Folks, I have been using Opnet for network & application analysis and it has been working great.
Last week I saw a presentation in which an Opnet module was used to run simulations of BGP<->OSPF redistribution. From what was presented to me, we could import Cisco IOS configuration from our production environment into Opnet. Then we could make changes in the BGP,OSPF, etc configuration and run the simulation, watching the routing behavior, paths, etc caused by such configuration change before making the changes in production.
That sounds appealing to me.
Anyone here has actually used Opnet in depth in order to tell me whether the feature I mentioned above is practical and efficient?