Re: [Bloat] datapoint from one vendor regarding bloat

[Sebastian Moeller <moeller0@gmx.de>]

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I just noticed netalyzr shut down last month....

On April 11, 2019 2:45:19 PM GMT+02:00, Sebastian Moeller <moeller0@gmx.de> wrote:
>Interesting! Thanks for sharing. I wonder what the netalyzr buffertest
>would report for these?
>
>Best Regards
>        Sebastian
>
>On April 11, 2019 12:38:54 PM GMT+02:00, Mikael Abrahamsson
><swmike@swm.pp.se> wrote:
>>
>>Hi,
>>
>>I talked to Nokia (former Alcatel/Lucent equipment) regarding their 
>>typical buffer settings on BNG. I thought their answer might be
>>relevant 
>>as a data point for people to have when they do testing:
>>
>>https://infoproducts.alcatel-lucent.com/cgi-bin/dbaccessfilename.cgi/3HE13300AAAATQZZA01_V1_Advanced%20Configuration%20Guide%20for%207450%20ESS%207750%20SR%20and%207950%20XRS%20for%20Releases%20up%20to%2014.0.R7%20-%20Part%20II.pdf
>>
>>"mbs and cbs — The mbs defines the MBS for the PIR bucket and the cbs 
>>defines the CBS for the CIR bucket, both can be configured in bytes or
>
>>kilobytes. Note that the PIR MBS applies to high burst priority
>packets
>>
>>(these are packets whose classification match criteria is configured
>>with 
>>priority high at the ingress and are in-profile packets at the
>egress).
>>
>>Range: mbs=0 to 4194304 bytes; cbs=0 to 4194304 bytes Note: mbs=0
>>prevents 
>>any traffic from being forwarded. Default: mbs=10ms of traffic or 64KB
>>if 
>>PIR=max; cbs=10ms of traffic or 64KB if CIR=max"
>>
>>So the default setting is that they have a 10ms buffer and if a packet
>>is 
>>trying to be inserted into this buffer and it's 10ms full, then that 
>>packet will instead be dropped.
>>
>>They claimed most of their customers (ISPs) just went with this
>setting
>>
>>and didn't change it.
>>
>>Do we have a way to test this kind of setting from the outside, for 
>>instance by sending a large chunk of data at wirespeed and then
>>checking 
>>the characteristics of the buffering/drop for this burst of packets at
>
>>receive side?
>>
>>-- 
>>Mikael Abrahamsson    email: swmike@swm.pp.se
>
>-- 
>Sent from my Android device with K-9 Mail. Please excuse my brevity.

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

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