New Generation Network Architecture Design and Optical Grid over Wavelength Switched Optical Network

Transcription

1 New Generation Network Architecture Design and Optical Grid over Wavelength Switched Optical Network FuturICT 2009 June 29, 2009 Hiroaki Harai akari-project, nag}.nict.go.jp/

2 Why New Generation Network? Current & near-future situation The Internet has grown as the most important universal worldwide communication? ICT infrastructure. Telephone network will be renovated by NGN small (Next devices? Generation authentication? Network), of which transport is constructed by IP network system. guaranteed NGN is expected to provide sophisticated dependability? solutions for solving the service? problems in the Internet, e.g. QoS, Security, etc. However, we have still many problems. For example: Adding Functions?? Large capacity of transmission/exchange (x10 3 by 2020 (1 Pbps)) Electric power consumption of core router (1 nuclear plant power flow-label generation per 100 devices of 1Pbps electronic router) Difficulty of guarantee of bandwidth (limit of packet anycast switching system) Difficulty of congestion control (bw-delay problem, fairness of users) Difficulty of avoidance or fast recovery of break down (several tens of seconds order needed for rerouting in wide areas) Difficulty in introducing plural gateways, seamless mobility (connection termination) mobility Original Internet Architecture hierarchal addressing Difficulty in building sustainable & evolvable network (patch??) New Generation Network (Vision, Net Design, Build) GMPLS MPLS multicast NAT local addressing IPsec complicated routing 2

3 AKARIARI Architecture Design Project (May Present) Designing the future, diverse, new generation network beyond 2015 White paper of concept design is available from web

4 AKARI Architecture Design PJ The primary mission of AKARI is to design a network architecture of the future To develop novel technologies for NWGN by 2015 To envision a new infrastructure for the next two or three decades To pursue an ideal solution by researching new network architectures from a clean-slate without being impeded by existing constraints AKARI Sustainable Architecture Principles Diversity Inclusion 2. Reality Connected Physical-logical separation Bi-directional authentication Traceability Reliable Network Space 1. Crystal Synthesis (KIS*) Selection, integration, simplification Common layer (layer degeneracy) Refined end-to-end 3. Sustainable & Evolutional Self-* properties (emergent) Autonomic distributed control Openness Social Potentiality Promotion 4

5 Max. the Potential Culture & life diversity Knowledge society Media fusion new-value distribution Better productivity e-democracy Entertainment Frontiers Min. the Negatives Energy Natural disaster Medical Food shortage Accident Anticrime City- country gap Intl economic gap Aging society Education Cyber Security How to get to NWGN New Generation Network? Revised NXGN New Generation Network (NWGN) Vision, Design 1) Unconstraint design (Clean-slate approach) 2) Incremental development with a future direction Past Network Present Network Next Generation Network (NXGN) AKARI a small light in the dark pointing to the future 5

6 AKARI Design Project R&D Plan Grand-Designing a New Generation Network beyond (1) Design ideal network under clean-slate concept (2) Bridge current network and ideal network 2006 secured 2011 planned Innovation Field Trial Protocol Engineering Testbed Construction NWGN Blueprint Proof of Concept Design Testbed Design Concept & Principles Prototyping JGN X JGN2plus Network Virtualization Service & Operations Testbed Design Standardization AKARI Architecture Conceptual Design See 6

7 Enabling Components in AKARI Architecture Under the design principles Optical packet & path integration Optical access Wireless access PDMA Transport control ID-locator split internetworking Layering Security QoS routing Self-organizing Robustness Layer degeneracy Simplified IP Overlay network Network virtualization Application platform Optical Path Net Wireless access Diversity Inclusion 1. Crystal Synthesis (KIS*) 2. Reality Connected 3. Sustainable & Evolutional Reliable Network Space Social Potentiality Promotion 7

8 Connection is terminated if IP addr is changed in the current Internet Key Tech 1: ID/locator Split Internetworking Architecture (1/2) Objectives Diversity inclusion through IDs and locators split Handling network dynamism more effectively Advantages Support heterogeneous network layer protocols IP, post-ip, non-ip Helpful for mobility, multihoming, security, and routing functions Design principle ID/locator split Diversity in networks Reliable network space Transport and upper layers Network layer GW Hosts ID/locator split protocol stack Use ID to identity host or session Mapping functions layer (ID LOCATOR) Use LOCATOR to locate host in the network Link and lower layers Global Transit Network Edge Networks GW Hosts 8

9 ID/Locator Split Internetworking Architecture (2/2) Design and Development Overview New naming and resolution system Unified logical control network Maintain and distribute hostname, ID, and locator mapping information securely, promptly Maintain and distribute additional info for network management or control as well DNR HNR Other servers GW Unified Logical Control Network IDR Network Layout Global Transit Network IDR GW HNR DNR Global Hostname = Local Hostname # Domain Name ID prefix assignment New Naming System (e.g., myhost#mydomain.com) Hash (global hostname, parameter) Prefix Scope Version Hash Value Host ID Locator Resolved by DNR & HNR Resolved by IDR Resolution System DNR: Domain Name Registry [Domain Name HNR ID&Locator] HNR: Host Name Registry [Host Name Host ID&Locator] IDR: ID Registry [Host ID Host Locator] Hosts Edge Networks Hosts Update/retrieve Host ID&locator mapping Update domain names, HNR ID&Locator mapping 9

