Hi. Currently running hub&spoke vpn config with around 900 spokes, two vpns to each + ospf on top of it. Spokes splited around 100 per area so pretty big LSA database.
As ros7 support dynamic bgp neighbors I'm considering switching to iBGP, but never had experience with it.
Any advices? Pros cons? How many routers can speak in singe AS? Do I need to split spokes to different AS as in areas using ospf? Or can I use single AS for all routers?