Here as well. We're a small content provider, and we have cogent as one
of our ISPs. Though I wouldn't feel comfortable using only them, my
experience has been pretty good. Their NOC is competent, and service has
been reliable.
seph
Bret Clark bcl...@spectraaccess.com writes:
I hate when these questions get asked, because as the saying goes...a
person happy with a service will only tell one other person, but a
person unhappy with a service with tell ten other people. So I think a
lot of times you'll get skewed responses...but with that said, we've
been using Cogent now for a year and no complaints at all. Had some
minor downtime back in April due to a hardware failure, but Cogent
responded extremely quickly, scheduled an emergency maintainance and had
us running rather quickly. Face it, hardware problems happen so I can't
blame Cogent on the failure. The few times I've dealt with their tech
support group I found 99% of them very knowledgeable and I know that
when we initially turned on the link they went the extra mile to resolve
some initial problems during the weekend time frame.
My 2 cents and with any provider mileage will vary,
Bret
On Thu, 2009-06-11 at 15:01 +0100, Andrew Mulholland wrote:
At $JOB-1 we used Cogent.
Lots of horror stories had been heard about them.
We didn't have such problems.
Had nx1Gig from them.
On the few occasions where we had some slight issues, I was happy to
be able to get through to some one useful on the phone quickly, and
not play pass the parcel with call centre operatives.
and at least in the quantities we were buying they were significantly
better value than others, which was the primary reason we went with
them.
andrew
On Thu, Jun 11, 2009 at 2:55 PM, Paul Stewartpstew...@nexicomgroup.net
wrote:
Our experience with them was at least one major (longer than an hour)
outages PER MONTH and many of those times they were black holing our
routes in their network which was the most damaging aspect. The outages
were one thing but when our routes still somehow managed to get
advertised in their network (even though our BGP session was down) that
really created issues. I have heard from some nearby folks who still
have service that it's gotten better, but we are also in the regional
offering when it comes to IP Transit and have sold connections to many
former Cogent customers who were fed up and left.
I have found with Cogent that you will get a LOT of varying opinions on
them - there are several other players (at least in our market) that are
priced very similar now and have a better history behind them.
The specific de-peering issues never effected us much due to enough
diversity in our upstreams and a fair amount of direct/public peering...
Thanks,
Paul
-Original Message-
From: Justin Shore [mailto:jus...@justinshore.com]
Sent: Thursday, June 11, 2009 9:47 AM
To: NANOG
Subject: Cogent input
I'm in search of some information about Cogent, it's past, present and
future. I've heard bits and pieces about Cogent's past over the years
but by no means have I actively been keeping up.
I'm aware of some (regular?) depeering issues. The NANOG archives have
given me some additional insight into that (recurring?) problem. The
reasoning behind the depeering events is a bit fuzzy though. I would be
interested in people's opinion on whether or not they should be consider
for upstream service based on this particular issue. Are there any
reasonable mitigation measures available to Cogent downstreams if
(when?) Cogent were to be depeered again? My understanding is that at
least on previous depeering occasion, the depeering partner simply
null-routed all prefixes being received via Cogent, creating a blackhole
essentially. I also recall reading that this meant that prefixes being
advertised and received by the depeering partner from other peers would
still end up in the blackhole. The only solution I would see to this
problem would be to shut down the BGP session with Cogent and rely on a
2nd upstream. Are there any other possible steps for mitigation in a
depeering event?
I also know that their bandwidth is extremely cheap. This of course
creates an issue for technical folks when trying to justify other
upstream options that cost significantly more but also don't have a
damaging history of getting depeered.
Does Cogent still have an issue with depeering? Are there any
reasonable mitigation measures or should a downstream customer do any
thing in particular to ready themselves for a depeering event? Does
their low cost outweigh the risks? What are the specific risks?
Thanks
Justin
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