Open AccessCollaborative demonstration of optical‐layer service‐differentiation and load‐balancing in intelligent optical network
Author(s) -
Guo Junhu,
Xu Chongfeng,
Li Hui,
Ji Yuefeng,
Zhao Yongli,
Zhang Jie
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.3852
Subject(s) - computer science , computer network , service (business) , layer (electronics) , openflow , load balancing (electrical power) , optical switch , distributed computing , service layer , enhanced data rates for gsm evolution , optical transport network , optical performance monitoring , electronic engineering , telecommunications , engineering , wavelength division multiplexing , software defined networking , materials science , quality of service , optoelectronics , composite material , grid , wavelength , geometry , economy , mathematics , economics
Optical‐layer service‐differentiation (Diff‐Serv) and load‐balancing abilities are achieved by collaborative implementation of OpenFlow (OF) switches and intelligent optical adapt unit (IOAU) prototypes. Experimental demonstration shows that by adapting OF‐switches as edge routers, optical‐layer Diff‐Serv can be realised by mapping services of different priorities into different lightpaths. Thus, optical fibre is service‐aware rather than merely a blind pipe. In addition, the load‐balancing function of the IOAU can be used to gain reasonable wide area network (WAN) link utilisation. By combining these two abilities, many interesting experimental scenarios and meaningful upper layer applications can be devised.