technology for the future optical internetworking

Transcription

1 2nd Workshop on Future Internet Design Evolution of virtualization technology for the future optical internetworking Michiaki Hayashi KDDI R&D Laboratories Inc., Ohara, Fujimino-shi, Saitama , Japan ,

2 Networking evolutions Agenda Network resource virtualization for telecom operator High-level architecture Design of prototypes Demonstration Policy-based E2E quality control Resource scheduling Distributed messaging flow Virtualization of functional modules High-level architecture Cache function control Conclusion 2

3 Networking evolutions -From consolidation to customization- ~Today NGN Beyond NGN Tra ansport arch hitecture e IP/Ethernet ADM TDM ATM Cons solidatio on IP/Ethernet Custo omization Virtual network Storage(e.g. g cache) Data processing (e.g. compression) ng ies Networkin chnolog N tec Control plane (MPLS, GMPLS) Session/flow control (IMS, RACF, BGF) Control plane (MPLS, GMPLS) Virtualization (Network resource, Functional modules) 3

4 Virtualization: Advantages Short delivery time Prompt coordination of heterogeneous infrastructures Low cost Good reusability and high utilization of infrastructures Flexibility Customized network and other building blocks Connectivity Customized network 4

5 Networking evolutions Agenda Network resource virtualization for telecom operator High-level architecture Design of prototypes Demonstration Policy-based E2E quality control Resource scheduling Distributed messaging flow Virtualization of functional modules High-level architecture Cache function control Conclusion 5

6 Virtualization: Grid approach From G-lambda project ( 5 5 te A 2Gbps Applications 1 10 Duration : x min Deadline : hhmmss Requirement Grid Application Grid Portal Grid Resource Scheduler 1 2Gbps 10 te B te C Reserved time : hhmmss - hhmmss Result Middleware for virtualization Computing Resource Managers Network Resource Managers Resource/ Fabric Computers 6

7 Seeds of virtualization in NGN From ITU-T Rec. Y.2012 IMS (IP Multimedia Subsystem) RACF: Resource virtualization for IMS 7

8 Network resource virtualization - Based on Grid approach- Virtualization : NRM as a virtualization engine for various resources Common API : Network service interface (NSI) for coherent accessibility Business process : Harmonization to the business processes Business Process Oriented Application Provisioning system Network service clients Other OSS SOA bus Common API over SOA bus NRM NRM NRM Virtualization Engine Network 1 NRM NRM NRM Network 2-1 Network Network 3 Network 2 - NRM: Network Resource Manager - SOA: Service Oriented Architecture 8

9 Loosely coupled Network as a service in SOA Tolerant to any change of backend systems (Good reusability) Implementation environment Rich frameworks and development tools (Lower development cost) Business driven work flow Easy integration to the existing business process Backend systems User profile Inventory Alarm Accounting SOA supply chain Metering Contents Network Provisioning i i 9

10 Virtualization of optical networks Resource management middleware proposed by KDDI R&D labs NRB: ngle point of contact to service control layer NRMs: Distributed management to cover E2E Network service clients NRB: Network Resource Broker IMS/MMD SDP Configuration NRM: Network Resource Manager Alarm Services control Application system layer servers Inventory Traffic Orchestration layer Virtualization layer Resource control layer NRB Resource management system Orchestration SOA-bus A-NRM M-NRM C-NRM Virtualization A-NRM Data center Access EMS Access Trans sport layer IPTV VoIP P2P CPE OLT Metro (Ring) Packet ADM Router Core (Mesh) Metro (Ring) Packet ADM OLT CPE IPTV VoIP P2P Videoconference Videoconference

11 Design of virtualization engines Hierarchical path computation with NRB-NRM load sharing resource management architecture NRB: Abstracted topology handling and parallel transaction handling NRM: Detailed topology handling, resource scheduling and deciding resource allocation policy Universal WSI* for reconfigurable extensibility Network service clients Universal WSI NRB *WSI: Web Services Interface Web services module NRB Web AS WSRF Mediation module Transaction DB Path comp. Parallelizing Roll back Abstracted topology DB Web services module Web services module Web AS WSRF Mediation module Path comp. Scheduler Transaction DB Policy DB NRM Resource DB Web AS WSRF Network C&M module NRMs NE or EMS 11

