[106404] in North American Network Operators' Group
Re: Arbitrary de-peering
daemon@ATHENA.MIT.EDU (William Waites)
Mon Jul 28 12:41:38 2008
From: William Waites <ww@styx.org>
To: Jon Lewis <jlewis@lewis.org>
In-Reply-To: <Pine.LNX.4.61.0807281217250.7234@soloth.lewis.org>
Date: Mon, 28 Jul 2008 18:41:18 +0200
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Le 08-07-28 =E0 18:27, Jon Lewis a =E9crit :
> Bit bucket path.
Evidently.
>> As I said, this is surprising behaviour, but not simple de-peering. =20=
>> And I'm
>
> Why is it surprising? Sounds more like a repeat performance to me.
>
> Back when Level3 depeered Cogent, it was said that Cogent was =20
> already buying transit from Verio to reach at least some networks =20
> they weren't peering with. After the depeering, why didn't Cogent =20
> get to Level3 (and vice versa) via Verio?
Surprising because, Cogent (or Telia, but from what you say here, =20
looks like Cogent),
presumably put themselves in a breach of contract position with their =20=
(end-user or stub
AS) customers who one would imagine have bought "Internet service" =20
from them. Given
that they have some reasonably big/important customers it is =20
surprising that they would
take that risk, and even more surprising that it didn't bite them too =20=
hard. By maybe I am
just easily surprised.
>> Tier 1 has enough peering relationships with enough other Tier 1 =20
>> networks that they can always buy temporary transit privileges over =20=
>> an existing link.
>
> Tier 1 means you don't buy transit, no?
Maybe a slightly revised definition of Tier 1 is in order -- a =20
provider that doesn't buy transit
and doesn't sell to end-users or stub systems. Doing either of these =20
things would degrade
them in the nomenclature by 0.5. Doing both of these things makes a =20
Tier 2 provider which
had better have transit from more than one upstream. This way =20
innocents don't suffer the
collateral damage from games of chicken among the titans (unless they =20=
were silly enough
to get their only Internet connection from a Tier 1.5 provider). Oh =20
well.
Cheers,
-w=
