Multi-layer network architecture in support of end-to-end transparent optical connectivities  

作　　者：GUO HongXiang WU Jian HONG XiaoBin LIN JinTong 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

出　　处：《Science China(Information Sciences)》2011年第3期674-682,共9页中国科学（信息科学）（英文版）

基　　金：supported by Chinese University Scientific Fund (Grant No. 2009RC0408);the National High-Tech Research & Development Program of China (Grant Nos. 2009AA01Z256, 2009AA01Z253, 2008AA01A331)

摘　　要：In order to effectively accommodate a wide variety of emerging and future applications with diverse requirements, an intelligent optical network capable of the rapid and resilient delivery of on-demand transparent transmission capacity is required. This paper investigates a multi-layer network architecture where a generalized multiple protocol label switching （GMPLS） controlled transparent wavelength switched optical network （WSON）, as the transport core, collaborates with multiple client optical burst switching （OBS） networks distributed at the edge. Dynamic interworking mechanism as well as the related signaling/routing protocol ex- tensions for multi-QoS burst streams transmission among different OBS domains are proposed so as to provision an end-to-end （e2e） transparent optical connectivity with on-demand bandwidth to end-users. Moreover, the survivability of this transparent optical connectivity is also addressed. To validate the feasibility of this architecture, an integrated OBS/WSON network testbed was constructed, and stable e2e transparent connectivities were successfully demonstrated for an efficient multi-QoS burst streams transmission.In order to effectively accommodate a wide variety of emerging and future applications with diverse requirements, an intelligent optical network capable of the rapid and resilient delivery of on-demand transparent transmission capacity is required. This paper investigates a multi-layer network architecture where a generalized multiple protocol label switching （GMPLS） controlled transparent wavelength switched optical network （WSON）, as the transport core, collaborates with multiple client optical burst switching （OBS） networks distributed at the edge. Dynamic interworking mechanism as well as the related signaling/routing protocol ex- tensions for multi-QoS burst streams transmission among different OBS domains are proposed so as to provision an end-to-end （e2e） transparent optical connectivity with on-demand bandwidth to end-users. Moreover, the survivability of this transparent optical connectivity is also addressed. To validate the feasibility of this architecture, an integrated OBS/WSON network testbed was constructed, and stable e2e transparent connectivities were successfully demonstrated for an efficient multi-QoS burst streams transmission.

关 键 词：multi-layer network transparent optical network OBS WSON GMPLS 

分 类 号：TN915.0[电子电信—通信与信息系统] TN929.5[电子电信—信息与通信工程]