00370nas a2200121   4500000000100000008004100001260000800042100001300050700002400063700001600087700002200103245012300125       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