With the emergence of high-bitrate applications, cross stratum optimization （CSO） attracts the interest of network operators because of its application in the joint optimization of optical networks and application s...With the emergence of high-bitrate applications, cross stratum optimization （CSO） attracts the interest of network operators because of its application in the joint optimization of optical networks and application stratum resources. Given the large-scale growth and high complexity of optical networks, achieving a more effective, accurate, and practical CSO becomes an important research focus. In this letter, we present a CSO-oriented, unified control architecture for OpenFlow-enabled triple-M optical networks. A novel dynamic global load balancing （DGLB） strategy with dynamic resource rating for CSO is presented based on the proposed architecture. The DGLB strategy is then compared with four other strategies by conducting experiments on a SOFT-based testbed with 1000 virtual nodes.展开更多
基金supported by the National"863"Program of China(No.2012AA011301)the National"973"Program of China(No.2010CB328204)+3 种基金the National Natural Science Foundation of China(Nos.61271189,61201154,and 60932004)the Research Fund for the Doctoral Program of Higher Education of China(No.20120005120019)the Fundamental Research Funds for the Central Universities(No.2013RC1201)the Fund of State Key Laborotory of Information Photonics and Optical Communications(BUPT)
文摘With the emergence of high-bitrate applications, cross stratum optimization （CSO） attracts the interest of network operators because of its application in the joint optimization of optical networks and application stratum resources. Given the large-scale growth and high complexity of optical networks, achieving a more effective, accurate, and practical CSO becomes an important research focus. In this letter, we present a CSO-oriented, unified control architecture for OpenFlow-enabled triple-M optical networks. A novel dynamic global load balancing （DGLB） strategy with dynamic resource rating for CSO is presented based on the proposed architecture. The DGLB strategy is then compared with four other strategies by conducting experiments on a SOFT-based testbed with 1000 virtual nodes.
