Agenda. NREN Requirements & Evolution. Hybrid IP/Optical Architecture. Unified Control Plane & GMPLS. Examples of IP/Optical Initiatives

Transcription

1 Future of NRENs: Migration from Pure IP to Hybrid IP/Optical Networks Chris McGugan, Cisco Systems Olivier Jerphagnon, Calient Networks TF-NGN meeting, Oct

2 Agenda NREN Requirements & Evolution Hybrid IP/Optical Architecture Unified Control Plane & GMPLS Examples of IP/Optical Initiatives Areas of Common Interest 2

3 NREN Requirements & Evolution 3

4 Lightpath for NREN Community We have seen increasing interest in high-bandwidth connectivity ( lightpath ) by demanding users NREN worldwide: Japan, Europe, USA, etc Various Applications: GRID computing, rapid network provisioning, Intelligent clusters, imaging and visualization, etc Even some commercial carrier customers: demand for wavelength services (ex: for SAN/Data center business continuance with FC/ESCON over optical) There are differences in service definition and implementation Level of control over lightpath Service requirements Access to fiber What is common: Access to some fiber Guaranteed bandwidth (not all the time but on demand) And need for control plane for rapid provisioning 4

5 Drivers To Migrate From IP to IP/Optical Applications Dynamic and higher capacity bandwidth services Performance Low Latency to allow distributed computing High Throughput to maximize bandwidth Capacity & Scalability Scaling from 1 Gbit/s to 1 Tbit/s connections It s also about economics ( paradigm shift ) Cost of optical transport decreasing faster than cost of routing Leverage access to dark fiber vs. leased circuit NRN/RE Migration Market Transition X.25 ATM POS Optical 2Mbps 34Mbps 155Mbps 622Mbps 2.5Gbps 10Gbps nx10gbps nx40gbps? GRID Applications Advanced Services Learning, Collaboration, Connectivity 1980s 1990s 2000s 5

6 Capacity & Scalability Need for higher capacity services. Ex: High Energy and Nuclear Physics Continuing the Trend: ~1000 Times Bandwidth Growth Per Decade Capacity increase drives the need to learn how to use Multi- Gbps connections dynamically Dynamic share of resources necessary to reduce cost and allocate resources around projects (limited in time) among multiple users- Year Production Experimental Remarks SONET/SDH SONET/SDH DWDM; GigE Integ DWDM; GigE Integration X 10 λ Switch; λ Provisioning X 10 ~10 X 10; 40 Gbps 2009 ~10 X 10 or 1-2 X ~5 X 40 or ~20 X 10 ~5 X 40 or ~20-50 X 10 ~25 X 40 or ~100 X 10 1 st Gen. λ Grids 40 Gbps λ Switching 2 nd Gen λ Grids Terabit Networks 2013 ~Terabit ~MultiTbps ~Fill One Fiber Source: Larry Smarr (UCSD), Major Links: Bandwidth Roadmap in Gbps 6

7 Lower Latency & Higher Throughput Applications demand specific low latency transport Cluster/distributed computing Storage area networking High-end applications (distributed supercomputing and visualization) require ability to by-pass layer-3 router to provide needed throughput Dedicated ligthpaths should solve this concern! (part of the definition of a lightpath?) 7

8 Economics Cost of transport decreasing faster than routing: Ethernet/Optical is most economical between high-end users Leverage dark fiber (where it makes sense). OOO switching extends low cost structure of transport to layer-1 Example of TransLight (Source: Cees de Laat, UofA) 8

9 IP/Optical Node Architecture 9

10 NREN Requirements Services from layer 3 down to layer 1 depending on user and application Flexible architecture to support production and experimental services Can scale to large capacity and can be dynamically allocated among multiple users 10

11 Available Technologies Transport technologies Choice of SONET/SDH leased circuit or DWDM, CWDM, 10GbE over dark fiber Switching Technologies OEO (circuit and packet): mature and optimum for service aggregation OOO optimum for core switching and some direct high-end services. Also cost-effective multi-casting at high-capacity Protocols and Architectures Advances in IETF protocols and ASON architecture standards IPv4/v6: Multicast New TCP extensions (XCP, FAST) 11

12 Example of Hybrid IP/Optical Architecture GMPLS Multi-layer Control Plane Layer-3 Services 10/100 FE GE DWDM Layer-2 Services 10 GE LAN GE CWDM Customer owned fiber Layer-1 Services STM-n GE STM-16/64 10GE WAN Lambda OOO switch STM16/64 or 10GbE Leased Circuits (SONET/SDH) Production and Experimental Layer 1/2/3 services Transport Options 12

13 Need for Unified Control Plane GMPLS/ASON needed to deliver on the promises of IP/Optical Automated provisioning across multi-layered network as in layer 2/3 OAM&P experience of layer-1 Scalability to more than a few users and across multi-domains GMPLS/ASON is service agnostic: new applications and middleware (AAA, JIT, MonaLiSA, etc) can be developed over GMPLS/ASON based IP/optical network Géant-2 NREN customer NREN customer 13

