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Hi everyone,
I discovered, during a presentation at this year LinuxCon in San Diego, the problem of "bufferbloat" which is encountered in network bottlenecks.
https://en.wikipedia.org/wiki/Bufferbloat http://www.bufferbloat.net/
There is been a good amount of work done so far to fix this problem ending up with the CoDel algorithm (http://queue.acm.org/detail.cfm?id=2209336). The Linux kernel is about to accept this policy as default.
Anyhow, I looked around for some recent studies on the Tor network about such congestion issues but I can't find any information on if this phenomenon is observed on the Tor network.
Someone knows about that?
Thanks a lot! David
On Wed, Sep 5, 2012 at 11:52 AM, David Goulet dgoulet@ev0ke.net wrote:
... the problem of "bufferbloat" which is encountered in network bottlenecks.
https://en.wikipedia.org/wiki/Bufferbloat http://www.bufferbloat.net/
yup. particularly bad at the edges...
Anyhow, I looked around for some recent studies on the Tor network about such congestion issues but I can't find any information on if this phenomenon is observed on the Tor network.
Someone knows about that?
there are half a dozen papers on the topic in anonbib: http://freehaven.net/anonbib/topic.html
and alternate proposals like IPsec telescopes and DTLS transports with end-to-end congestion control/avoidance specifically to avoid queuing at intermediate hops.
i'm not aware of research on AQM applied to low latency anonymous networks, but i'm not up to date on the latest research :)
best regards,
-
coderman -
David Goulet