12 GE-PON virtualization Management policies i and mechanisms Policy-based CIR/PIR provisioning for each LLID (<4 per user) Time-scheduled bandwidth management of shared PON link Call admission control and degeneration management On-demand and scheduled services DBA* for unused bandwidth ToS marker Classifier Service path segment Shared PON link ONU/HGW OLT IPTV 4 LLID #1 VoIP 6 LLID #2 P2P/ 0 LLID #3 data 5 LLID #4 Videoconference ONU/HGW 1 Gbit/s max. LLID #253 LLID #254 LLID #255 LLID #256 Policer Co os marker Clas ssifier A-NRM 1 Gbit/s link from/to Metro ring *DBA: Dynamic Bandwidth Allocation Total reserve ed-cir Policy table QoS CIR PIR (%) (%) Admission control line (1Gbit/s) CIR assigned LLID#4 Σ Time LLID#1 LLID#2 LLID#3 LLID#N Time 12

13 from /to OLT RPR virtualization Management policies and mechanisms Policy-based CIR/EIR provisioning for each VPLS path (<1023 total) Classification i of services with VLAN-ID and QoS Time-scheduled bandwidth management pf shared RPR link Call admission control and degeneration management On-demand and scheduled services Service path (VPLS path) RPR node HP G1 G2 BE Clas- Poli Classifier -cer sifier 2.4 G link from/to a neighbor Shared RPR link Policy tables BW assignment QoS CIR EIR (%) (%) Overbooking rate Rate Class (%) HP NA G1 200 G2 1, G link BE 10,000 from/to a neighbor VPLS BWs To otal reserve ed BW Admission control line (2.4Gbit/s) Σ Time VPLS#1(HP) VPLS#2(G1, G2) VPLS#N(BE) Time 13

14 IP/lambda virtualization Management policy and mechanisms 2.4Gbit/s 1Gbit/s A Loop detection Request-based adaptive LSP allocation In-advance path computation with breadth-first search LSP selection meeting latency and dbandwidth requirements Time-scheduled bandwidth management with per-link basis Admission control and degeneration management On-demand d and scheduled d services 1 st 2 nd 1ms 1ms 4ms 5ms Link ID 3 rd link attributes t A-B#1 Different 6ms LSC B C D 6ms 7ms 3ms 1ms PSC 8ms 1ms J I G F E 2G path (A-B-C-D-E) B-C#1 C-D#1 D-E#1 B-I#1 J-I#1 J-I#2 I-G#2 G-F#2 2.4G path (A-B-I-J) Resource scheduling table per link 2Gbit/ Gbit/s 24Gbit/ 2.4 Gbit/s 2 Gbit/s 2 Gbit/s 2 Gbit/s 500M path (J-I-G-F) 2.4 Gbit/s 2.4 Gbit/s 500 Mbit/s 500 Mbit/s 500 Mbit/s Time 14

15 Networking evolutions Agenda Network resource virtualization for telecom operator High-level architecture Design of prototypes Demonstration Policy-base E2E quality control Resource scheduling Distributed messaging flow Virtualization of functional modules High-level architecture Cache function control Conclusion 15

16 Demonstration Southbound implementation of NRMs A-NRM: CLIs of OLT, C-NRM: CLI of router, M-NRM: CORBA of EMS Typical server platforms for NRB and NRMs Memory: 768 Mbytes CPU: 2.4 GHz L2 switch NRB Client A-NRM M-NRM1 G-NRM M-NRM2 CPE 1 CPE 2 CPE 3 CLI (of OLT) OLT1 RPR1 RPR2 CORBA Metro EMS CLI (of edge router) EP 1 EP 4 EP 5 RPR6 (Ring 1) (Ring 2) RPR3 EP 6 RPR5 Metro Control plane Core OLT2 RPR4 RPR8 1ms 5ms 1ms EP 2 RPR7 EP 3 Rtr1 3ms XC1 10ms XC2 Rtr2 2.4Gbit/s 1ms 7ms 1ms 1Gbit/s Demonstration environment Rtr3 Rtr4 600Mbit/s XC3 XC4 16

