INNOVATIVE SUBMARINE CABLE SYSTEM APPLICATIONS WITH CONVERGED PACKET OPTICAL TRANSPORT PLATFORM Daiki Miwa (NEC Corporation) d-miwa@bk.jp.nec.com
Current Approach of Submarine Cable Systems for Exponential Increase of Global IP Traffic New Cable Systems New Landing Points Capacity Upgrades Flexible Network Higher Connectivity System Capacity 1 Enhanced DWDM OADM 40Gb/s Transmission Restoration Efficient Various Ethernet Extra Traffic Bandwidth Use Service Interfaces Packet Transport Shared Protection Direct Wavelength Access Along with exponential increase of global IP traffic, submarine cable systems are enhancing the capabilities with respect to a broad range of items. Higher System Capacity Flexible Network Connectivity Efficient Bandwidth Use Various Service Interfaces
Challenges for Submarine Cable Systems toward NGN & Global Cloud Computing ▐ Minimize Transmission Delay ▐ Maximize Traffic Throughput ▐ Realize On-demand & Rapid End-to-end Path Provisioning ▐ Realize On-demand & Rapid Bandwidth Adjustment 2 ▐ Improve Network Connectivity with IP Network & Service Platform ▐ Reduce OpEx with O&M simplification ▐ Realize Optimum Platform for New Service Introduction In view of the global network development toward Cloud Computing, there are still a lot of challenges remaining: “Transmission Delay”, “Traffic Throughput”, “End-to-end Path Provisioning”, “Bandwidth Adjustment” and “Network Connectivity with IP Network & Service Platform”. In addition, it has become imperative to develop ways to integrate the existing networks into the packet based networks in order to realize a reduction in OpEx, and also to provide a flexible and quick way to introduce new services. Furthermore, it is also necessary to find a way to coexist with non-packet traffic, taking into consideration that all traffic will not be completely migrated to packet based traffic.
Current International Network Issues OpEx and O&M New Services International DCs access Traffic Throughput Bandwidth Adjustment Data Centers Transmission Delay Network Connectivity 3 Submarine Cable Systems International VPN & leased line service Traffic Throughput Bandwidth Adjustment Path Provisioning
Technologies & Solutions realizing Innovative Submarine Cable Systems P-O LSR MSIP IWOC OSS/BSS Transport Integration OpEx and O&M Converged Packet Optical New Services Transport Platform 4 Traffic Throughput Transmission Delay Path Provisioning Bandwidth Adjustment Network Connectivity MSIP (Multi-Service Integrated Platform) P-O Transport (Packet Optical Transport) IWOC (International WAN Optimization Controller) OSS/BSS (Operation Support System / Business Support System) LSR Integration (Label Switch Router Integration)
Converged Packet Optical Transport Platform SLTE-NPE Integration SDH Transparency Agnostic Switch 10 – 100Gb/s WDM 5 MPLS based Protection SDH / OTN / Ethernet INTF DWA w/o XC DWA w/ XC 100% OTN �� 100% Packet 100% Single NMS OTN Traffic Engineering OTN Packet Packet 0%
High capacity transmission based on OTN technology. High system availability and fast/flexible path protection realized by MPLS-TP technology. O&M simplification and OpEx reduction achieved by SLTE-NPE Integration and Single NMS. Path management and traffic engineering realized by MPLS-TP technology. 6 Efficient traffic handling with Agnostic Switch. The converged packet optical transport platform based on the OTN and MPLS-TP technologies is an optimum solution for submarine cable systems to resolve the current network issues. The technologies employed in the converged packet optical transport platform are ideal not only for high capacity transmission, but also for transport of both packet and non-packet traffic. By incorporating the protection schemes with high fault-tolerance and integrating SLTE functionality, the converged packet optical transport platform can configure a submarine cable system on a single platform. It enables simpler network management, and the simplified network management by a single management system further contributes to OpEx reduction. In addition, the traffic engineering capabilities enable flexible control of the network resources, and value-added services such as QoS (Quality of Service) can be introduced.
Further Enhancements for Innovative Submarine Cable Systems LSR Integration Agnostic Switch 7 OSS/BSS IWOC TCP Throughput Transmission Distance
Realize the shortest path routing without going through POP. LSR Minimize transmission delay. Integration Reduce bandwidth of backhaul network. Improve connectivity with MPLS network. Improve TCP traffic throughput degraded due to IWOC ultra long-haul transmission. Create new bandwidth services. 8 Simplify O&M and Reduce OpEx. Realize On-demand & Rapid End-to-end Path OSS/BSS Provisioning. Realize On-demand & Rapid Bandwidth Adjustment. Enable diverse international network services. Due to the nature of submarine cable systems that provide Ultra long-haul transmission, a transmission delay is a serious problem. In addition, a transmission delay causes significant degradation of traffic throughput. This issue currently becomes concerns not only for system operators, but also for end users. LSR Integration and IWOC are considered as the solutions. Utilization of OSS/BSS enables simplification of O&M as well as reduction of OpEx. In addition, it will realize new services such as on-demand and rapid end-to-end path provisioning and bandwidth adjustment.
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