This paper introduces the routing and signaling processes of segmented protection and restoration in PCE-based multi-domain heterogeneous optical networks. To evaluate the performance of protection and restoration, a network platform with commercial SDH and OTN equipment is implemented. Results show that the segmented protection and restoration have acceptable performance on the network platform.
['W. Liu', 'Qingshan Li', 'Rui Lu', 'Xin Wan', 'Nan Hua', 'Xiaoping Zheng', 'Bingkun Zhou', 'Xiaohui Chen', 'Pi Wang']
Implementation of segmented protection and restoration in PCE-based multi-domain heterogeneous optical networks