While blog surfing today, I came across two really excellent posts explaining a couple of “obscure” technologies. These are must reads for CCIE candidates:
Understanding PPP over Frame Relay (PPPoFR)– a great tutorial on PPPoFR, including when and why you would use it in the “real world.”
area nssa translate type7 suppress-fa– Ethan Banks shares a great scenario concerning what happens when two area 0 ABRs border an NSSA area. Who handles the 7-to-5 LSA translation? If an ABR learns a route as an N1 from an NSSA, and the same route as an E1 from another neighbor – which does it prefer? This is a great scenario to mock up in Dynamips.