[LINK] Latency across Australia & to Europe....
Martin Barry
marty at supine.com
Tue May 3 19:16:56 AEST 2011
$quoted_author = "Marghanita da Cruz" ;
>
> However, as Richard pointed out the routing plays a part and
It does, however even in the suboptimal situation where your traffic was
crossing from the mobile carriers network to the Internet in a single place
in Australia (i.e. Sydney) it doesn't appear that it would make a lot of
difference reaching international sites as a lot of the connectivity is from
there even if you are in Perth. Accessing local sites on the other end would
be a different story, especially if there is an extra Perth->Sydney->Perth
in there.
> If you are still in Europe, it would be interesting to know
> what the hops are to uwa.edu.au or ecu.edu.au (assuming
> these are hosted in Perth) vs syd.edu.au or uts.edu.au (assuming
> these are hosted in Sydney) - or doesn't it matter because of
> AARNET?
AARNET appears to have connectivity to Singapore
(http://www.aarnet.edu.au/aarnet3.aspx) but of all the Perth sites I've
tested from here in Frankfurt all have gone via the USA and Sydney.
e.g.
3. 62.96.203.153 0.0% 5 2.6 2.6 0.4 6.2 2.4
4. 217.111.108.109 0.0% 5 1.2 3.1 1.2 7.0 2.4
5. ge3-0-0-pr2.fra.router.colt.net 0.0% 5 9.0 7.5 5.3 9.0 1.8
6. xe-1-2-0.mpr1.fra4.de.above.net 0.0% 5 4.2 14.8 4.2 43.0 16.5
7. xe-0-0-0.mpr1.fra3.de.above.net 0.0% 5 2.5 8.2 2.5 23.7 8.8
8. xe-0-1-0.mpr1.cdg11.fr.above.net 0.0% 5 23.4 15.5 11.8 23.4 4.9
9. xe-3-1-0.mpr1.lhr2.uk.above.net 0.0% 5 23.2 20.6 18.4 23.2 2.2
10. so-1-1-0.mpr1.dca2.us.above.net 0.0% 5 90.8 91.2 90.8 91.8 0.4
11. xe-1-3-0.cr1.dca2.us.above.net 0.0% 5 94.1 92.9 91.5 94.5 1.4
12. xe-1-3-0.cr1.iah1.us.above.net 0.0% 5 148.4 134.1 118.7 148.4 12.5
13. xe-2-0-0.cr1.lax112.us.above.net 0.0% 5 151.0 161.0 150.5 195.9 19.5
14. xe-2-1-0.cr1.sjc2.us.above.net 0.0% 5 159.6 160.0 158.1 161.9 1.5
15. xe-0-1-0.er1.sjc2.us.above.net 0.0% 5 157.1 158.7 157.1 161.8 2.1
16. 64.125.193.134.i223.above.net 0.0% 5 303.2 303.2 302.4 304.7 0.9
17. ge-6-0-0.bb1.b.syd.aarnet.net.au 0.0% 5 302.8 303.8 302.6 306.5 1.6
18. so-2-0-0.bb1.a.mel.aarnet.net.au 0.0% 5 317.0 317.1 316.2 317.9 0.7
19. so-2-0-0.bb1.a.adl.aarnet.net.au 0.0% 5 323.6 325.2 323.6 328.3 2.1
20. so-0-1-0.bb1.a.per.aarnet.net.au 0.0% 5 350.9 352.7 350.9 354.4 1.9
21. gigabitethernet0.er1.uwa.cpe.aarnet.net.au 0.0% 5 356.0 359.4 351.3 375.1 10.6
22. gw1.er1.uwa.cpe.aarnet.net.au 0.0% 5 351.7 369.7 351.6 420.7 34.1
23. matrix.uwa.edu.au 0.0% 5 351.4 353.1 351.4 355.0 1.9
There may be a network who has a path to Europe via Asia and the Middle East
and prefers it over the USA but I am yet to find an example of it.
cheers
Marty
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