Many ways to go about it.  I'm not sure any is more correct than
another.  As long as you aren't wasting the router's CPU sending ospf
hello's out all of the SVI interfaces.

For my personal preference, I try to enumerate the networks in the the
ospf process.
This allows me to quickly see all the networks being announced on that
router just by sh run | b router ospf.  The list may get long.  but it
is a definitive list of what that router is allowed to announce.  You
can always supernet if you have contiguous space, or break it off into
another area, and range, if appropriate.

I'm also a fan of using passive-interface default, and no
passive-interface <interface> for the uplinks, in the routing process.
  Also for centralization.  I can see exactly what interfaces should
have OSPF neighbors.  This also gives you the control to add
additional SVIs, without any additional interface commands.

I tend to treat redistribute connected as a bad practice, simply
because, if an interface is created and IP'd, i don't necessarily ever
want it to instantly start announcing its network through my routing
protocol.  One wrong subnet typo on a new SVI, can instantly cause
issues...

I'm sure you'll hear a few opinions on how to do it, as there are a
few approaches.  If there are cpu or network benefits for one way over
another, I'd love to hear them.



--Pete
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