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View Full Version : International Internet Routing - find the broken link !?



CivFan
18-07-2012, 08:07 PM
So a certain game I like to play requires a connection to a certain international server, since the games release I have had no problems, around 1 month ago something changed and my connection to this one sever is very flakey or simply not there. All other Internet access is fine. I have exusted all the trouble shooting I can from this end, the problem is the server after hop 16 in the below trace. The connection to 27.111.222.82 always works but the server after that always times out. How can I discover more about the 27.111.222.82 server? Is it possible that there sys admins changed something one month ago with thier routers and now I and others can't get past it? How do these things work? I am not alone with this issue see (http://sea.battle.net/sc2/en/forum/topic/364296427?page=5) for others with the same problem. Is it even possible to troubleshoot this kind of thing. I have logged a call with Level 2/3 network support at Telecom but it is likley that it is not thier problem as it is probably an oversea server? (the trace shows telstra severs after the NZ global gateway servers), I am a developer and know very little about the ins and out of global routing. Can the bods out thier help?


C:\>tracert 202.9.66.76

Tracing route to 202.9.66.76 over a maximum of 30 hops

1 82 ms 99 ms 99 ms dsldevice.lan [192.168.100.254]
2 40 ms 78 ms 40 ms 125-239-248-1.jetstream.xtra.co.nz [125.239.248.1]
3 56 ms 55 ms 55 ms mdr-fid-int.akbr5.global-gateway.net.nz [202.37.244.222]
4 52 ms 52 ms 55 ms ae4-10.akbr5.global-gateway.net.nz [202.37.244.221]
5 52 ms 53 ms 54 ms xe3-1-0.tkbr9.global-gateway.net.nz [202.50.232.74]
6 76 ms 77 ms 76 ms xe0-1-0.sebr1.global-gateway.net.nz [202.50.232.14]
7 91 ms 82 ms 76 ms ae1-10.sebr2.global-gateway.net.nz [202.50.232.242]
8 92 ms 78 ms 75 ms i-0-1-2-peer.sydp01.pr.telstraglobal.net [134.159.124.221]
9 80 ms 80 ms 78 ms i-0-6-4-0.sydp-core02.bi.telstraglobal.net [202.84.223.13]
10 79 ms 80 ms 79 ms i-0-4-2-0.sydo-core01.bi.telstraglobal.net [202.84.223.18]
11 136 ms 133 ms 133 ms i-0-0-1.pthp-core01.bi.telstraglobal.net [202.84.144.193]
12 184 ms 182 ms 183 ms i-0-0-0.istt-core01.bx.telstraglobal.net [202.84.141.50]
13 185 ms 183 ms 184 ms i-0-3-0-0.6ntp01.bi.telstraglobal.net [202.84.243.6]
14 185 ms 184 ms 183 ms unknown.telstraglobal.net [202.126.173.182]
15 189 ms 183 ms 182 ms xe-1-1-1.gw401.sg2.ap.equinix.com [27.111.222.107]
16 183 ms 183 ms 188 ms 27.111.222.82
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24

CivFan
24-07-2012, 11:23 AM
Seems to be fixed now, still don't who or what fixed it. Nor am I any the wiser about International routing issues....

inphinity
24-07-2012, 11:28 AM
1 82 ms 99 ms 99 ms dsldevice.lan [192.168.100.254]
2 40 ms 78 ms 40 ms 125-239-248-1.jetstream.xtra.co.nz [125.239.248.1]

That is some crazy high latency to local devices....

8ftmetalhaed
24-07-2012, 11:38 AM
Could have been another link in the chain going down. Way back when I had some servers change IP on Tf2, the ping jumped from 80 to 2-400 MS, as my ping was going literally around the world before it got to Aussie.
Oh and edit 2- in this case it took MONTHS to get it fixed. I had to send multiple WHOIS and traceroute results to Orcon before they acknowledged it was a routing issue rather than just me having high latency.

It happened again the other day despite nothing changing, simply because one of the links went down in the middle (on the aussie side).
Once it was brought back up my ping halved again. Could have just been a server going down for maintenance or crashing or something temporary.

edit 1- Oh and also, googling 'WHOIS (ip address)' can tell you who owns the server.

For example:
http://www.ip-adress.com/whois/156.62.3.26