[tor-relays] excessive bandwidth assigned bandwidth-limited exit relay

Dhalgren Tor dhalgren.tor at gmail.com
Thu Oct 1 13:46:17 UTC 2015

On Thu, Oct 1, 2015 at 1:33 PM, Tim Wilson-Brown - teor
<teor2345 at gmail.com> wrote:
> On 1 Oct 2015, at 15:22, Dhalgren Tor <dhalgren.tor at gmail.com> wrote:
> If the relay stays overloaded I'll try a packet-dropping IPTABLES rule
> to "dirty-up" the connection.
> Please reduce your BandwidthRate until your relay load is what you want it
> to be, or wait until the bandwidth authorities notice your relay is
> overloaded and reduce its consensus weight.

You are willfully missing the entire point here.

HAVE set the bandwidth limit and the measurement system is overrating
the relay despite this.

> Dropping packets using IPTABLES will actually increase your relay’s load due
> to retransmits, and degrade the performance of clients which use your relay.
> An IPTABLES rule would also degrade the performance of the overall Tor
> network due to these same retransmits.

I will give it a couple of days to normalize, but if the relay remains
overrated I will proceed with a IPTABLES packet-dropping rate limit.

The point is to have the measurement system set a rating that gives a
80-90% load for active circuits.  At that load no packets will be
discarded for regular Tor users.  The packet-dropping rate limit will
only impact measurement connections.

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