[c-nsp] LDPv6 Census Check

[Mark Tinka]

On 11/Jun/20 12:28, Robert Raszuk wrote:

>
> Spot on ! OSPF is not any better. 
>
> And yes you can build a global flat IGP. But this is not a design I
> would endorse in most networks. 
>
> Reason is that most networks do not have latest connectivity
> restoration techniques and still wait for typical "IGP convergence" So
> if you flood globally you need to adjust your IGP & SPF timers with
> the notion of global flooding. 
>
> If you however scope your flooding domains to be relatively small (say
> per 1-few regions in a continent) you can easily and safely make those
> timers much more aggressive hence significantly reducing connectivity
> restoration times upon failures.

Well, we operate a single IS-IS L2 domain across 3 continents.

We use what-I'd-call aggressive IS-IS detection and convergence timers,
in addition to BFD and LFA/IP-FRR.

We do very okay.

Mark.