We're about to implement a new WAN running OSPF which we intend to run alongside our current EIGRP network using route redistribution.
My question is - If a route within the OSPF network goes down, will the L3 switches in the EIGRP network learn about the downed route, and if so how does this process work? Vice versa also.
Any answers much appreciated, as would any issues anyone knows of re OSPF - EIGRP route-redistribution, as this is a first for all of us here!
Redistribution is not a one-off as such. If for example you added a new route to OSPF and as long as you weren't filtering that route in terms of redistribution then yes it would be redistributed into EIGRP.
So it's not a regular update as such, but updates will be made if new routes are added or existing routes are removed.