At present, in the OTN (optical transmission network) route planning, most of the primary routes are mainly shortest paths, and the alternate routes are mainly the second shortest paths. Once common links or devices fail, it is easy to increase the risk of network operation. Aiming at this problem, this paper proposes an algorithm, the optimizing target of which is minimizing the intersection degree of the active and alternate routes of the whole network. The OSNR is closely related to the network transmission quality. The lower the OSNR, the higher the bit error rate. If the OSNR is below the threshold, the optical channel cannot be opened. Considering the active and alternate routing time delay, the intersection of the active and alternate routes and OSNR, the algorithm establishes the service routing planning algorithm model with the OSNR, optical power, and the number of each optical link bearer services. Finally, it is verified that the mechanism can reduce the intersection degree of active and alternate routes of the whole network while ensuring the OSNR and the number of optical link bearer services is secure, thereby reducing the risk of network operation.
[1]
Qi Bing.
Multiple ant colony algorithm load balancing for network sessions
,
2008
.
[2]
Cai We.
An Optimized Service Routing Allocation Method for Electric Power Communication Network Considering Reliability
,
2013
.
[3]
Shivani Sharma,et al.
Analysis of metrics: Improved hybrid ACO-PSO based routing algorithm for mobile ad-hoc network
,
2016,
2016 Fourth International Conference on Parallel, Distributed and Grid Computing (PDGC).
[4]
Shaoyong Guo,et al.
Risk Balancing Based Routing Mechanism for Power Communications Service: Risk Balancing Based Routing Mechanism for Power Communications Service
,
2014
.
[5]
Yang Wang,et al.
An OSNR calculating method based on network topology for optical network
,
2017,
2017 16th International Conference on Optical Communications and Networks (ICOCN).