Webinar how to ensure sdn-nfv doesn't break your network
Download as PPTX, PDF2 likes980 views
The document discusses the partnership between Qualitest and Qualisystems to address challenges in NFV/SDN verification and assurance processes, emphasizing the creation of an automated verification service. It highlights the need for comprehensive testing environments, compliance with ESTI ISG standards, and the benefits of utilizing advanced automation for continuous integration and delivery in agile frameworks. Additionally, it outlines the methodology for developing effective test environments to enhance network performance and resource utilization.
Webinar how to ensure sdn-nfv doesn't break your network
- 1. How to ensure SDN/NFV doesn't break your network? United States +1 (646) 558-2111 United Kingdom +44 (0) 330 221 9914 Access Code: 674-242-804
- 2. Bryon Lowen Vice-President Telco at QualiTest Alex Henthorn-Iwane Vice-President Marketing at QualiSystems Webinar Presenters
- 3. Agenda QualiTest & QualiSystems partnership Challenges with NFV – what, when and why to verify with SDN/NFV? Summary Creating an Automated SDN / NFV verification as a Service Building SDN / NFV assurance process
- 4. QualiTest & QualiSystems partnership Challenges with NFV – what, when and why to verify with SDN/NFV? Summary Creating an Automated SDN / NFV verification as a Service Building SDN / NFV assurance process
- 5. QualiTest & QualiSystems partnership •Pure Play Testing focus •Passion for testing •World’s 2nd largest •Telco expertise •Automation software •Cloud management •Test & CI automation •Carrier DevOps
- 6. QualiTest & QualiSystems partnership Challenges with NFV – what, when and why to verify with SDN/NFV? Summary Creating an Automated SDN / NFV verification as a Service Building SDN / NFV assurance process
- 7. • End-to-end services are already often quite complex o Many service scenarios won’t change except for the presence of VNFs o Consider topology below for end-to-end (E2E) network service (NS) including IMS-core enabled voice services in Cable MSO What is a Service? CMTS eDVA PCMM S_CSCF I-CSCF P-CSCF MRFC/MRFP HSS TAS VM CAS CCF OSS BGCF/ ESCF MGCF STP SRP CMS SBC SIP Peer Networks PSTN TNS
- 8. • Endpoints aren’t just handsets, home gateways, fixed CPE o Clusters of VMs o VMWare, OpenStack/KVM • New WAN topology constructs/protocols are emerging o Federation of controllers. OpenFlow? Network Virtualization Overlays? PCEP? Segment Routing? What is a Service? How Cloud/NFV Changes Things Cloud DC1 Cloud DC2 Data Center Fabric Storage V M V M V M V M V M V M V M V M V M Hypervisor Hypervisor Hypervisor Compute Network Cloud Orchestration Data Center Fabric Storage V M V M V M V M V M V M V M V M V M Hypervisor Hypervisor Hypervisor Compute Network Cloud Orchestration MPLS/SDN Core
- 9. • Performance of VNFs must be characterized and certified on hypervisor/server hardware • North-south and east-west dimensions to performance testing o How does traffic perform when going just through the hypervisor? o How about when it exits a physical port and goes to a PNF device? What are New Performance Testing Challenges IaaS/PaaS/SaaS IaaS/PaaS/SaaS Data Center Fabric Storage V M V M V M V M V M V M V M V M V M Hypervisor Hypervisor Hypervisor Compute Network Cloud Orchestration Data Center Fabric Storage V M V M V M V M V M V M V M V M V M Hypervisor Hypervisor Hypervisor Compute Network Cloud Orchestration
- 10. When & Why: SDN/NFV DevTest Speed & Scale Implications Network as Utility • Waterfall timeframes • Long certification cycles • Manual, little automation OTT NFV SDN OSS/BSS Dev/Test Cycle App Lifecycle is Agile • Agile timeframes • Implies automation VS
- 11. Service chain permutations could be endless o Design permutation of vendor solution when defining the architecture (interoperability) o Operational permutation at the time of the service instantiation (service differentiation) Agility = IT rate of change x 100 o Performance and scale testing How do you qualify and certify these service in an agile fashion? When & Why: NFV DevTest Scale Implications Admins make 500 updates / day peak APIs support 10,000’s updates / day peak Cloud Service no admin - dynamic & automated Today Operations staff are involved
- 12. QualiTest & QualiSystems partnership Challenges with NFV – what, when and why to verify with SDN/NFV? Q&A Creating an Automated SDN / NFV verification as a Service Building SDN / NFV assurance process