14 Unified Control Plane & GMPLS 14

15 Unified Control Plane (UCP) GMPLS (IETF): protocols and layer-3 perspective ASON (ITU): defines architecture & requirements for Optical Transport Networks (OTNs) OIF: Implementation and Interoperability considerations for carriers GMPLS/ASON: important framework for layer3/layer1 convergence and to provide unified control plane 15

16 GMPLS Protocols and Benefits Control Plane GMPLS Signaling Router ATM DWDM DWDM SONET OEO Data Plane Router ATM SONET OEO GMPLS protocols: Routing (OSPF-TE or ISIS-TE) Signaling (RSVP-TE) Link Management Protocol (LMP) LMP-WDM (Extensions for DWDM) Benefits of GMPLS Topology and resource discovery Automated provisioning to support dynamic services Tiered protection services, including shared mesh protection Intra and inter domain provisioning Interoperability 16

17 GMPLS and Interface Implementations GMPLS is also protocol choice that supports ITU ASON standard requirements ASON adopted GMPLS signaling (G ), LMP (G ), routing in conjunction with the IETF (G ) GMPLS protocols supports peer-to-peer and overlay models GMPLS deployment interfaces: I-NNI: OSPF-TE single area, RSVP-TE, LMP, LMP-WDM E-NNI: OSPF-TE multi-area, BGP-MP, RSVP-TE, LMP, LMP-WDM UNI: RSVP-TE and LMP R 0 R 1 R 2 R 3 OTN UNI S P 2 1 STSI UNI UNI I-NNI [E-NNI] [NNI] UNI UNI O 1 P 1 P 3 PTN P 5 O 2 STSI [E-NNI] STSI [NNI] [E-NNI] [NNI] UNI UNI STSI P 4 [E-NNI] [NNI] Transport Service Layer Photonic Transport Layer Transport Service Layer (Opaque) (Transparent) (Opaque) 17

18 GMPLS Peer and Overlay Model Signaling/Routing LMP LMP LMP LMP LSR LSR LSR LSR LSP LSR Signaling OTN Signaling/Routing LMP LMP LMP LMP Signaling UNI UNI LSR LSR LSR LSR any GMPLS TE LSP 18

19 GMPLS Multi-Domain Interface OSPF, ISIS MPLS TE RSVP TE Unified Control Plane 1 GMPLS CR LDP, RSVP TE OSPF, ISIS MPLS TE RSVP TE Unified Control Plane 3 GMPLS CR LDP, RSVP TE TD LD FD E-NNI TD LD FD PSC Domain OTN PSC Domain OTN TD LD FD TD LD FD TD LD FD TD LD FD OTN GMPLS Domain 1 OTN OTN GMPLS Domain 3 OTN Forwarding Plane 1 OSPF, ISIS MPLS TE RSVP TE Unified Control Plane 2 GMPLS CR LDP, RSVP TE Forwarding Plane 3 E-NNI PSC Domain TD LD FD OTN E-NNI TD LD FD TD LD FD OTN GMPLS Domain 2 Forwarding Plane 2 OTN 19

20 Examples of NREN IP/Optical Initiatives 20

21 SuperSINET (Japan) SuperSINET Backbone Logical Topology Kyoto Univ. (Yoshida) Doshisha Univ. NIFS Backbone OC192 Kyoto Univ. (Uji) Nagoya Univ. Customer Access OC48,GbE Osaka Univ. Okazaki National Research Institutes Nagoya Exchange P P Kyushu Univ. NIG Osaka Exchange Hokkaido Univ. ISAS Tohoku Univ. Tokyo Exchange NAO P KEK Tokyo Univ. P Cisco12400 Tsukuba Univ. Institute of Medical Science (Tokyo Univ.) Customer Router Institute of Material Reserch (Tokyo Univ.) Waseda Univ. Tokyo Institute of Technology NII Chiba NII Hitotsubashi 6 Realization of DataGRID Data Sharing with low Latency Telescope Telescope for for VLBI VLBI Fusion Fusion Research Research Equipment Equipment Example of GMPLS Control applied to DataGRID on SuperSINET Osaka PXC IP IP Backbone Backbone (Quality (Quality Control, Control, Policy Policy Control) Control) Nagoya PXC Network Network Storage Storage Tokyo PXC Users Users Equipments Equipments on on Liner Liner Accelerator Accelerator Super Super Computers Computers 14 Source: Pr. S. ASANO and Mallik Tatipamula, Deployment of 10Gb/s IP/Optical backbone in SuperSINET for Research, Education and Next Generation GRID Applications, NORDUnet Networking Conference,

22 National Lambda Rail NLR PoP Architecture Carrier Colo West East NLR demarc CRS DWDM 10GE or OC192 1GE or OC48 Metro and regional nets Cisco, NLR LLC and NLR Inc. Confidential and Proprietary 2 22

