Packet-Optical, the Future of Transmission Networks?
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1 Packet-Optical, the Future of Transmission Networks? Fred Masiak Expert Engineer Vodafone Group Engineering Nice,
2 Outline What is Packet Optical? Requirements Related to Transmission Networks Evolution of Packet-Optical-Transport-Systems System Highlights and Features Future Network Concept Conclusion 2
3 POTS Plain Old Telephone Services 3
4 P-OTS Packet Optical Transport System Packet-Optical Packet over OTN Multi-Service OTN One of a number of technical possibilities? Technical Trend? Technical Hype? It increases both the capacity and flexibility! It decreases deployment times and costs! 4
5 Optical Transport Systems Requirements Core, Backbone: DWDM/OTN Transmission rate of 100G and beyond Long haul transmission Aggregation of sub-bandwidth (1G..10G, 40G) Enterprise and Whole Sale Business: DWDM/OTN/? Transparent transmission L2 services, P2P, P2MP, MP2MP 10/100 M..1GE..10GE..100GE Low latency Encryption Access, Mobile Backhaul: DWDM/OTN/? 1 Gbit and 10G transmission rates Aggregation of sub-bandwidth (1..10G) L2 aggregation for 100M and below Low latency (future request) Common Requirements Flexibility Scalability Availability, reliability Cost efficient Green Smart provisioning 5
6 Packet-Optical Transport System Evolution of OTN Nodes OTN node Terabit cross connect ODUk/flex Multi-rate tributaries SDH function Centralized VC cross connect STM-1/4/16/64 tributary and aggregates Packet function Ethernet boards with integrated L2 switch L2 Switch SDH HO/LO L3 Router Universal Transport Node Centralized universal cross connect ODUk/flex, VC, Multi-rate tributaries SDH tributaries Ethernet tributaries Universal line boards OTN OTN Universal Switch node ODUk/flex 6 ODUk/flex HO/LO P P P P P L2 Line Line Line Line Line Line DWDM optical Layer
7 Universal OTN Node 1 st Generation Dedicated tributaries for the various services Dedicated switches for ODUk, VC and 1 st Generation gray TDM and Interface Hairpin connection 1 STM64 10GE Tributary Any Line OTN 1 TDM TDM TDM Multi Service Node Hairpin connections Metal sheet-integration Limited flexibility and scalability 7
8 Universal OTN Node Current Solution Dedicated tributaries for the various services Universal switch for ODUk, VC and Universal line card with variable capacity allocation Current Solution: Universal Switch and Universal Line Card 1 Tributary Line Any Any Configurable ratio ODUk/VC High flexibility TDM TDM ODUk VC ODUk TDM O T U 1 Bandwidth efficient Cost efficient High scalability Efficient E2E operation Green Future-proof 8
9 Packet Optical Carrier Ethernet - MPLS-TP MEF2.0 Connection-oriented packet switch applications Reliable packet-based technology, based upon circuit-based transport networking Aligned with current transport operational processes Various protection mechanisms with short switching time QinQ, VLAN stacking Comprehensive QoS functions Cost efficient Layer 2.5 technology Compatibility that covers all vendors End to End OAM functions, across network boundaries Supported P2P, P2MP and MP2MP services (E- Line, E-Tree, E-LAN) Certified hardware and services E-Line Service Model E-LAN Service Model 9
10 Future Network Concept Packet Optical / MS OTN IP Core IP Core DWDM L2/L3 Aggregation and Service Nodes L3 Router and Service Nodes DWDM L2 Aggregation DWDM Packet Optical / MS-OTN SDH/OTN/DWDM Access DWDM Complex network structure Many layers Reduced layers Centralized L3 and service nodes Simplified transport layer with optical packet 10
11 Conclusion Packet Optical / MS-OTN Simplification of networks, in metro aggregation and higher layers Reduces the rack space, power consumption and costs Simplifies E2E operation Forms the physical basis for T-SDN Determines the Future of the Transmission Networks 11
12 Thank you for your attention
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