- 13. Building SDN / NFV assurance process • Reliable Service • Right Price • Good SLAs • Increasingly Complex • Renegotiate contracts • Not affect QOS Build strong assurance process to capitalize SDN / NFV potential
- 14. QualiTest NFV validation process • QualiTest aims to create a unified end-to-end approach to service assurance and network performance NFV Management Orchestration Infrastructure Migration
- 15. Assure full compliance to ESTI ISG Standards. Assure full compliance to NFV requirements for any network equipment provider and streamline the ability of vendors and users to be able to implement compatible NFV solutions Build a comprehensive Test Environment, including Control plane and Data plane workload simulation tools, network analytics, QoS and QoE monitoring probes Test management and Orchestration prior to VNF migration, including each component (e.g. Orchestrator, Vnfm, VIM) Test the VNF architecture and implementation to assure smooth transition ESTI NFV ISG Compliance (NFV-Co) NFV Compliance for Vendors (NFV- Ven) NFV Test Environment (NFV-TE) MANO Testing (MANO-T) VNF Migration (VNFM-T) QualiTest NFV validation process
- 16. Assure full compliance to ESTI ISG Standards. ESTI NFV ISG Compliance (NFV-Co) NFV Compliance for Vendors (NFV- Ven) NFV Test Environment (NFV-TE) MANO Testing (MANO-T) VNF Migration (VNFM-T) (NFV-Co) ETSI NFV Compliance ETSI ISG Standards Test procedure Assuring compliance aims to find the deviations from standards • MANO • VNF/NE • Analyse ISG current standards • Prepare compliance requirements • Analyse each NFV component / int • Define gap points and analyse • Repeat steps 1-6 for each VNF and NE
- 17. Assure full compliance to NFV requirements for any network equipment provider and streamline the ability of vendors and users to be able to implement compatible NFV solutions ESTI NFV ISG Compliance (NFV-Co) NFV Compliance for Vendors (NFV- Ven) NFV Test Environment (NFV-TE) MANO Testing (MANO-T) VNF Migration (VNFM-T) (NFV-Ven) Compliance for Vendors MANO VNF • VNF Descriptor format • VNF redundancy model • VNF state transitions • VNF Package • Allocation of addresses • Scaling event types and format • Maintain records on VNF Packages • VNF design patterns • VNF update and upgrade • VNF properties • VNF Topological Characteristics • VNF States and Transitions • VNF fault management
- 18. Build a comprehensive Test Environment, including Control plane and Data plane workload simulation tools, network analytics, QoS and QoE monitoring probes ESTI NFV ISG Compliance (NFV-Co) NFV Compliance for Vendors (NFV- Ven) NFV Test Environment (NFV-TE) MANO Testing (MANO-T) VNF Migration (VNFM-T) (NFV-TE) NFV Test Environment
- 19. (NFV-TE) NFV Test Environment NFV provides great flexibility: • Build parallel test environments • Scale up and down compute resources • Copy any existing environment Environment build guidelines: • Management and Orchestration should be similar to the production • NS and VNF Instantiation should be similar to production environment • Same level of resources should be allocated. Test Appliances: • Simulate workload traffic on the client / server • Simulate both data plane & control plane traffic • Measure key metrics data & control plane Appliances vs. Physical Test Appliances: • Virtual test appliances are more cost effective • Physical test appliances are recommended for highest levels of data-plane performance or microsecond-level timing accuracy
- 20. Test management and Orchestration prior to VNF migration, including each component (e.g. Orchestrator, Vnfm, VIM) ESTI NFV ISG Compliance (NFV-Co) NFV Compliance for Vendors (NFV- Ven) NFV Test Environment (NFV-TE) MANO Testing (MANO-T) VNF Migration (VNFM-T) (MANO-T) MANO Testing
- 21. (MANO-T) MANO Testing The first step is to test NFV Management and Orchestration Architectural Framework NFV Orchestrator VNF Manager (VIM) and NFV Infrastructure (NFVI) VIM– VNF Manager (Vi-Vnfm) Orchestrator – VIM (Or-Vi) The VNF is deployed as one or more Virtual Machines; source: ETSI GS NFV 002 v1.2.1
- 22. Test the VNF architecture and implementation to assure smooth transition ESTI NFV ISG Compliance (NFV-Co) NFV Compliance for Vendors (NFV- Ven) NFV Test Environment (NFV-TE) MANO Testing (MANO-T) VNF Migration (VNFM-T) (VNFM-T) VNF Migration Static testing VNF-Mano Integration Conformance testing VNF Internal functionality Scalability/Performance End-to-end/system test
