EVOLUTION OF SERVICE ROUTING IN SDN/NFV NETWORKING ARCHITECTURES
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1 EVOLUTION OF SERVICE ROUTING IN SDN/NFV NETWORKING ARCHITECTURES Roland Thienpont October
2 AGENDA 1. NFV in cloud optimized IP networks 2. Virtualized Service Router 3. Management and orchestration 4. Key takeaways 2
3 3
4 SERVICE ROUTER EVOLUTION VIRTUALIZED SERVICE ROUTER (VSR) 7750 SR-3e 1.2 Tb/s 7750 SR-a8 400Gbps 7750 SR-2e 800 Gb/s 7750 SR-12 4Tbps VSR VSR 80Gbps 7750 SR-a4 200Gbps 7750 SR-1e 400 Gb/s 7750 SR-7 2Tbps 7750 SR-12e 7.2Tbps 7950 XRS-16c 6.4Tbps 7950 XRS-20 16Tbps 7950 XRS-40 32Tbps 4
5 EXTENDED SERVICE ROUTER PORTFOLIO SERVICE ROUTER PORTFOLIO 5620 SAM SR OS VMG VSR 7750 SR 7450 ESS 7950 XRS 7705 SAR 7210 SAS x86 FP3 C-NPU C-ASIC VIRTUALIZED x86 ARCHITECTURES SPECIALIZED CUSTOM ROUTING NPUs SPECIALIZED COMMERCIAL NPUs, ASICs 5
6 NFV APPLICABILITY IN THE NETWORK NFV NFV CUSTOMER EDGE ACCESS/ AGGREGATION IP EDGE IP CORE NFV opportunity in the customer edge and IP edge 6
7 TARGET APPLICATIONS FOR VIRTUALIZATION IN THE IP EDGE COMPUTE-INTENSIVE NFV Route Reflector Mobility Manager NFV L4-7 PROCESSING Application Assurance Address Translation IP EDGE IP SERVICES Provider Edge Gateways SPECIALIZED HARDWARE IP SERVICES NFV Small Provider Edge Small Gateways 7
8 VIRTUALIZED SERVICE ROUTER ROADMAP VSR AVAILABLE TO ORDER VSR-RR ROUTE REFLECTOR VSR-SIM ROUTING SIMULATOR AVAILABLE FOR TRIALS IN 2015 AND BEYOND VSR-PE PROVIDER EDGE VSR-BNG BROADBAND NETWORK GATEWAY VSR-AA APPLICATION ASSURANCE VSR-SEGW SECURITY GATEWAY VSR-NAT NETWORK ADDRESS TRANSLATION VSR-RGW RESIDENTIAL GATEWAY VSR-WLGW WIRELESS LAN GATEWAY 20 VSR customer trials underway in EMEA alone one image, flex licensing 8
9 VSR DEPLOYMENT OPTIONS VSR INTEGRATED SYSTEM SINGLE VIRTUAL MACHINE (VM) VSR DISTRIBUTED SYSTEM MULTIPLE VIRTUAL MACHINES NFV MANO NFV Management and Orchestration (MANO) Scale Up Scale Up Scale Up Scale Up Scale Up Scale Up Virtual Machine VM Sync VM VM VM Scale VM Control + Data Plane Control Control Data Plane Data Plane Out Data Plane Inter VM Communication (Control, M anagement, Data) Hypervisor Hypervisor Hypervisor Hypervisor Hypervisor x86 HOST x86 HOST x86 HOST x86 HOST x86 HOST Elasticity in scaling with single-vm or multi-vm implementation models 9
10 VSR: ARCHITECTED FOR PERFORMANCE AND SCALE Symmetric Multi-Processing (SMP) vcpu Control vcpu Data Plane vcpu Data Plane vcpu Data Plane vcpu Data Plane - Active tasks are distributed across multiple cores - Automatic SMP in any VSR VM for data plane and control plane tasks - Supported in SR OS since 2007 vcpu vcpu vcpu vcpu vcpu Control Data Plane Data Plane Data Plane MULTICORE CPU SOCKET Data Plane 64-bit Operation - Support for 64-bit virtual machines - Single task can access >4GB of memory - E.g.: BGP RIB can scale to ~100M routes in a control plane VM with 16GB of memory Symmetric Multi-Processing (SMP) and 64-bit OS are essential technologies for NFV 10
11 VSR DATA PLANE PERFORMANCE SINGLE SERVER CONFIGURATION SMALL SCALE VSR DISTRIBUTED SYSTEM VSR NFV MANO Scale Up VM Scale Up VM Scale Up VM Control Data Plane Data Plane SRIOV = Single-Root I/O Virtualization - Dual-socket 2 Rack Unit server - 1 control plane VM, 2 data plane VMs - Intel Haswell processors, SRIOV driver - 1p 40 GE Intel NIC; 4 installed Hypervisor: KVM Inter VM Communication x86 HOST: 1 dual socket Intel Haswell server Demonstrated 160 Gb/s FD VSR-PE application We also demonstrated 1Tb/s FD distributed VSR-PE using 6 dual-socket 2RU server 11
