[tor-dev] [tor-relays] Tor path selection upon failure

[teor]

> On 13 Sep 2016, at 14:02, Liu, Zhuotao <zliu48 at illinois.edu> wrote:
> 
> Hi Folks,

Hi,

Please don't cross post to multiple lists, it makes it hard for people to follow all the responses.
Can I suggest that everyone replies to tor-dev, as it's the list for Tor development, feature, and issue discussion.
(The other list you used is for Tor relay operators to discuss relay operation and configuration.)

Tim

> 
> There have been some technical reports about how to deal with the problem when a botnet uses Tor as its primary C&C channel. In this case, the CPU of some relays is exhausted, causing circuit creation failure.
> 
> I am wondering currently how a client reacts when its circuit creation fails? Does the client simply resend another create cell or it will re-select new path instead?
> 
> Thanks
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Tim Wilson-Brown (teor)

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