23 NLR Regional Networks PNWG Northern Lights Cornell/NYSERnet/NEREN CENIC FRGP GPN CIC PGP OARNet MATP NMG OneNet NCLR LEARN LONI SLR FLR NLR Fiber Routes NLR Leased Managed Wave Routes NLR PoP Solid color indicates current or shortly pending NLR membership Striped color indicates interest in NLR membership 23

24 TWAREN (Taiwan) Optical Network -1 Optical Production Research 10GE STM-64/OC-192 STM-16/OC-48 GE Proposed (#) Link number NTU C7609 ONS15454 (2) Taipei GSR (6) (2) (2) Sinica C7609 ONS15454 (2) NDHU C7609 ONS15454 NCU C7609 ONS15454 NCTU C7609 ONS15454 (2) (2) ONS15454 HsinChu ONS15600 ONS15454 ONS15600 TWAREN ONS15600 (6) (3) (6) (3) GSR GSR ONS15454 ONS15454 Tainan (2) (2) CCU C7609 ONS15454 NCKU C7609 ONS15454 NTHU C7609 ONS15454 (2) NCHU C7609 ONS15454 (2) (4) (2) GSR Taichung NCNU C7609 ONS15454 NSYSU C7609 ONS , Cisco Systems, Inc. All rights reserved. 3 (2) (2) 24

25 Optiputer (NetherLight) High-capacity bandwidth service between Chicago and Amsterdam NetherLight node architecture 25

26 Japan Gigabit Network II Japan Gigabit Network II Network test bed for R&D usage, based on IPv6/10GbE/GMPLS Consisting 6 GMPLS controlled OXCs and PXCs Consisting GMPLS controlled routers (2 vendors) Consisting >10 Layer 2 switches supporting 10GbE Edge networks support both IPv4&v6 Each prefecture has at least one access point Totally more than 50 access points Core station: 10Gbps BW Branch station: 10Gbps or 1Gbps BW Leaf station: 1Gbps or 100Mbps BW Source: Tomo Okani, KDDI 26

27 JGN-II IP/Optical Architecture L2 SW PXC Fukuoka L2 L2 MC MC SW WDM-LMP WDM-LMP MC SW GbE LX GbE MUX STM STM GbE MUX PXC GbE LX NEC MG4040 STM Kanazawa -64 GbE LX 10G GbE MUX STM -64 WDM WDM STM -64 GbE MUX GbE LX Otemachi PXC E-NNI STM-64 GbE SX GbE LX STM-64 10GE(W): 10GbE WAN-P HY(LW ) 10GE(L): 10GbE LAN-PHY(LR) STM -64 GbE MUX Osaka Source: Tomo Okani, KDDI GMPLS signaling provides bandwidth-on-demand GbE circuits between edge devices across multi-domains (KDDI and NTT) GMPLS allows tiered protection/restoration services and carriergrade monitoring (BER) with LMP-DWDM 27

28 OOO Switch / DWDM Integration with LMP-WDM to offer SDH-grade monitoring & protection Notification of performance and alarm GMPLS control plane Notification of performance and alarm Controller PXC 1:shutdown Controller Transponder #1 Transponder #2 Transponder #3 DWDM Alarm 3:Transponder failure Optical Amplifer Alarm DWDM Controller Transponder #1 Transponder #2 Transponder #3 Monitor Controller PXC 1:Cable break 2:Pump LD failure 4:Performance monitor SW Controller LMP-WDM TL1 LMP Controller TL1 LMP-WDM SW Controller PXC OC-192 OC-48 OC-192 DWDM(1) DWDM(2) DWDM(1) link up to 80λ DWDM(2) link up to 80λ DWDM(2) DWDM(1) OC-192 OC-48 OC-192 Controller PXC LMP-WDM TL1 Controller TL1 Controller LMP-WDM Source: OFC 2004 (KDDI/Calient) Time variance of BER before/after restoration 28

29 Areas of Common Interest 29

30 Areas of Interest of Joint Research with NREN Bandwidth on Demand Services Bandwidth Broker Services Policy NNI development AAA Integration Protection Services Multicast Services (Optical and IP) Extended Optical Transmission Capabilities Multi Domain Service Provisioning Hybrid Router Architectures (Optical and IP?) 30

31 Interface Between Layer 7 and Layer3/2/1 Importance of Interface and middleware to support applications and utilize fully Layer1-2-3 resources Critical role played by NRENs 31

32 New Router Architecture - LASOR Cisco and Calient working with JDS-Uniphase, Agility, Stanford University, and UC Santa Barbara on new optical router architecture that can scale to 100Tb/s LAbel Switched Optical Router (LASOR) research program is funded by DARPA Microsystems Technologies Office's Data in the Optical Domain program Some of key technologies are new network routing protocols, router architecture, all-optical and fast wavelength converters, fast processing, highly scalable optical switches, etc Fundamental differences of packet routing in optical domain: bandwidth virtually unlimited and buffer capacity limited TCP developed 1960 s in paradigm where bandwidth was limited and memory was not an issue Revisit assumptions that led to past architectures (TCP, etc) 32

33 Q & A 33