@techreport{TR-IC-13-23, number = {IC-13-23}, author = {Helder M. N. S. Oliveira \and Nelson L. S. da Fonseca}, title = {{Algorithm for FIPP p-cycle Path Protection in Flexgrid Networks}}, month = {October}, year = {2013}, institution = {Institute of Computing, University of Campinas}, note = {In English, 12 pages. \par\selectlanguage{english}\textbf{Abstract} In optical networks, faults in links and nodes cause massive loss of data even if for short periods. Therefore, protection techniques have been developed to cope with failures. Among these techniques, p-cycle is very attractive since it provides ring-like speed of restoration in mesh topologies. In recent years, the technology of flexgrid networks has emerged as a solution for dealing with the diversity of bandwidth demands of network applications. However, very few investigations have been proposed for path protection in flexgrid networks. This paper introduces a novel algorithm to provide Failure-independent path protecting p-cycle for path protection in flexgrid networks. Results indicate that the 100\% protection for single failures provided by the algorithm produces low overhead under different scenarios and provide protection for dual failures at a certain extend in networks with large connectivity. } }