TY - JOUR
T1 - Synchronization in a Random Length Ring Network for SDN-Controlled Optical TDM Switching
AU - Kamchevska, Valerija
AU - Cristofori, Valentina
AU - Da Ros, Francesco
AU - Guo, Bingli
AU - Jackson, Chris
AU - Fagertun, Anna M.
AU - Ruepp, Sarah
AU - Nejabati, Reza
AU - Simeonidou, Dimitra
AU - Dittmann, Lars
AU - Berger, Michael
AU - Oxenløwe, Leif K.
AU - Galili, Michael
PY - 2017/1
Y1 - 2017/1
N2 - In this paper we focus on optical time division multiplexed (TDM) switching and its main distinguishing characteristics compared with other optical subwavelength switching technologies.We review and discuss in detail the synchronization requirements that allow for proper switching operation. In addition, we propose a novel synchronization algorithm that enables automatic synchronization of software defined networking controlled all-optical TDM switching nodes connected in a ring network. Besides providing synchronization, the algorithmalso can facilitate dynamic slot size change and failure detection. We experimentally validate the algorithm behavior and achieve correct operation for three different ring lengths. Moreover, we experimentally demonstrate data plane connectivity in a ring network composed of three nodes and show successful wavelength division multiplexing space division multiplexing transmission and switching of data bursts when using the proposed algorithm to provide synchronization.
AB - In this paper we focus on optical time division multiplexed (TDM) switching and its main distinguishing characteristics compared with other optical subwavelength switching technologies.We review and discuss in detail the synchronization requirements that allow for proper switching operation. In addition, we propose a novel synchronization algorithm that enables automatic synchronization of software defined networking controlled all-optical TDM switching nodes connected in a ring network. Besides providing synchronization, the algorithmalso can facilitate dynamic slot size change and failure detection. We experimentally validate the algorithm behavior and achieve correct operation for three different ring lengths. Moreover, we experimentally demonstrate data plane connectivity in a ring network composed of three nodes and show successful wavelength division multiplexing space division multiplexing transmission and switching of data bursts when using the proposed algorithm to provide synchronization.
KW - Optical switches
KW - Software defined networking
KW - Synchronization
KW - Time division multiplexing
UR - http://www.scopus.com/inward/record.url?scp=84990967367&partnerID=8YFLogxK
U2 - 10.1364/JOCN.9.000A26
DO - 10.1364/JOCN.9.000A26
M3 - Article (Academic Journal)
AN - SCOPUS:84990967367
SN - 1943-0620
VL - 9
SP - A26-A34
JO - IEEE/OSA Journal of Optical Communications and Networking
JF - IEEE/OSA Journal of Optical Communications and Networking
IS - 1
M1 - A26
ER -