- 23. QualiTest & QualiSystems partnership Challenges with NFV – what, when and why to verify with SDN/NFV? Summary Creating an Automated SDN / NFV verification as a Service Building SDN / NFV assurance process
- 24. Goal is Continuous Processes: Continuous Integation/Delivery Automated BuildCode Commit Automated Unit Test Automated Sanity TestAutomated & Scaled Full Regression TestAutomated Test Results Collection Automated BI Report Generation Automated Build, Deploy, Test Auto-scaled regression tests Applied to service & network changes
- 25. QualiSystems Summarized Processes Infrastructure Test Page 25 Automation Platform • Self-Service System • Infrastructure Modelling • Reservation / Scheduling • Provisioning Automation • Reporting / Utilization • Test Automation • Test Results Reporting • CI Integration
- 26. Step 1: Automate all Infrastructure Physical Labs MaaS Virtual Labs IaaS & PaaS • Build virtual labs for VNF-only scenarios • Consolidate or federate virtual & physical labs into private/hybrid clouds
- 27. CloudShell Resource Management • Any resource: virtual, physical, logical (IP prefix, software license) • User-defined resource tagging to easily find the type of device you need • Eliminates manual searching • Customizable resource abstractions enable efficient resource pooling All resources managed in a single repository
- 28. Ensure Orchestration can Handle Network Topologies = Carriers adopting infrastructure orchestration to build DevOps have found that most cloud management platforms only support compute concepts CloudShell orchestration is capable of handling E2E NS topologies
- 29. Replace static diagrams with a live workspace Live Topology • Drag & drop devices • Draw required connections and activate • Powerful search capabilities based on device attributes • Abstract topologies • Power on/off devices by controlling PDUs
- 30. Step 2: Create Lab as a Service Cloud • CloudShell allows you to create self-service access to full network environments built and provisioned on demand • Make available to internal and external users: • Including vendors, contractors Key goals: • Increase efficiency utilization of test lab resources • Reduce ratio of setup to test time Select environment Verify availability Reserve Setup Testing activities Collaborate Teardown
- 31. Reservation & Scheduling • Plan ahead lab operations • Automatically resolve allocation conflicts • Guarantees availability of devices for tests • Only lock up resources when they are needed for testing • Promotes efficient sharing Improved sharing through reservation & scheduling
- 32. • “One-Click” is first step toward continuous • Self-service users can easily launch entire certification from UI • Integrate with ALM to ensure consistent reporting • Certification can be reused for many stages: • New technology and early stage service proof of concept testing • New service introduction • Vendor interoperability testing • Contractor code qualification Step 3: Create “One-Click” Certification
- 33. Tight Integration between TestShell & CloudShell Create an Environment Develop a Test Create the Automation Suite Execute and Monitor the Suite Develop test in TestShell Studio in conjunction with a live CloudShell environment for greater accuracy, easier debugging Suite = reservations & associated tests
- 34. What Happened when a Cable MSO Built an “As-a-Service” Approach Overall: Complete change in the way devtest team conducted business Measured: • 15% annual operations cost savings • 20% immediate reduction in certification cycles • 33% immediate increased in certification coverage and improving • 100% increase in resource utilization due to 24/7 service availability Ongoing observations: • Earlier certification by internal departments and vendors moves quality to the left in the cycle—still measuring outcomes • Eliminated need for extensive travel time and costs on part of vendors and contractors • Increased compliance with their methodology and standards via automation • Increased pace of innovation
- 35. QualiTest & QualiSystems partnership Challenges with NFV – what, when and why to verify with SDN/NFV? Summary Creating an Automated SDN / NFV verification as a Service Building SDN / NFV assurance process
- 36. Summary • Combined approach, building on a methodology of test processes and automation. • There will also be a skills pivot as organisations transition to this virtualised environment. • Increased pace of innovation. Thankyou