[ntp:questions] Something which may help improve delays

Ron Frazier (NTP) timekeepingntplist at techstarship.com
Wed May 23 13:02:55 UTC 2012

On 5/23/2012 2:43 AM, Terje Mathisen wrote:
> Rick Jones wrote:
>> I did a very cursory check to see if this was already brought-up but
>> may have missed it.  Folks interested in addressing highly variable
>> delays in networks and such may find the "codel" AQM interesting.  It
>> seeks to keep the time packets spend in queues down as part of
>> addressing "buffer bloat."
>> It won't eliminate variable delays and jitter but if it and/or things
>> like it get more widely deployed it may constrain them a bit.
>> http://queue.acm.org/detail.cfm?id=2209336
>> https://lists.bufferbloat.net/listinfo/codel
> I bought a NetGear 3800 a couple of weeks ago in order to run the 
> CeroWrt test release which is used to verify codel.
> So far it works well here, but I have a 50/50 fiber connection 
> (delivering at least 45-48 Mbits in both directions) so I don't see 
> much buffering in my end of the network.
> Terje
> PS. I attended a presentation by Jim Gettys, the BufferBloat Man, in 
> April: The story about how van Jacobsen could not get his new AQM 
> paper accepted to any refereed conference is both sad and funny:
> The paper was dismissed with the comment that "it has to be wrong" and 
> "the author would do well to read the definitive paper by van 
> Jacobsen". :-)

I read somewhere that "authorities" in the region were positively 
denying the possibility of manned flight for at least 5 years after the 
Wright Brothers were demonstrating the airplane.  What's that old saying?

When someone comes up with a revolutionary idea,

First they're mocked,
Then, it could be true,
Then, it's accepted, (sometimes after the originator's death)
Then, others say they discovered it first.




(To whom it may concern.  My email address has changed.  Replying to former
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Ron Frazier
timekeepingdude AT techstarship.com

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