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Very Interesting ... »
« cost of internet bandwidth != cost of service delivery  
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espaeth
Digital Plumber
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join:2001-04-21
Minneapolis, MN
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Discounted price for partial access

Interesting Cogent would take the discount route instead of improving their network, but they did lose a good chunk of customers after the recent Telia depeering. Given that they've been depeered a few times in the past, with Level(3) and Telia being the most recent I would be hesitant to sign a 3 year agreement with them even if they were used as only one of several upstream providers.

Latency performance with Cogent isn't always ideal either as they are missing large sections of mid-continental routing. Want to go from Chicago to Jacksonville? They don't have a link between Chicago and Atlanta like most carriers; instead you get to take the path all the way up through Boston and then back down the coast.



Dogfather
Premium
join:2007-12-26
Laguna Hills, CA
You get what you pay for I suppose.


53059959
Temp banned from BBR more then anyone

join:2002-10-02
PwnZone
reply to espaeth
thats not unusual latency.

most providers go chicago -> dallas or chicago -> new york city.

Only a select few providers don't go from atlanta -> nyc or dallas.

jrowley

join:2006-09-06
Mauldin, SC
reply to espaeth
Would you be happier if they just did what other carriers do and enable 'no mpls ip propagate-ttl' or the equivalent vendor command? Voila. Looks like direct connectivity to you.

Hops != bad connectivity.


Jerm

join:2000-04-10
Richland, WA
reply to espaeth
Poor geographic routing choices isn't limited to Cogent. If you use Verizon in my area 50% of the time to get to a Seattle based site you go down to Cali then back up (seattle-sfo-seattle).


espaeth
Digital Plumber
Premium,MVM
join:2001-04-21
Minneapolis, MN
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reply to jrowley
said by jrowley See Profile :

Hops != bad connectivity.
I didn't say anything at all about hops, I said they had less than ideal physical pathways in some area.

Compare it to another facility that is connected to Level(3) in Tampa (even further south than Jacksonville) and round trip latency is about 10ms less than Cogent because Chicago and Atlanta are directly connected. Whether that 10ms breaks things for you or not depends entirely on your application.



espaeth
Digital Plumber
Premium,MVM
join:2001-04-21
Minneapolis, MN
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reply to 53059959
said by 53059959 See Profile :

Only a select few providers don't go from atlanta -> nyc or dallas.
I don't know if it's necessarily that few.

Global Crossing, Telia, Level(3), Sprint, Qwest, Verizon/UUNet and XO all have direct paths from ORD to ATL.

ATT & Savvis route via St Louis.


SLD
Premium
join:2002-04-17
·Comcast

reply to espaeth
Just for kicks, I ran a trace from Houston to your facility in Jacksonville - a much different story:


53059959
Temp banned from BBR more then anyone

join:2002-10-02
PwnZone
reply to espaeth
it may say its a direct route on the network map, and the reverse dns may go from directly atl to chi but you'll notice most of the time the latency is roughly the same as if it were going through new york, because it is
Forums » Cogent 'McBandwidth' Gets CheaperVery Interesting ... »
« cost of internet bandwidth != cost of service delivery  


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