[168908] in North American Network Operators' Group

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Re: carrier comparison

daemon@ATHENA.MIT.EDU (Joshua Goldbard)
Thu Feb 6 11:23:06 2014

From: Joshua Goldbard <j@2600hz.com>
To: Vlade Ristevski <vristevs@ramapo.edu>
Date: Thu, 6 Feb 2014 16:22:48 +0000
In-Reply-To: <52F3B2A8.8080405@ramapo.edu>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Cogent always has the cheapest rates but they also have the most peering di=
sputes of any operator. I've seen intra-data center hops between cogent and=
 Verizon take over 150ms.

As with all things Internet, your mileage may vary. I would not put somethi=
ng with a 5 9'a uptime requirement on cogent without a failover circuit. Fo=
r less sensitive applications it seems like a win.

The Internet is both incredibly robust and fragile simultaneously.

Cheers,
Joshua

Sent from my iPhone

On Feb 6, 2014, at 8:06 AM, "Vlade Ristevski" <vristevs@ramapo.edu> wrote:

> We have had Cogent over Verizon's Fiber for more than a few years now. Co=
gent goes down once at year at minimum. They had 2 outages in a single day =
a couple days ago in Northern NJ.  One in the AM "..caused by a power outag=
e in a vendor data center where Cogent is collocated." They went on to have=
 another outage at around 9:30 PM on the same day for which I'm still waiti=
ng for an RFO. During this outage, they still were advertising our BGP rout=
es so we didn't fail over to our 2nd provider. I notice that happens alot w=
ith them. When they go down, they still advertise your routes.
>=20
> As far as price goes, for us Cogent is cheap but Lightpath is cheaper.
>=20
> Our college is kind of far from things so we don't have a lot of outside =
fiber coming. The last mile fiber for both of our connections are different=
 from our Internet providers. I've never had a big issue with the two worki=
ng with each other. The only issue we had is I suspected we weren't getting=
 as much bandwidth as we paid for. They had to work out where the policer a=
nd/or bottle neck was. This is the only issue we had in 5 years with this s=
et up and it got resolved. IME, when there is a full outage, it's always be=
en clear who the responsible party is.
>=20
>=20
>=20
>=20
>=20
> On 2/6/2014 10:17 AM, Adam Greene wrote:
>> Hi,
>>=20
>> =20
>> We're a small ISP / datacenter with a Time Warner fiber-based DIA contra=
ct
>> that is coming up for renewal.
>>=20
>> =20
>> We're getting much better pricing offers from Cogent, and are finding ou=
t
>> what Level 3 can do for us as well. Both providers will use Time Warner
>> fiber for last mile.
>>=20
>> =20
>> My questions are:
>>=20
>> -          Will we be sacrificing quality if we spring for Cogent?
>> (yesterday's Cogent/Verizon thread provided some cold chills for my spin=
e)
>>=20
>> -          Is there a risk with contracting a carrier that utilizes anot=
her
>> carrier (such as Time Warner) for the last mile? (i.e. if there is a
>> downtime situation, are we going to be caught in a web of confusion and
>> finger-pointing that delays problem resolution)?
>>=20
>> -          How are peoples' experiences with L3 vs TWC?
>>=20
>> =20
>> Although I assume everyone on the list would be interested in what other=
s
>> have to say about these questions, out of respect for the carriers in
>> question, I encourage you to email frank opinions off list.
>>=20
>> =20
>> Or if there are third party tools or resources you know that I could con=
sult
>> to deduce the answers to these questions myself, they are most welcome.
>>=20
>> =20
>> Thanks,
>>=20
>> Adam
>>=20
>=20


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