First interoperability demonstration for software-defined transport network (SDTN)
First interoperability demonstration for software-defined “transport” network (SDTN) has been successfully conducted at showcase in the international conference and exhibition on IP+Optical Network (iPOP2012), which was held at Keio University, Kanagawa, Japan from 31st May to 1st June, 2012.The concept of SDTN is a virtualized transport network customized on user’s demand as shown in Fig. 1. Multiple virtual transport networks (slices) are created on multi-technology transport for each application using Network OS.
Fig. 1 Concept of software-defined “transport” network (SDTN).
Features of the SDTN interoperability demo is summarized in Fig. 2. We have successfully created multiple virtual transport networks (slices) on multiple transport technologies using multiple control mechanisms.
Configuration of the showcase network is summarized in Fig. 3 and Table. 1. Nippon Telegraph and Telephone Corporation (NTT) and KDDI R&D Laboratories Inc. (KDDI labs) (Carriers), NEC Corporation (NEC), Hitachi Ltd. (Hitachi) and Juniper Networks (Juniper) (System vendors), TOYO Corporation (TOYO) (Test equipment vendor) and Keio University (Keio) participated in this showcase. The showcase network consisted of five domains which were separately managed by different controllers such as OpenFlow controller (OFC) ver1.0, OFC ver1.1 and GMPLS controller as shown in Table 1. Multilayer and multi-technology network with a few switching capabilities was formed in each domain. Multiple virtual transport paths have successfully created to form multiple slices. Virtual transport paths are created not only within each single domain but also over federated multi-domains (Domain #2-#0-#1) with multi-vendor equipment. The appearance of the multi-vendor equipment is shown in Fig. 4. We have successfully done the interoperability demonstration for SDTN in the first time.
Fig. 3 Overview of iPOP2012 Showcase network
Table.1 Domain configuration of iPOP2012 Showcase network
Fig. 4 iPOP2012 showcase demo booth.
Please refer press release (in Japanese) here.