12 SPECIALIZED AND VIRTUALIZED 7750 SR 7450 ESS 7950 XRS FP3 VMG x86 VSR SPECIALIZED Purpose built, Telco-grade hardware Highest data plane performance Minimal power and rack space Predictable, low-latency, HW-based forwarding Highly reliable internal communication Integrated system, single-vendor accountability VIRTUALIZED Generic servers for maximum application flexibility, agility and elasticity Outperforms for control and VAS applications Data plane performance depends on configuration and I/O virtualization technology Exposed fabric / inter-vm communications No single vendor owns the solution Complimentary deployment options Network Functions Optimization 12
13 VSR-SIM: VIRTUALIZED SR OS SIMULATOR SR OS 12.0r4 BRIDGE v CPM IOM HYPERVISOR/HOST NIC NIC BRIDGE v CPM IOM HYPERVISOR/HOST VSR-SIM Emulate a physical 7x50 router on general purpose server hardware Typical applications - Trials, PoCs - Training - Feature evaluation - Network simulation Feature parity, flexible set-up, low cost 13
14 VSR-RR: VIRTUALIZED ROUTE REFLECTOR SR OS 12.0r2 INTERNET L3 VPN L2 VPN INTERNET L3 VPN L2 VPN VSR-RR Control plane BGP route reflector for operational deployment Key benefits VSR- RR VSR- RR x86 HOST VSR- RR VSR- RR VSR- RR x86 HOST VSR- RR - Flexible scaling by adding cores/cpus - Efficient use of hardware resources - Fast deployment of new RRs as a VM VSR architecture delivers outstanding RR performance 14
15 VSR-AA: VIRTUALIZED APPLICATION ASSURANCE AAA or PCRF 5620 SAM Blacklist FTP server, ICAP server, VSR-AA Virtualized MS-ISA or MS-ISM Gx or Radius Access Node VSR-AA Steered traffic Non Steered traffic 7750 SR BNG Key benefits - Feature parity with 7750 SR residential AA - Retains same operational model - Frees up I/O slots in 7750 SR - Quick subscriber turn-up on opt-in - Flexible scaling and subscriber load balancing over multiple VSR-AA VMs Efficiently deploy and scale application assurance and service chaining 15
16 VSR-PE, VSR-BNG, VSR-WLGW IPTV VSR SR deployment CPE AP/RGW AN AN : CO/Hub CO/Hub VSR-BNG VSR-PE CO / Hub VSR-WLGW - Provider Edge - Broadband Network Gateway - WLAN Gateway Key benefits - Fully distributed deployment model for CO/hub locations and off-net locations - Feature and operational consistency with 7750 SR, including 5620 SAM - New scale models: scale-up and scale-out Combined physical and virtual edge routing for lower cost entry and rapid deployment 16
17 VSR-PE: DATACENTER GATEWAY USE CASE Network virtualization and automation Nuage Networks Virtualized Services Platform (VSP) No network configuration, no delays, no boundaries - Automated and seamless across DC, between DCs, to enterprise VPNs No new hardware - Open programmable approach works in any existing DC Datacenter Datacenter VSR-PE Gateway to WAN from datacenter 17
18 VSR-PE: VIRTUALIZED ENTERPRISE SERVICES USE CASE Current mode of operation Physical CPE appliances FW Virtualized CPE vapp WAN acc. vapp CPE router vcpe vcpe Network-based vce L2 NT L2 NT L2 NT Access / aggregation Network Fat CPE model Access / aggregation Network Access / aggregation Network Thin CPE model PE PE vapp IP/MPLS backbone vapp VSR-PE VSR-PE - Virtual CE on 7750 SR or VSR-PE - Service chaining Key benefits - Operationally simpler - Reduced logistics overhead, fast deployment - Cost savings on branch equipment - Upsell of value add managed services - New opportunities with service chaining Rapid service innovation with low cost try before you buy 18
