TY - GEN AU - Amr Saad Ahmed Ayad AU - Khaled Mohamed Fouad Elsayed , AU - Sanaa Elola Hanafi Ahmed , TI - Dynamic service provisioning in optical networks / PY - 2007/// CY - Cairo : PB - Amr Saad Ahmed Ayad , KW - All - optical network KW - Demand grooming KW - Light - trail technology N1 - Thesis (Ph.D.) - Cairo University - Faculty Of Computers and Information - Department Of Information Technology; Issued also as CD N2 - This thesis tackles the routing problem of light - trails under three survivability level.The first scheme is that of non - protected service (1+0) in which a single span failure can disrupt the service.The second scheme is that of dedicated protection (1+1) where spare network capacity is reserved on a backup path that bears the service traffic upon failure of the working path UR - http://172.23.153.220/th.pdf ER -