Looking for information on IGP choices in dual-stack networks

Wed Jun 10 00:59:19 UTC 2015

I/we (Philip and I) attempted to keep the question as generic as 
possible, allowing folks to state the IGPs they use, in whichever 
combination or in some cases (as we can see), more complex deployments.

I would agree with statements form Joel earlier with respect to cases 
where early vendor support may have influenced some network zones 
(inside a given AS) to support a different IGP (his case of OSPFv3 for 
devices which lacked IS-IS support is one I did face a few years back as 
well in the DC with respect to Load balancing  and Firewall devices).

The merger one was a new one for me, but it seems to reflect some 
peoples reality.

regards,

Victor K

On 2015-06-09 7:41 PM, Joe Abley wrote:
> Hi Randy,
>
> On Jun 9, 2015, at 18:08, Randy Bush <randy at psg.com> wrote:
>
>>> Routers makes more sense to me than networks (IGP, so one network,
>>> right?)
>> so you are thinking of a network where half the routers run is-is one
>> quarter ospf/ospfv2 and one quarter ospf/ripv3.  right.
> No, not at all. I thought Victor was asking "what IGP" and "how many
> routers use it in your network". I assumed he was interested in
> whether the size of the network influenced the IGP choice.
>
> Perhaps I misunderstood, because apparently I was the only one who
> read it that way.
>
>
> Joe