19 VIRTUAL NETWORK SERVICES (VNS) NEW BUSINESS SERVICES Physical Appliance NUAGE hardware SW Image = VM BYOD hardware Branch Branch MPLS VPN INTERNET 3G/4G Nuage VSP Physical Appliance NUAGE hardware LAN DC Headquarters Headquarters VNS = Policy based network automation for branches using NSG as hardware appliance/os image or Virtual Machine back SW Image = OS Physical Appliance LAN BYOD hardware Branch NUAGE hardware DC front NSG = Network Services Gateway 19
20 ENTERPRISE USE CASE SERVIÇOS PARTILHADOS DO MINISTÉRIO DA SAÚDE (SPMS) 20
21 VSR-RGW: VIRTUALIZED RESIDENTIAL GATEWAY UPnP TR69 69 VSR-RGW - vrgw on 7750 SR or VSR-RGW - Service chaining SWITCH BRG DSL, ONT, DOCSIS Access network ROUTING DSLAM CMTS OLT NAT FIREWALL VSR-RGW ROUTER Metro network Core network Key benefits - Simplified fulfillment, lifecycle management - Improved assurance / customer service - New value added services possible - Lower Subscriber Acquisition Cost Simplified consumer home, improved broadband experience 21
22 ALCATEL-LUCENT NFV/SDN ORCHESTRATION Cloudband Management System - Virtualized resource management - Overall coordination and adaptation role between VIMs and VNFMs Nuage Virtualized Services Platform (VSP) - Intra-VNF network connectivity between VNFCs - Inter-NF Service Chaining (VNF & PNF) and VNF network interfaces 5620 Service Aware Manager - Life cycle management for PNFs & VNFs - Network infrastructure management and assurance - WAN resource optimization NCO = Network Connectivity Orchestration NFO = (virtual and physical) Network Function Orchestration VNF = Virtual Network Function PNF = Physical Network Function VIM = Virtualized Infrastructure Manager VNFM = Virtual Network Function Manager 22
23 ALCATEL-LUCENT NFV/SDN ORCHESTRATION ALCATEL-LUCENT MAPPING TO ETSI NFV This is just one example of mapping OSS/BSS CLOUDBAND ORCHESTRATOR (NFVO) CLOUDBAND MANAGEMENT SYSTEM Management and Orchestration (MANO) can be implemented in many different ways to accommodate the model and environment of the customer so architecture modularity and openness is key EMS 5620 SAM VNFM Alcatel-Lucent through lots of customer trials was able to cope with the multiplicity of models NFVI VSR-BNG VIRTUAL COMPUTING HARDWARE RESOURCES COMPUTING HARDWARE VSR-PE VIRTUAL STORAGE OPERATING SYSTEM & VIRTUALIZATION STORAGE HARDWARE VSR-RR VIRTUAL NETWORK NETWORK HARDWARE VIM CLOUDBAND NODE SP providing the DC infrastructure with different VIM e.g. CloudStack, different OpenStack distros, Service chained VNFs without VNF manager VNFM interacting directly with VIM (CloudBand co-managed model) ALCATEL-LUCENT CLOUDBAND ALCATEL-LUCENT NUAGE NETWORKS 3rd Party 3rd Party VNF with their own VNFMs interacting with CloudBand (NFVO) and Nuage (SDN) 23
24 ALCATEL-LUCENT VIRTUALIZES THE NETWORK EDGE KEY TAKE-AWAYS Giving service providers both virtualized and specialized hardware deployment options for the network edge NPU - Virtualized Service Router (VSR) - Virtualized Mobile Gateway (VMG) - Virtualized Mobility Managed (VMM) Most comprehensive carrier NFV application suite x86 - Best in class performance on x86 platforms - Flexible cloud-scaling - Carrier grade reliability - Consistent operations across physical and virtualized network elements Network Functions Optimization with complementary tools 24
25 25
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