The present invention assists {TAIL ~ network administrators} in evaluating {HEAD ~ the “cost} of survivability” for network topologies belonging to both commercial and educational Internet Service Providers  
The present invention assists { TAIL ~ network administrators } in evaluating { HEAD ~ the “ cost } of survivability ” for network topologies belonging to both commercial and educational Internet Service Providers
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH