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Software Defined Networking AFCEA Short Course Robert KImball CGSI CTO 20 April 2016 Copyright © Ciena Corporation 2015. All rights reserved. Confidential & Proprietary. User Applications Compute and Storage Network Connectivity Network Functions 3 Current Network Software-Defined Network Open APIs Software Transformation SDN/NFV Platform Open interfaces and protocols Infrastructure Transformation Closed Open Application Layer Control Layer NB I NB I NB I Business Applications Network Services Controller Framework Common APIs Open Platform • Diverse applications • Planning, optimization, services, etc. • Common framework • Multi‐vendor NW SW • Routing, Resiliency Standard Interfaces Infrastructure Layer • Standard, programmatic interfaces across layers • Open/common device data models Application Layer Cloud Orchestrator Compute Storage Network Orchestrator NBI Parent Controller Control Layer Validated in the Joint OIF/ONF Prototype Demo in Fall 2014 Multi‐layer control Multi‐vendor, Multi‐ domain Demo • • Domain Controller Domain Controller SBI SBI NE NE NE Domain 1 Domain Controller NE NE NE Domain 2 NE NE NE Domain 3 Infrastructure Layer 5 Carrier Labs 9 Vendors OpenFlow Optical Transport Extensions Prototype NBI for Connectivity Service and Topology Whitepaper available with details SDN Abstractions Apps Network services Apps Network services top down Controller bottom up Open API to configure forwarding plane of NE is key to longterm benefits of SDN Apps mediation NETCONF Network higher layer APIs are key to initial SDN benefits For immediate benefits to network operators, we must also focus on higher level APIs Off-line communication Per layer planning, inventory, billing EMS/NMS • Static configurations IP Packet OTN • Paths are selected one layer at a time Packet Distributed control at every layer DWDM OTN DWDM • Inter-layer coordination must be manually planned • Restoration is single layer, resulting in conflicts across layers and inefficiencies Virtual Network Functions Virtual Infrastructure Physical Network Elements Resource Adapters are available for 50+ devices from these and other vendors Centralized or distributed network functions CPE with compute capacity NFV Network Function Virtualization Centralized offthe-shelf server OSS/BSS Vendor X Cisco Prime ALU NSP Multi-Domain Service Orchestration openmano Overture Ensemble Cisco / Tail-f ALU SAM SDN Mgmt. and Control HP Director VMware NSX Juniper Contrail Cisco ACI ALU CloudBand ALU Nuage NFV MANO Data Center SDN Controller OSS/BSS Planet Operate (SDN/NMS) SDN Mgmt. & Control Planet Orchestrate (NFV) NFV MANO DC SDN Controller Firefly Data Center Data Center Software PS Planet Orchestrate (MDSO) Multi-Domain Service Orchestration Matrix Marketplace BP Marketplace Open APIs • End-to-End Service Provisioning • FCAPS, Inventory… OSS/BSSREST APIs Multi-Domain Service Orchestration NMS Legacy Network • • • • FCAPS Inventory Topology ... WAN SDN Controller SoftwareDefined WAN • • • • FCAPS Inventory Topology ... NFVO NFV Cloud • • • • FCAPS Inventory Topology ... DC SDN Controller Data Center • • • • FCAPS Inventory Topology ... Completing Transport SDN Southbound Interface – ONF Follow-On OpenFlow Extensions • Autonomous Functions – programmability of local functions • • Generation and processing of Performance Monitoring (bit errors or SNR) Pre-programmed local protection functions to meet service requirements Northbound Interface – OIF API Project • OIF Project to define API specs • • • Based on OIF/ONF prototyping and testing of REST/JSON APIs Service Request, Topology, others Use ONF work on commonality across technologies • • Common Core Information Model Mapping to REST/JSON interfaces “NETCONF is the standard for installing, manipulating, and deleting configuration of network devices while YANG is used to model both configuration and state data of network elements. YANG structures the data definitions into tree structures and provides many modeling features, including an extensible type system, formal separation of state and configuration data, and a variety of syntactic and semantic constraints. YANG data definitions are contained in modules and provide a strong set of features for extensibility and reuse.” Carl Moberg Cisco http://mysite.com/users http://mysite.com/users/jdoe http://mysite.com/users http://mysite.com/users http://mysite.com/users/jdoe http://docs.rackspace.com/files/api/v1/cfdevguide/content/View_List_of_Containers-d1e1100.html http://docs.openstack.org/api/openstacknetwork/2.0/content/List_Networks.html http://rpc.geocoder.us/service/json?address http://rpc.geocoder.us/service/csv?address BSS/OSS Service activation, Service assurance, Billing, … SOA TMF feature Control Layer feature feature operating system CORBA NMS Web Srv RMI legacy API TMF API Inventory, Performance, Fault, Trouble Ticketing, BGP,PCE-P, I2RS OF switch EMS Discover, Monitoring, Fault, Provisioning, … XML TL1 SNMP Device Management Configuration, Provisioning, Inventory, … IP, Ethernet, SDH Infrastructure Layer OF switch OF switch OF switch SDN Abstractions Apps Apps Network services Apps Network services Controller NETCONF mediation Network higher layer APIs are key to initial SDN benefits Open Source SDN Controller Targeted for service providers and mission critical networks Developers include service providers, vendors, and academia Competes with other controllers Open Daylight Open Flow Detailed Roadmap at: h1ps://wiki.onosproject.org/display/ONOS/Roadmap+2015% 3A+Distributed+Core Blue Planet NFV SDDC SD-WAN OSS/BSS NMS Legacy Network • • • • FCAPS Inventory Topology ... WAN SDN Controller SoftwareDefined WAN • • • • FCAPS Inventory Topology ... NFVO NFV Cloud • • • • FCAPS Inventory Topology ... DC SDN Controller Data Center n Recreates the Silo Inefficiencies of the Legacy Era • • • • FCAPS Inventory Topology ... • End-to-End Service Provisioning • FCAPS, Inventory… OSS/BSSREST APIs Multi-Domain Service Orchestration NMS Legacy Network • • • • FCAPS Inventory Topology ... WAN SDN Controller SoftwareDefined WAN • • • • FCAPS Inventory Topology ... NFVO NFV Cloud • • • • FCAPS Inventory Topology ... DC SDN Controller Data Center • • • • FCAPS Inventory Topology ... BSS/OSS Service activation, Service assurance, Billing, … SOA TMF feature Control Layer feature feature operating system CORBA NMS Web Srv RMI legacy API TMF API Inventory, Performance, Fault, Trouble Ticketing, BGP,PCE-P, I2RS OF switch EMS Discover, Monitoring, Fault, Provisioning, … XML TL1 SNMP Device Management Configuration, Provisioning, Inventory, … IP, Ethernet, SDH Infrastructure Layer OF switch OF switch OF switch Event Event Multi-Domain Orchestration Layer Network View •Network configuration is responsive to real world events •Paths through the network •Network element configurations •Which equipment employed •Automated response •Increased resiliency Network Management System ( NMS ) System correlates events to infected path Working Path Known Secure Path Targeted flow is dynamically provisioned to known secure path System triggers switch to secure path WAN Automation improves ✔ Create new network services quickly ✔ Optimize network configurations in real-time ✔ Simplify network provisioning ✔ Create new virtual networks quickly ✔ Create virtual networks across multi-vendor networks Use lower-cost routers and switches -0.4 -0.2 0 0% 0.2 0.4 0.6 0.8 1 100% Source: Infonetics Research – SDN and NFV Strategies: Global Service Provider Survey, July, 2013. (survey representing 53% of global Telecom CapEx) 168k+ 500+ LDN, Metro Fiber, Network-to-Network Subsea, Terrestrial Interconnects 205/28 20K+ 205 Cities in 28 Countries Buildings Directly On-Net * Savings are a function of utilization and metro size Best Service of the Year – EMEA Service Provider of the Year – EMEA * Savings are a function of utilization and metro size Controller OF-minus other? OF 2.x