[tor-relays] in/out bandwidths and packet sizes

Tim Wilson-Brown - teor teor2345 at gmail.com
Sat Jul 9 09:20:07 UTC 2016


> On 9 Jul 2016, at 19:00, Toralf Förster <toralf.foerster at gmx.de> wrote:
> 
> Signed PGP part
> I'm just curious, why at my exit relay the bandwidth is constantly around 8 MByte/sec in both directions with a 2-3% higher value for the inbound bw whereas the amount of incoming packets is 25% and more higher more than the outgoing packet amount.
> 
> And as always I do have the question in mind: Would that be helpful for an attacker ?

Some packets in and out are Tor cells, which are limited to 512 bytes.
Other packets are exchanged with the wider Internet, and are likely a multiple of 512 bytes (from cells) on the way out, but can be any size (from the remove website) on the way in.

I don't think it's an issue.

Tim

> 
> --
> Toralf
> PGP: C4EACDDE 0076E94E, OTR: 420E74C8 30246EE7
> 
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Tim Wilson-Brown (teor)

teor2345 at gmail dot com
PGP C855 6CED 5D90 A0C5 29F6 4D43 450C BA7F 968F 094B
ricochet:ekmygaiu4rzgsk6n




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