Hi- I have situation where I will be running OSPF and will be recieving routes on one interface redistributed from BGP so these will be OSPF External Type 2 routes - on another interface I will be recieving routes in OSPF so these will be "intra area".
My question is how I do have the external E2 routes installed in preference to the intra area ones ? Ie the external routes are to be preferred while the intra area ones are back up.
Although OSPF has a single AD for all three kinds of route by default, you can specify different ADs for the different route types. That is what confused me in the first place. But if OSPF arbitrates a priori between O/IA/E, then it is to no avail except in arbitrating between routes from different OSPF processes, as pointed out by Etienne.