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Re: [tor-relays] Tor bandwidth scanner "longclaw" slow to the US West Coast
Hi,
Am 16.08.2020 um 02:41 schrieb Neel Chauhan:
Hi,
I believe the Tor bandwidth scanner nicknamed "longclaw" is measuring
relays in the US West Coast worse than other bandwidth scanners in North
America. This happens on multiple ISPs, both ones I have and ones I don't.
The plots below can be a coincidence, but it shows at least there are
more parameters for unexpected observations:
The consensus of a relay in Germany shows:
moria1 Fast Guard !HSDir Run Stab V2Dir Valid bw=17700
tor26 Fast Guard HSDir Run Stab V2Dir Valid
dizum Fast Guard HSDir Run Stab V2Dir Valid
gabel. Fast Guard HSDir Run Stab V2Dir Valid bw=21800
danne. Fast Guard HSDir Run Stab V2Dir Valid
maatu. Fast Guard HSDir Run Stab V2Dir Valid bw=24000
farav. Fast Guard HSDir Run Stab V2Dir Valid bw=21500
longc. Fast !Guard HSDir Run Stab V2Dir Valid bw=1800
bastet Fast Guard HSDir Run Stab V2Dir Valid bw=17300
The mtr plot for the same server shows the hop
"100ge1-1.core1.par2.he.net" is generating many packets losses.
Where "100ge14-1.core1.nyc4.he.net" puts milli seconds into the game:
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. 91-143-90-251.gw.dsw-c6ka.as35366.net
0.0% 51 0.3 1.4 0.3 46.3 6.4
2. po162.bbsw-h3-j1cr.as35366.net
0.0% 51 0.5 0.9 0.3 9.3 1.4
3. po150.bbsw-h2-j1a.as35366.net
0.0% 51 0.4 4.5 0.3 189.5 26.4
4. po205.bbsw-h4a-fra.as35366.net
0.0% 51 7.3 7.6 7.0 24.4 2.4
5. 10gigabitethernet2-3.core1.fra1.he.net
0.0% 50 9.0 11.1 7.1 32.6 6.8
6. 100ge16-2.core1.fra1.he.net
0.0% 50 7.7 7.6 7.3 13.9 0.9
7. 100ge1-1.core1.par2.he.net
51.0% 50 17.0 20.2 16.7 39.2 6.6
8. 100ge14-1.core1.nyc4.he.net
0.0% 50 87.1 90.1 87.1 102.7 4.3
9. 100ge10-1.core1.ymq1.he.net
0.0% 50 99.4 101.3 99.2 109.7 3.2
10. estruxture-data-centers.10gigabitethernet1-1-40.switch3.ymq1.he.net
0.0% 50 99.3 101.0 99.1 136.5 6.2
11. 64.15.69.54 0.0% 50 98.2 98.1 97.8 99.0 0.2
12. anon.riseup.net 0.0% 50 98.4 98.4 98.0 100.3 0.5
Relays at other hosting locations choose for different routes and
longclaw sees them perfectly equal. It*s a case by case.
--
Cheers, Felix
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