[tor-relays] Guard vs Exit Bandwidth

[teor]

> On 3 Sep 2016, at 03:53, Tristan <supersluether at gmail.com> wrote:
> 
> But hidden service traffic makes up about 0.01% of Tor traffic.

0.9 Gbps  / 75 Gbps = 1.2%

> Total is about 75Gb/s: http://rougmnvswfsmd4dq.onion/bandwidth.html
> 
> Hidden services are about 900Mb/s: http://rougmnvswfsmd4dq.onion/hidserv-rend-relayed-cells.html

Hidden Service traffic goes through two Guards and no Exits, Exit traffic goes through one of each.

That said, the most likely explanation isL
* almost every Exit has the Guard flag, but only a proportion of Guards have the Exit flag, and
* the bandwidth allocation algorithms give relays with Exit and Guard flags all Exit and no Guard traffic, because Exits are rarer than Guards.

Tim

> 
> On Fri, Sep 2, 2016 at 12:51 PM, Green Dream <greendream848 at gmail.com> wrote:
> Don't forget that some traffic enters through guards but lands on
> hidden services, skipping Exits.
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> 
> --
> Finding information, passing it along. ～SuperSluether
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Tim Wilson-Brown (teor)

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