10 Key tech 2: Network Virtualization (a) Isolated Virtual Networks VN 1 VN 2 Real TestBed Network (b) Transitive Virtual Networks Self-evolvable VN 1 VN 2 Real Operational Network (C) Overlaid Virtual Networks Optical Path Network Wireless Network VN 2 VN 1 Real Operational Network 10

11 Key tech 3: Optical Packet and Path Integration (1/2) Objective Providing diverse user requirements w/ large capacity Advantage High switching capacity Low power consumption Using common WDM infrastructure Simple control plane Design principle Crystal synthesis (QoS) Sustainable (throughput, power, usage) O/E/O Wavelength sharing Home Image view of optical integrated network Ctrl info O/E/O High-end, guaranteed quality Optical circuit switch Optical packet switch Best effort Sensors, tags or data O/E/O O/O/O O/E/O Ctrl info O/O/O O/O/O O/O/O O/O/O Packets Paths O/O/O 11

12 Optical Packet and Path Integration (2/2) - Design & Development Overview - Lightpaths to hosts or applications for service quality Optical packet switching for aggregated traffic Optical fiber-delay-line buffer Distributed control for scalability header payload T T T E E E D D D A A A Optical packet by many wavelengths T E D A time End-to-end wavelength paths g Control network via JGN2 (L2 & fiber) service Ko1 JGN2+ 50km fiber Ot1 JGN2+ 12km fiber nm nm nm nm Ko2 Ot2 Hk Koganei Otemachi Hakusan Power Spectrum 160G 80G 40G 20G Throughput / port (bit/s) 1.28T 640G 320G 10G Header A,B,C,D OTDM 40 G 2003 Payload E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T OPS progress (Source N. Wada) 160 G DWDM 1.28 T (10G x 128λ) 80 G (10G x 8λ) 2006 Year Wavelength 640 G (10G x 64λ) 320 G (10G x 32λ) 160 G (10G x 16λ) 2009 ( without optical buffering ) Max of Electric Router 12

13 Optical Grid over Wavelength Switched Optical Network One potential service over NWGN infrastructure Hiroaki Harai 13

14 End-to to-end Circuit for Real QoS Edge-to-Edge Resolve router bottleneck Traffic engineering GMPLS End-to-End More than GMPLS Big consumer Guarantee bandwidth Tractable to application Packet Switching Control Plane Lightpaths Control Plane Packet Switching Driven by DWDM (>1000 waves) & optical MEMS (>100x100ports) More Values to WSON - Optical Grid - Lightpaths Hiroaki Harai 14

15 Optical Grid Value added to WSON from service provider Service-oriented control plane for establishing multiple lightpaths simultaneously over WSON Distributed computing users likely request A set of lightpaths from WSON or To obtain computing environment Mapping from a User Request to Lightpath-Requests to WSON User Req 2: Obtain computing environment MAPPING User Req 1: a set of lightpaths Design topology MAPPING Setup lightpaths Hiroaki Harai 15

16 Topology Design Server Specifies pairs of end hosts for lightpaths collecting Comp resource Info. & Net resource Info. A TD server in a host may design whole of topology or part of topology TD servers in other hosts complete whole of topology via communicating token (TDCT) d a Topology Design Control Token c d a b a b c d c d a d a b b c c Topology design control token Token from a to b includes Info. of finishing setup of two lightpaths and delegation message to design remaining topology TDCT TDCT copy TDCT TDCT copy TDCT TDCT Next step topology design Hiroaki Harai 16

17 Implementation and Experiment Built using JGN2plus optical fiber service Experimental environment g Control network via JGN2 (L2 & fiber) service Ko1 JGN2+ 50km fiber Ot1 JGN2+ 12km fiber nm nm nm nm Dynamic network configuration and automatic IP addr, lambda allocation (a) 2 hops (c) Ko1 Ko2 3 hops 3 hops Ot2 4 hops 3 hops Hk1 Lightpaths Established (b) nm nm nm nm Ko2 Ot2 Hk Koganei Otemachi Hakusan User interface Wavelengths monitored (c) nm nm nm Supervised signal H. Harai et al., OFC 2009 (invited). Hiroaki Harai H. Harai et al., OFC 2009 (Invited) 17

18 Network & Science Fusion: Collaboration between End-to to-end Optical Path and e-vlbie (US) Haystack Observe PC Kashima (JP) Observe PC Tokyo APAN (L3) Router Abilene (L3) Router JGN2 (L2) StarLight (L2) L2 Switch MC MC PC L2 Switch MC MC MC PC GMPLS via JGN2 L2 Chicago MC MC Correlator PC Hiroaki Harai OXC OXC OXC Koganei 50 km JGN2-L1 MC MC Correlator PC Otemachi Monitor PC (Hiroshima) 5 km JGN2-L1 MC MC Correlator PC Akihabara S. Xu et al., ipop 2007 (invited). Signaling is related to draft-xu-rsvpte-bidir-wave (expired) 18

19 Summary Towards New Generation Networks AKARI Architecture Designing a network of future Clean slate design and migration path from current to ideal net Design principles + enabling techs R&D (Optical Packet & Path Net, ID/Loc Split Net, Net virtualization, Self-organizing Ctrl. ) Design and development of optical grid over WSON Providing end-to-end real QoS Providing multiple lightpaths to a user simultaneously Distributed control for provisioning multiple lightpaths Experiment of the implemented system via JGN2plus fibers Acknowledgement: AKARI-PJ member for discussion about AKARI-PJ s NWGN design Thank you for your attention 19