[c-nsp] how many IGP routes is too many?

[Mark Tinka]

On 2/Apr/20 20:25, Gert Doering wrote:

> (We run "loopbacks in EIGRP or OSPF or OSPFv3, plus BGP for the rest",
> and I sometimes question the wisdom of this...)

Same here. It has been the "gold standard" to scale the routing domain
since about 2003 (or maybe even earlier; I only started teaching about
it in 2004).

It's a design principle that has worked well and stood the test of time.
Perhaps the only challenge I am seeing now is as we run MPLS in the
Metro-E Access, where some vendors deploy very tiny FIB's (think 20,000
slots on the ASR920, for example), there is a risk of exhausting those
due to IGP and LDP state.

I've often found 3107 to be quite complex, and when we get to that
stage, I'm hoping to find a cleverer way to deal with it before the
MX204 becomes the Metro-E gold standard :-).

Mark.



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