[180678] in North American Network Operators' Group

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Re: Looking for information on IGP choices in dual-stack networks

daemon@ATHENA.MIT.EDU (Christopher Morrow)
Tue Jun 9 17:00:51 2015

X-Original-To: nanog@nanog.org
In-Reply-To: <AA0CEB47-2B82-49E7-8DF6-9D38B6F9C155@hopcount.ca>
Date: Tue, 9 Jun 2015 17:00:49 -0400
From: Christopher Morrow <morrowc.lists@gmail.com>
To: Joe Abley <jabley@hopcount.ca>
Cc: North American Network Operators' Group <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

On Tue, Jun 9, 2015 at 4:36 PM, Joe Abley <jabley@hopcount.ca> wrote:
>
>
> On 9 Jun 2015, at 16:23, Christopher Morrow wrote:
>
>> On Tue, Jun 9, 2015 at 3:21 PM, Randy Bush <randy@psg.com> wrote:
>>>> If you have a production dual-stack network, then we would like to know
>>>> which IGP you use to route IPv4 and which you use to route IPv6.
>>>
>>> in one network, both ospfs.  in another is-is.  i recommend the latter.
>>>
>>>> We would also like to know roughly how many routers are running this
>>>> combination.
>>
>> why is the question /routers/ and not /networks/ ?
>
> Routers makes more sense to me than networks (IGP, so one network, right?)

that confuses me, the logic I mean...

I suppose in a single network I'd expect to see one igp for an address
family (ospf or ospfv3). Not "eastcoast devices do ospf (stodgy
bastards!) and westcoast goes isis!"

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