nanog mailing list archives

Re: Cogent for ISP bandwidth


From: Peter Kristolaitis <alter3d () alter3d ca>
Date: Mon, 14 May 2012 19:00:27 -0400

I use Cogent as one of our upstreams at work, and I'll basically reiterate what others have said -- overall, I'd have no problems recommending them. Their routing can sometimes be a little weird (though this is MUCH better now than it was a couple of years ago), so I wouldn't necessarily use them as my main provider for latency-sensitive applications, but this isn't normally a problem with 'general' traffic. The A peer/B peer stuff they used to do was definitely weird, but they migrated us away from that configuration a few months ago (peering with them out of TorIX). Presumably they're doing that across the rest of their network. Their support has been fantastic in my experience..

I'd have to say they're probably the least painful provider I've dealt with overall (unlike some providers *cough*Telus*cough* who I've been waiting 7 weeks for to set up a freaking BGP session...). I'd have no problems picking Cogent as a provider, though of course as one of many providers for redundancy (which would be no different than any other single provider).

- Pete


On 5/14/2012 6:33 PM, Michael J McCafferty wrote:
Jason,

I agree with John. You can't use them as your only provider, but you
wouldn't do that with *any* provider. I will add that they answer the
phone quickly, and the person who answers usually has a clue, has access
to the routers, and can be helpful. It's one of the benefits that they
really only sell one product. Honestly, I think their support is better
than most and the deliver what they say or better.

In the past the had a A peer / B peer setup that was a little funky, but
I think they are getting rid of that as they upgrade hardware throughout
their network.

We do also use Level3 (and others). As long as they come in to your
facility on different fiber or otherwise meet you physical diversity
requirements, you should be pretty happy. Add low commits to other
providers for more diversity as needed.

Good luck,
Mike

On Mon, 2012-05-14 at 15:12 -0700, John T. Yocum wrote:
In my experience Cogent is fine when used in a BGP mix. When we used
them, our service was quite reliable. Routing was funky at times, but we
never had packet loss.

--John

On 5/14/2012 3:03 PM, Jason Baugher wrote:
The emails on the Outages list reminded me to ask this question...

I've done some searching and haven't been able to find much in the last
3 years as to their reliability and suitability as an upstream provider.
For a regional ISP looking for GigE ports in the Chicago/St. Louis area,
is Cogent a reasonable solution? Our gut feeling is that they don't
stack up against a Level3 or Sprint, but they are being very aggressive
with pricing to try and get our business.

Thanks,
Jason


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