HiVelocity Forcing Cogent Outbound
Mar 29, 2009
Could you guys look and see if what I am seeing is right? They offer Global Crossing and Cogent officially. So if I use GLBX looking glass, I get this.
Trying trace from node 'Miami, FL, US' to '96.31.73.xxx'
1 64.214.16.65 (64.214.16.65) 0.761 ms 0.608 ms
2 so0-0-0-2488M.ar2.TPA1.gblx.net (67.17.66.165) 5.690 ms 5.695 ms
3 WBS-CONNECT-LLC.ae0.409.ar2.TPA1.gblx.net (64.214.147.222) 5.731 ms 5.880 ms
4 69.46.31.106 (69.46.31.106) 7.442 ms 6.667 ms
5 node1.sarorahosting.com (96.31.73.2) 15.734 ms 15.993 ms
6 96.31.73.xxx (96.31.73.xxx) 15.861 ms 15.795 ms
Now if I tracert from the VPS to the GLBX router, I get this.
traceroute to 64.214.16.65 (64.214.16.65), 30 hops max, 40 byte packets
1 node1.sarorahosting.com (96.31.73.2) 0.072 ms 0.035 ms 0.008 ms
2 69.46.31.105 (69.46.31.105) 0.731 ms 0.863 ms 1.003 ms
3 gi0-6.na21.b001841-0.tpa01.atlas.cogentco.com (38.99.204.33) 1.147 ms 1.142 ms 1.428 ms
4 gi4-1.core01.tpa01.atlas.cogentco.com (38.20.33.89) 0.818 ms 0.814 ms 0.807 ms
5 po2-0.core01.mco01.atlas.cogentco.com (154.54.27.90) 148.004 ms * *
6 po5-0.core01.jax01.atlas.cogentco.com (66.28.4.146) 5.847 ms 5.839 ms 5.872 ms
7 po5-0.core01.atl01.atlas.cogentco.com (154.54.3.197) 11.953 ms 23.819 ms 23.870 ms
8 te3-3.ccr01.atl01.atlas.cogentco.com (154.54.5.38) 11.721 ms 11.752 ms 11.787 ms
9 te8-2.mpd01.atl04.atlas.cogentco.com (154.54.3.174) 11.962 ms 11.921 ms 11.987 ms
10 ge4-1-0-390-1000M.ar4.ATL1.gblx.net (64.208.110.97) 12.252 ms 12.359 ms 12.444 ms
11 64.214.16.65 (64.214.16.65) 16.026 ms 16.061 ms 16.594 ms
Now what would be causing this to happen?
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Jan 19, 2007
I am having a strange DNS issue on a Cogent circuit using Cogent DNS servers at 66.28.0.45 and 66.28.0.61. What is happening is that some domain requests will timeout the first try. Then subsequent tries will be quick with no timeouts.
I am having a very hard time getting through to Cogent that there might be an issue somewhere and I was wondering if anyone on a Cogent line using the same Cogent DNS servers could also do a test for me to and see if you can reproduce any timeouts.
How I am testing:
- Open nslookup (in linux use: nslookup -timeout=2, windows defaults to 2 seconds)
- Picking a random domain name (favorite cereal.com, movie title.com, brand name.com, random word.com)
- Repeating test for same domain if timeout occurs to see the next query resolve instantly
Here is an example of what Is happening for me:
Code:
[eger@womp ~]# nslookup -timeout=2
> superman.com
;; connection timed out; no servers could be reached
> superman.com
Server: 66.28.0.45
Address: 66.28.0.45#53
Non-authoritative answer:
Name: superman.com
Address: 64.12.47.7
> napaautoparts.com
;; connection timed out; no servers could be reached
> napaautoparts.com
Server: 66.28.0.45
Address: 66.28.0.45#53
Non-authoritative answer:
Name: napaautoparts.com
Address: 208.254.241.70
>
I picked 2 random domains (that were likely not cached at the name server) and they both timeout the first try. Anyone else able to replicate this?
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Costs to setup? (Setup fee?)
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He quoted $10/Megabit... How does this compare to anyone else?
Also is even getting a connection thru Cogent worth it?
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Today I called in and was even asked to hold right as they picked up the phone!! I mean, if your just going to pick up to ask me to hold, why pick up in the first place until you are ready?
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Ps. I know that hosting on a single-homed network is not the smartest thing to do. However they will add more carriers soon so this will not really be an issue. I'm expecting them to not drop Cogent tho, so my question remains
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We went ahead and did a bunch of traceroutes on the AOL session. We found things get bogged down as soon as it hits Cogent's routers in DC (timeouts / no response). These AOL sessions have no problems whatsoever with other sites and other (non cogent hosted sites) loaded fast and without issue. We then tested loading Cogent's own web site from the AOL session and saw the same sluggishness as well. The same happened when we tested a couple other Cogent client sites from AOL. They all pulled very slow (10 to 35+ secs per page) on an AOL/DSL session. This did not happen on the same broadband connection w/out AOL running on top of it. The same pages loaded very fast.
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I have even tried to contact them via gmail, and still not heard back.
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I want to be able to send email for that 1 domain to a Postfix Relay I have in the US.
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How do I achieve this within Exim (a Cpanel Server).
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Is there a way, while live, to set the outbound adapter back to eth0?
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