Re: [tor-dev] Bandwidth Weighted Node selection algorithm

[saurav dahal <dahal.saurav@xxxxxxxxx>]

If a client wants to select a node having Guard+Exit flag, for the entry position, then will it multiply the consensus bandweight of that node with WG or Wgg or Wgd?

On Fri, Aug 29, 2014 at 7:12 AM, Mike Perry <mikeperry@xxxxxxxxxxxxxx> wrote:

saurav dahal:

> Hello,
>
> In the paper,
>
>Â "Zhen Ling; Junzhou Luo; Wei Yu; Ming Yang; Xinwen Fu, "Extensive analysis

> and large-scale empirical evaluation of tor bridge discovery," *INFOCOM,
> 2012 Proceedings IEEE* , vol., no., pp.2381,2389, 25-30 March 2012",

>
> the author has mentioned about Bandwidth Weighted Node selection algorithm.
> He has mentioned about bandwidth weights WG and WE, responsible for node
> selection.
>
> But in the Tor directory protocol version 3, there is no such mention of
> these weights but rather there are other weights such as Wgg, Wee, etc.
>
> Can anybody please elaborate on this?

See 3.8.3 of dir-spec.txt and 2.2 of path-spec.txt:
https://gitweb.torproject.org/torspec.git/blob/master:/dir-spec.txt#l2163
https://gitweb.torproject.org/torspec.git/blob/master:/path-spec.txt#l184

Most probably the WG and WE shorthand was to refer to all Wg* and We*
weights (ie Wgg and Wgd, and Wed and Wee).

--
Mike Perry

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--

Saurav Dahal,

Wireless communication and Networking lab,

Dept. of Computer Engineering,
Chosun University,
309 Pilmun-daero, Dong-gu
Gwangju, 501-759 S.KOREA

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