[Snap] Has Snap started caching HTTP?

Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › [Snap] Has Snap started caching HTTP?

Lorenceo

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#111499 5-Nov-2012 17:55

Have been doing some tests to various places around the world, and have noticed that with speedtest.net I get line speed to pretty much everywhere, including far off places such as South Africa.

Has Snap started caching HTTP traffic?

Here's a link to test with from Zimbabwe, which I somehow can download at 1.8MB/s:
http://speed.yoafrica.com/speedtest/random2000x2000.jpg?x=135209062226177&y=2

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#712458 5-Nov-2012 18:05

I doubt it, I am still waiting for your link to finish opening, page is downloading at ~15kB

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Zeon

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#712462 5-Nov-2012 18:09

Maybe its just the speed test? I noticed this too on orcon:

Speedtest 2019-10-14

Lorenceo

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#712466 5-Nov-2012 18:16

It's weird though, my router shows the same speed going through it as what speedtest.net reports, so the data is coming from somewhere. According to my router it is coming from the IPs in the various countries too, not all from a Snap IP or anything. I'm unsure what to make of it.
It also seems to only affect IPv4 traffic, IPv6 traffic is still slower internationally, such as http://proof.ovh.net/

SCM

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#712472 5-Nov-2012 18:30

Which Capetown server did you test against?

This result is from the top of the list Telkom SA

freitasm

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#712474 5-Nov-2012 18:33

Please visit this page and let us know if there's a "HTTP_VIA" header listed there.

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mercutio

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#712476 5-Nov-2012 18:36

if you have a linux box you can do "tcptraceroute 80" and if it finishes after like 4 hops you're getting transparent proxied.

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mercutio

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#712477 5-Nov-2012 18:37

fwiw, not on snap i get like 6k/sec to that destination, and a ping shows heaps of latency to the last ip.


Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev

17. core-xgcp-mad-toucan-gi-1-2.net.yoafrica.com 0.0% 27 521.4 528.1 520.0 572.4 13.2
18. dagga.yoafrica.com 0.0% 27 551.5 1798. 517.3 3406. 891.9

Lorenceo

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#712478 5-Nov-2012 18:38

Nope, no HTTP_VIA headers listed. Neither on v4 or v6.
Downloads from far off sourceforge mirrors are also very fast, but only IPv4 ones.

EDIT: The server tested to in Cape Town was the one hosted by Vodacom.
I'll boot into Linux and try that command out + report back soon.

mercutio

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#712480 5-Nov-2012 18:39

try doing a download of http://am.meh.net.nz:24/testfile.zip and compare against http://am.meh.net.nz/testfile.zip

the port 24 will bypass most transparent proxies.

Lorenceo

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#712486 5-Nov-2012 18:44

900ish KB/s for that test file.
EDIT: 900~KB/s for both files. Both tested with a single stream.

Maybe Snap have just bought a boat load of new bandwidth? :o

mercutio

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#712487 5-Nov-2012 18:45

as point of comparison i get 6.87 megabit/sec on speedtest.net to that server, which is pretty good for africa.

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mercutio

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#712490 5-Nov-2012 18:46

Lorenceo: 900ish KB/s for that test file.

someone on xtra could pull 1.6 megabytes/sec off there with one connection.

see if it's better on port 80?

SCM

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#712493 5-Nov-2012 18:49

Not sure if it will help but here's my trace to dagga.yoafrica.com. I see there is a new hop in mine, mdr.core.snap.net.nz never seen that one before.

Tracing route to dagga.yoafrica.com [196.44.176.55]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.20.1
2 30 ms 98 ms 99 ms 192.168.1.253
3 87 ms 51 ms 50 ms 20.17.69.111.static.snap.net.nz [111.69.17.20]
4 13 ms 12 ms 12 ms 24.17.69.111.static.snap.net.nz [111.69.17.24]
5 * * * Request timed out.
6 * * * Request timed out.
7 26 ms 27 ms 26 ms xe-0-3-0-1037.mdr.core.snap.net.nz [111.69.27.66
]
8 27 ms 82 ms 27 ms 111-69-27-65.core.snap.net.nz [111.69.27.65]
9 357 ms 211 ms 208 ms te7-3.ccr01.sjc05.atlas.cogentco.com [38.122.92.
105]
10 153 ms 195 ms 171 ms te0-3-0-7.ccr22.sjc01.atlas.cogentco.com [154.54
.6.69]
11 192 ms 192 ms 160 ms te0-0-0-4.ccr22.sfo01.atlas.cogentco.com [154.54
.2.125]
12 190 ms 210 ms 191 ms te0-1-0-2.ccr22.mci01.atlas.cogentco.com [154.54
.30.70]
13 203 ms 203 ms 203 ms te0-3-0-2.ccr22.ord01.atlas.cogentco.com [154.54
.6.213]
14 226 ms 225 ms 225 ms te0-3-0-1.ccr22.bos01.atlas.cogentco.com [154.54
.24.57]
15 299 ms 298 ms 298 ms te0-0-0-2.ccr22.lon13.atlas.cogentco.com [130.11
7.0.45]
16 299 ms 299 ms 298 ms 154.54.74.65
17 298 ms 298 ms 299 ms te3-2.mag01.lon01.atlas.cogentco.com [130.117.2.
18]
18 299 ms 299 ms 299 ms 149.6.187.18
19 482 ms 481 ms 480 ms P1-JHB-ip-t1.liquidtelecom.net [46.17.232.7]
20 490 ms 490 ms 491 ms P1-BYO-g1-1-3.liquidtelecom.net [46.17.232.15]
21 496 ms 495 ms 496 ms P1-HRE-g1-1-4.liquidtelecom.net [46.17.232.74]
22 500 ms 496 ms 496 ms PE1-HRE-g1-0-0.liquidtelecom.net [46.17.232.29]

23 497 ms 512 ms 520 ms 46.17.233.10
24 498 ms 497 ms 496 ms core-xgcp-mad-toucan-gi-1-2.net.yoafrica.com [19
6.44.184.126]
25 1142 ms 1243 ms 1244 ms dagga.yoafrica.com [196.44.176.55]

Trace complete.

mercutio

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#712496 5-Nov-2012 18:52

i wouldn't think too much of that ip.. i think they just updated their DNS... i imagine they constantly do network upgrades... but considering you get that high ping to that destination, i get that high ping to that destination, and trying from the US I still get that high ping to the destination... i think it showing 16 megabits is just speedtest.net being broken.

that server i listed before is amsterdam... which although high ping tests to have more bandwidth than africa.

Lorenceo

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#712502 5-Nov-2012 18:56

Where am I testing to, and with what parameters with tcptraceroute?

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