[mrtg] Re: OT: Overseas Network Connections
Trent Melcher
tmelcher at trilogytel.com
Tue Mar 23 16:01:11 MET 2004
Alan, not sure where your getting blocked at, I was able to get almost
there several times. Here is the last trace I did. THis originates in
Omaha NE.
Trent
1 promisenet (208.47.115.1) 197.716 ms 199.458 ms 199.921 ms
2 kcm-edge-10.inet.qwest.net (65.116.32.249) 200.037 ms 199.723 ms
199.904 ms
3 kcm-core-03.inet.qwest.net (205.171.29.89) 200.173 ms 199.789 ms
199.879 ms
4 cer-core-02.inet.qwest.net (205.171.8.169) 199.881 ms 199.732 ms
199.927 ms
5 cer-core-01.inet.qwest.net (205.171.139.1) 199.901 ms 200.011 ms
199.756 ms
6 chi-core-02.inet.qwest.net (205.171.205.33) 199.928 ms 199.843 ms
200.004 ms
7 chi-brdr-03.inet.qwest.net (205.171.20.138) 199.799 ms 199.842 ms
199.891 ms
8 205.171.1.162 (205.171.1.162) 200.005 ms 207.115 ms 192.413 ms
9 144.232.26.113 (144.232.26.113) 199.905 ms 199.612 ms 199.825 ms
10 144.232.20.156 (144.232.20.156) 199.930 ms 199.899 ms 199.849 ms
11 144.232.6.89 (144.232.6.89) 199.926 ms 201.194 ms 199.020 ms
12 144.232.9.151 (144.232.9.151) 199.515 ms 199.432 ms 209.881 ms
13 144.232.17.182 (144.232.17.182) 209.903 ms 199.773 ms 199.935 ms
14 144.232.20.194 (144.232.20.194) 439.902 ms 399.775 ms 399.898 ms
15 sl-gw10-hk-15-0.sprintlink.net (203.222.38.42) 399.984 ms 399.677 ms
399.595 ms
16 sla-chnet-2-0.sprintlink.net (203.222.39.106) 599.890 ms 599.693 ms
599.905 ms
17 210.53.126.5 (210.53.126.5) 399.886 ms 399.950 ms 399.897 ms
18 210.52.132.233 (210.52.132.233) 399.877 ms 400.062 ms 449.447 ms
19 2p0-gsr2-wh1.cncnet.net (210.52.130.70) 399.924 ms 399.868 ms 399.841
ms
20 3p0-gsr2-bj1.cncnet.net (210.52.130.25) 399.996 ms 399.835 ms 399.974
ms
21 210.52.148.54 (210.52.148.54) 399.843 ms 399.421 ms 399.893 ms
22 210.82.1.29 (210.82.1.29) 599.911 ms 399.827 ms 399.906 ms
23 210.82.1.77 (210.82.1.77) 599.910 ms 599.232 ms 400.327 ms
24 210.82.98.153 (210.82.98.153) 449.457 ms 599.814 ms 599.930 ms
25 211.155.191.253 (211.155.191.253) 599.901 ms 599.400 ms 599.881 ms
26 * * *
27 211.155.170.178 (211.155.170.178) 407.652 ms 599.834 ms *
28 * * *
29 * * *
-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch]On
Behalf Of Alan Rader
Sent: Tuesday, March 23, 2004 7:49 AM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: OT: Overseas Network Connections
We cannot test pings or trace routes all the way, the ISP says their
upstream provider, I think China Netcom blocks this kind of stuff and it
is there policy and they block it both ways. I think they are one of
the main pipes into China. If you have time, check out how far you can
get and what you see to ip 211.155.170.161 and let me know. I get as
far as Sprintlink Asia Pacific Region 203.222.38.42.
>From another location I get stopped at 210.82.1.29 which is China
Netcom.
Thanks
-----Original Message-----
From: Gary Smith [mailto:gary at primeexalia.com]
Sent: Monday, March 15, 2004 4:39 PM
To: Alan Rader; mrtg at list.ee.ethz.ch
Subject: RE: [mrtg] OT: Overseas Network Connections
Alan,
Some of the things that you might want to try would be to do an extended
ping. Send a larget packet out and set the wait time to 30 seconds or
so. See if you are still seeing drops or extended delays. My full time
job has a T3 from NY to Croyden and SF to Croyden and we see some
horrible latency during different times of the day. I guess there's
just not enough fiber in the ocean :). Sometimes the delays are
inevitable.
BTW, you should conduct these tests against the external interfaces of
each location and not the VPN portion. If the external tests are fine
then you probably have a problem with something in your VPN
configuration. Without more details I really can't comment on it.
We have setup a 5 legged VPN with 3 locations in California, 1 in
Florida and Tennessee. We did it using Linux, poptop and pptpd clients.
3 of the locations are T1's and the other two are low end DSL's (IDSL
actually). We get latency but never packet loss.
In either event I would also contact the remote ISP and raise the issue
with them.
Gary
-----Original Message-----
From: mrtg-bounce at list.ee.ethz.ch on behalf of Alan Rader
Sent: Mon 3/15/2004 11:20 AM
To: mrtg at list.ee.ethz.ch
Cc:
Subject: [mrtg] OT: Overseas Network Connections
We are opening an office in China (Beijing) and our office
supposedly
has a E1 to the Internet. We have setup a site to site VPN and
I don't
know if this is normal or what, but I think it sucks :(.
Average
response time is over 300ms and I am seeing about 15% packet
loss.
Response times and packet loss are jumping up and down
constantly. Even
right now when it is 3:00am over there, response times are
around 250ms
and packet loss is still up and down from %5 - 30%.
We have a T3 out of our US office that is barely used. Pings
and
traceroutes are dropped somewhere in China, I think China Netcom
or
someone like that.
Thanks for any help.
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