[Ecn-sane] osx ecn

[Dave Taht]

Very cool, thank you for jailbreaking.

I'm a little puzzled over the cwr/ece ratio?

25 times received congestion experienced (CE) notification
37 times CWR was sent in response to ECE
619 times sent ECE notification
1029 connections received CE atleast once

And um, er, while you are here busting your warranty for the sake of
science, I'm dying to know what

 netstat -I each_interface_you_have_especially_lte -qq

shows. They have a really short queue and some form of flow control
and I've never seen anything trigger except though a vm

my laptop:

en0:

     [ sched:  FQ_CODEL  qlength:    0/128 ]

     [ pkts:          0  bytes:          0  dropped pkts:   1087 bytes: 177812 ]

=====================================================

     [ pri: VO (1)      srv_cl: 0x400180        quantum: 600    drr_max: 8 ]

     [ queued pkts: 0   bytes: 0 ]

     [ dequeued pkts: 36767     bytes: 5237639 ]

     [ budget: 0        target qdelay: 10.00 msec       update
interval:100.00 msec ]

     [ flow control: 0  feedback: 0     stalls: 0       failed: 0 ]

     [ drop overflow: 0 early: 0        memfail: 0      duprexmt:0 ]

     [ flows total: 0   new: 0  old: 0 ]

     [ throttle on: 0   off: 0  drop: 0 ]

=====================================================

     [ pri: VI (2)      srv_cl: 0x380100        quantum: 3000   drr_max: 6 ]

     [ queued pkts: 0   bytes: 0 ]

     [ dequeued pkts: 96836     bytes: 36619772 ]

     [ budget: 0        target qdelay: 10.00 msec       update
interval:100.00 msec ]

     [ flow control: 0  feedback: 0     stalls: 0       failed: 0 ]

     [ drop overflow: 0 early: 0        memfail: 0      duprexmt:0 ]

     [ flows total: 0   new: 0  old: 0 ]

     [ throttle on: 0   off: 0  drop: 0 ]

=====================================================

     [ pri: BE (7)      srv_cl: 0x0     quantum: 1500   drr_max: 4 ]

     [ queued pkts: 0   bytes: 0 ]

     [ dequeued pkts: 5212250   bytes: 2820548356 ]

     [ budget: 0        target qdelay: 10.00 msec       update
interval:100.00 msec ]

     [ flow control: 30 feedback: 30    stalls: 0       failed: 0 ]

     [ drop overflow: 0 early: 0        memfail: 0      duprexmt:0 ]

     [ flows total: 0   new: 0  old: 0 ]

     [ throttle on: 0   off: 0  drop: 0 ]

On Wed, Aug 28, 2019 at 4:29 PM Ryan Mounce <ryan at mounce.com.au> wrote:
>
> On Wed, 28 Aug 2019 at 04:30, Michael Welzl <michawe at ifi.uio.no> wrote:
>>
>>
>>
>> On Aug 27, 2019, at 8:36 PM, Dave Taht <dave.taht at gmail.com> wrote:
>>
>> On Mon, Aug 26, 2019 at 11:54 PM Michael Welzl <michawe at ifi.uio.no> wrote:
>>
>>
>> run it as root - strange, yes, but then the output is very different.
>>
>> cheers,
>> michael
>>
>>
>> Sent from my iPhone
>>
>>
>> speaking of iphones I have no idea what they do nowadays, any odds you
>> could do a packet
>> cap either on it or at a server or via wifi on a middlebox
>>
>>
>> I wouldn’t know … but I can guess: some years ago, I did a “jailbreak” on my iPhone, and as a result, I could ssh into it.
>> So I’m guessing: if you do this with a current one, you can probably still ssh into it and then perhaps run netstat.
>>
>> Cheers,
>> Michael
>
>
> You sure can :)
>
> https://gist.github.com/rmounce/74dd5e92e6304688219024349bfaad0e
>
> -Ryan
>
>>
> --
> Regards,
> Ryan Mounce
>
> ryan at mounce.com.au
> 0415 799 929
>
> Sent from mobile



-- 

Dave Täht
CTO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-831-205-9740