[Cake] Configuring cake for VDSL2 bridged connection

[techicist at gmail.com]

Many apologies, the link should be, http://imgur.com/6DrMJKI.

On 24 August 2016 at 18:01, techicist at gmail.com <techicist at gmail.com> wrote:

> I have today been using flent to do RRUL tests with the values set at 50%.
>
> I have uploaded the first test I have performed. It can be seen at,
> http://imgur.com/6DrMJKI.
>
> I'm a bit confused why the DS speed is only 7Mb/s when every other speed
> test I have done is around 28Mb/s (as it should be). Can anyone explain why
> this might be? Am I doing something wrong?
>
> I would appreciate an expert analysis of the graph, if possible :)
>
> On 23 August 2016 at 21:09, Sebastian Moeller <moeller0 at gmx.de> wrote:
>
>> Hello techicist,
>>
>> On August 23, 2016 5:13:19 PM GMT+02:00, "techicist at gmail.com" <
>> techicist at gmail.com> wrote:
>> >Hello,
>> >
>> >Thank you for your quick reply.
>> >
>> >I take it that one of the DHCPs should read PPPoE?
>> >
>> >
>> >Yes, you are quite correct. It should read: "TalkTalk uses DHCP to
>> >obtain
>> >an IP address and not PPPoE as most other ISPs do." But I think you
>> >understood that :)
>> >
>> >My sync speeds on VDSL2 have been very stable for the last 84+ days so
>> >my
>> >calculated figures will stay the same for some time, I would like to
>> >think.
>>
>> Yes, that is what I see as well.
>>
>> >My DS sync speed is 58976Kbps and thus I have calculated a reference
>> >value
>> >of 58068Kbps based on your formula. The US sync speed is 10422Kbps and
>> >the
>> >reference value for this is 10261Kbps.
>> >
>> >Setting the reference values to 50%, I have: 29034Kbps for the DS; and
>> >5130Kbps for the US. I will test with these numbers shortly. Am I right
>> >to
>> >assume I can just paste these into the SQM interface on LuCI?
>>
>>        Yes, that should work.
>>
>> >I will set
>> >the "Queuing discipline" to *cake* and the "Queue setup script" to
>> >*piece_of_cake.qos*.
>> >
>> >I assume also at this stage, to set "Which link layer to account for"
>> >as *none
>> >(default)*?
>>
>>         Should work, but also Ethernet should work, as long as you do not
>> specify anything, or rather -14 ;)
>>
>> >
>> >I will then increment the values I have pasted into LuCI (assuming that
>> >is
>> >correct) as you have said. At this point, with an assumed overhead of
>> >8, do
>> >I just choose *Ethernet with overhead...* and then set the "Per Packet
>> >Overhead (byte)" to *8*?
>>
>> Yes. In essence that is the trick, it might make sense to look at cake'
>> statistics especially the max length field, which if you have lla set at
>> none reach 1514 if the kernel automatically adds it's 14 bytes.
>>
>>
>> >
>> >Is there any benefit of going through UCI?
>>
>>         Only if you despise the GUI or only have ssh access, I guess...
>> Functionally it should boil down to the same, as the GUI simply fills
>> /etc/config/sqm with values and then calls /etc/init.d/sqm to actually
>> start the scripts...
>>
>> Best Regards
>>         Sebastian
>>
>>
>> >
>> >
>> >------------------------------------------------------------------------
>> >
>> >_______________________________________________
>> >Cake mailing list
>> >Cake at lists.bufferbloat.net
>> >https://lists.bufferbloat.net/listinfo/cake
>>
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>
>
>
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