Pete Heist <pete@heistp.net> wrote:
> > >
> > >
> > >
> > >> There’s a ‘kmon-nlmon’ that allows you to create a virtual network interface for the netlink packets and thus capture (tcpdump) and export to wireshark for dissection.  I had a look at that a few weeks ago but my head exploded and have only just recovered enough to start looking at this problem again….
> > >
> > > Cool, I might eventually get to that point. My head also approached some thermal limits last night with this unfamiliar build system but it’s getting a little better… :)
> >
> > For those who fancy dissecting some netlink packets, see attached :-)
> >
> >
> >
> >
> >
> > ---------- Forwarded message ----------
> > From: Kevin Darbyshire-Bryant via Cake <cake@lists.bufferbloat.net>
> > To: Pete Heist <pete@heistp.net>
> > Cc: Cake List <cake@lists.bufferbloat.net>
> > Bcc:
> > Date: Sun, 01 Jul 2018 12:41:33 -0700 (PDT)
> > Subject: Re: [Cake] Cake on openwrt - falling behind
> > _______________________________________________
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> > Cake@lists.bufferbloat.net
> > https://lists.bufferbloat.net/listinfo/cake
>
>
>
> --
>
> Dave Täht
> CEO, TekLibre, LLC
> http://www.teklibre.com
> Tel: 1-669-226-2619



-- 

Dave Täht
CEO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-669-226-2619