Fragmentation-aware service provisioning for advance reservation multicast in SD-EONs.

Area of Science:

• Telecommunications Engineering
• Computer Networking
• Optical Networks

Background:

• Elastic Optical Networks (EONs) are crucial for high-capacity data transmission.
• Dynamic service provisioning for multicast requests presents significant challenges in EONs.
• Advance reservation (AR) is essential for guaranteed service delivery.

Purpose of the Study:

• To develop and evaluate novel service provisioning schemes for dynamic AR multicast requests in EONs.
• To address the 2D fragmentation issue in light-tree provisioning.
• To demonstrate the efficacy of proposed algorithms using a Software-Defined EONs (SD-EONs) testbed.

Main Methods:

• Joint service scheduling and routing and spectrum assignment (RSA) algorithms were proposed.
• An integrated two-dimensional fragmentation-aware RSA (2D-FMA) algorithm was developed.
• Experiments were conducted on a Software-Defined EONs (SD-EONs) control plane testbed utilizing OpenFlow (OF).

Main Results:

• The proposed 2D-FMA algorithm effectively alleviates 2D fragmentation.
• Experimental results demonstrate superior blocking performance compared to existing methods.
• The 2D-FMA algorithm achieved the shortest average setup delay.

Conclusions:

• The integrated 2D-FMA algorithm offers an efficient solution for dynamic AR multicast provisioning in EONs.
• SD-EONs provide a viable platform for implementing and testing advanced network control algorithms.
• The proposed schemes enhance the performance and reliability of multicast services in optical networks.