[c-nsp] OSPF LSA Type 3 / 5 question ...

[Juergen Marenda]

On Fri, Feb 3, 2017 at 1:05 PM, Bryan Holloway <bryan at shout.net> wrote:
> > Imagine an ABR bordering areas 0 and 1 which is summarizing 10.0.0.0/8 
> > to the backbone.> 
> >
>> Downstream is a router running OSPF with the ABR. On that router is a 
> > static route to yet another device that does not support OSPF. Let's 
>>  say that static route is 10.100.0.0/24.
> 
> Am I correct in understanding the redistribution is in area 1?
> 
> If so, this link may help: https://learningnetwork.cisco.com/thread/102826
> 
> The idea is to turn area 1 into an NSSA area, so the static would be a
type 7, and you could then drop the type 5 LSAs on the ABR.

> The idea is cool, but I am not sure whether I would really want this in
production.
> 
> BGP instead of areas anyone?

Ospf reacts much faster than bgp, iff you have some sort of
redundancy/backup line.
You may also want to inject default into the totally-stubby-not-so-stubby
area,
And implement some sort of prefix filtering on both sides.

Just my 0.01$

Juergen.