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Poddano ocenie zachowanie sieci teleinformatycznych w warunkach celowych działań niszczących (ataków). Przebadano zdolność sieci o topologii bezskalowej do zapewnienia przeżywalności usług w przypadku eliminacji jej istotnych węzłów, zwanych centrami. Ukazano istotne różnice w poziomie jakości odtwarzania usług dla awarii będącej następstwem ataku w zestawieniu z przypadkiem awarii losowej. Zaproponowano...
A comparison of service restoration quality in survivable optical transport networks OTN (WDM) degraded due to physical failures or degraded after intentional attack is described. Survivability assumptions are as follows: end-to-end path protection: preplanned node-disjoint backup path for each working path. The lightpaths optimization problem in survivable networks is NP-complete and we propose the...
Network survivability is a capability of a networked system to provide its services despite failures or attacks. Attacks, e.g., due to acts of war, being potentially damaging events, were basically considered in the historical definitions of a survivability phenomenon. The meaning of the term: "network survivability" evolved in the last decade. Recently, attacks replayed the important role...
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