On 19/Jul/18 21:32, [email protected] wrote:
>
> 1. Is there a better way of doing the HA than having adjacencies to the
> router (can be 3 hops away) over two different VLANs and different OSPF cost
> over trunk links with BFD enabled?
I'd say don't run core links in VLAN's.
What adjacencies are you referring to, IGP?
> 2. Do you find less practical a MPLS network on a multi-area design vs a
> single-area design?
We use IS-IS in a single level (L2-only). This would be the same as Area
0 in OSPF.
My understanding is that a single Area 0 for OSPFv3 should scale as well
as L2-only in IS-IS. But I don't know many folk that run both IPv4 and
IPv6 in a single OSPFv3 deployment (even though it can be done).
> 4. At what point would you introduce RouteReflectors in the network (e.g.
> when 5, 10, 20 IBGP connections?)
Day 1, regardless of number of routers. Because, you will grow...
Mark.
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