I just noticed netalyzr shut down last month.... On April 11, 2019 2:45:19 PM GMT+02:00, Sebastian Moeller 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 > 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.