17 Policy-based E2E quality control Pre-planned (DiffServe-based) Entire services are degraded without admission control and BW management Degradation of entire video services NRM/NRB-controlled Traffic Typical service BW profile ToS=6 Voice 90kbps*(200 flows) ToS=5 Realtime video E2E CIR is assured on-demand d video Voice and video services are preserved Pre-planned (DiffServe) 6Mbps*(N flows) ToS=0 Data 5Mbps*(140 flows) NRM/NRB-controlled 17

18 Resource scheduling Successful hierarchical path computation ti and scheduling Detailed route adaptation by C-NRM (Request 3) Abstracted rerouting by roll back operation of NRB (Request 4) Request # EP 1 EP 2 Bandwidth (M bit/s) 1 Rtr1 Rtr CPE1 EP CPE2 EP CPE3 EP CPE3 EP Latency (ms) Scheduled time frame 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 Request # Initial route selected by NRB Final assigned route (w/ assist of NRMs) 1 Rtr1-Rtr2 Rtr1-XC1-XC2-Rtr CPE1-OLT1-RPR1-RPR4-Rtr1-Rtr2- RPR8-RPR6 CPE2-OLT1-RPR1-RPR4-Rtr1-Rtr2- RPR8-RPR7 CPE1-OLT1-RPR1-RPR4-Rtr1-XC1-XC2-Rtr2- RPR8-RPR6 CPE2-OLT1-RPR1-RPR4-Rtr1-XC1-XC3-XC4-XC2- Rtr2-RPR8-RPR7 CPE3-OLT1-RPR1-RPR4-Rtr1-Rtr2- RPR8-RPR7 RPR7 CPE3-OLT1-RPR1-RPR4-Rtr3-XC3-XC4-Rtr4- RPR8-RPR7 RPR7 5 CPE3-OLT1-RPR1-RPR4-Rtr1-Rtr2- CPE3-OLT1-RPR1-RPR4-Rtr1-XC1-XC2-Rtr2- RPR8-RPR6 RPR8-RPR6 18

19 Distributed messaging flow Successful roll back with two-phase commit (request #4) Client NRB A-NRM M-NRM1 C-NRM M-NRM2 Reserve Status Query Initial Status Query Prepared Commit Status Query Committed Reserve/Prepared Commit Reserve/Prepared Commit Reserve/Abort Reserve/Abort Reserve/Abort Reserve/Prepared Commit Roll-back in action Reserve/Prepared Commit 1 st ph hase phase 2 nd 19

20 Networking evolutions Agenda Network resource virtualization for telecom operator High-level architecture Design of prototypes Demonstration Policy-based E2E quality control Resource scheduling Distributed messaging flow Virtualization of functional modules High-level architecture Cache function control Conclusion 20

21 Virtualization of functional modules Functional modules building blocks Load balancing Encap Compress DPI Protocol Redundancy Firewall security memory On-demand/work-flow L4-SW FCoE + VPN CIFS optimization + Compress Load balancing + SBC Secured FCoE WAN boost Scalable VoIP media GW 21

22 Virtualization of functional modules Function Manager IMS Application servers Network service clients SDP Configuration system Inventory Alarm NRB: Network Resource Broker NRM: Network Resource Manager Traffic Orchestration NRB SOA-bus Network resource management system NRM NRM NRM Virtualization NRM Data center Functional modules Access EMS Functional modules Access OLT Metro (Ring) Router Core (Mesh) Packet ADM Functional modules Metro (Ring) Packet ADM OLT IPTV CPE VoIP P2P Videoconference CPE IPTV VoIP P2P Videoconference 22

23 Conclusion Virtualization of network resources Consideration of heterogeneity Open API SOA-based design for business process Network resource management is a key NRM and NRB BPEL-based work flow management Policy-based quality control Scheduling Functional modules virtualization Lego block networking architecture Customized networking Future studies Involvement of various functional modules Interworking with network resource management This work is partially supported by NICT (National Institute of Information and Communications Technology), Japan. 23