00383nas a2200133   4500000000100000000000100001008004100002260000800043100001300051700002400064700001600088700002200104245012300126       2007                            d  bACM1 aA. Busic1 aTadeusz Czachórski1 aJ. Fourneau1 aKrzysztof Grochla00aLevel Crossing Ordering of Markov Chains: Proving Convergence and Bounding End to End Delays in an All Optical Network