[187315] in North American Network Operators' Group

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Re: The IPv6 Travesty that is Cogent's refusal to peer Hurricane

daemon@ATHENA.MIT.EDU (joel jaeggli)
Wed Jan 27 02:34:12 2016

X-Original-To: nanog@nanog.org
To: Jared Mauch <jared@puck.nether.net>, Joe Maimon <jmaimon@ttec.com>
From: joel jaeggli <joelja@bogus.com>
Date: Tue, 26 Jan 2016 23:31:57 -0800
In-Reply-To: <887B1D5C-9901-4EEC-9442-10FAB7E8D106@puck.nether.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

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On 1/25/16 11:06 AM, Jared Mauch wrote:
> My understanding is this was mostly legacy from devices that did not
> carry full Rib and fib. There were tricks to avoid ending up on these
> skinny devices if you wanted.
>=20
> Life in the core has changed a lot in recent years from 6500/7600 and
> foundry/brocade class devices to a more interesting set in the
> pipeline or released.
>=20
> There are some limited rib-> fib download boxes that could slice
> traffic in cost effective ways that the price conscious consumer will
> likely push the market to.

There are also of course variations on this. An an aggregation router
may have quite limited FIB, e.g. enough for customer routes yet still
have a full rib in it's control-plane, at which point it needs to
default towards devices which do have a FIB in place.  assuming a single
hob peering it would be rather hard to identify this case as a customer,
though if your neighbor has an Arista mac address for example that might
be a logical conclusion.

> Jared Mauch
>=20
>> On Jan 22, 2016, at 3:28 PM, Joe Maimon <jmaimon@ttec.com> wrote:
>>=20
>>=20
>> I have a pending request to get that multi-hop setup. I was told
>> that it was now a special request and they would "try" to get it
>> done and these days all their routers had full table capacity and
>> they no longer used the multi-hop.
>=20



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