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Communication Networks Reloaded - Intel NFV Workshop


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Tech talk on Lean NFV Ops (Network Functions Virtualization) which discusses key concepts and use cases. Live demonstration available at Alcatel-Lucent's Carrier Network Virtualization booth.

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Communication Networks Reloaded - Intel NFV Workshop

  1. 1. 1 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Communication Networks Reloaded Jose de Francisco, Cloud Innovation Center (CIC) Intel NFV Workshop. Palo Alto, November 30 2015
  2. 2. 2 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Agenda 1. The evolution of “useful” things 2. Deployment strategies 3. Challenging Present Mode of Operations 4. Defining “Lean” in NFV’s context 5. The journey to a Future Mode of Operations 6. Virtualization of mobile core and IMS (ETSI NFV use case #5) 7. Service function chaining 8. Reliability, availability and serviceability 9. Deconstructing Lean NFV Ops 10. DevOps: Development and operations 11. Ecosystem mapping and technology readiness 12. Early challenges 13. Closing comments 14. Links to additional resources “If you can’t explain it simply, you don’t understand it well enough.” Alcatel, Lucent, Alcatel-Lucent and the Alcatel-Lucent logo are trademarks of Alcatel-Lucent. All other trademarks are the property of their respective owners. The information presented is subject to change without notice. Alcatel-Lucent assumes no responsibility for inaccuracies contained herein. Albert Einstein
  3. 3. 3 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. “The evolution of useful things” Henry Petroski is an engineer specializing in failure analysis and professor both of civil engineering and history at Duke University. The Evolution of Useful Things Published in 1992 Vintage Books, Random House, New York ISBN 978-0-385-36489-8 “The form of made things is always subject to change in response to their real or perceived shortcomings, their failures to function properly (…) there can be no such thing as ‘perfected’ artifact” “There is an ongoing evolution of new needs created by the developers of new designs (…) that require new tools for assembly and disassembly, and these new tools in turn enable still further new designs” “Ill served by an advisor who looks too narrowly at technical indicators to prognosticate performance in the marketplace” “Focusing too closely on the immediate design problem (…) frequently results in solutions that themselves give rise to more difficult design problems” “Every technological change has the potential for being both cursed and praised”
  4. 4. 4 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. NFV deployment strategies
  5. 5. 5 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Present Mode of Operations (PMO) challenges • High lead times for new system and/or service introduction estimated in months and years where technology silos prevail • Complex overall Method of Procedure given hardware specifics and planning processes challenging end-to-end operations • Low server to administrator ratio in environments comprised of largely physical elements, tightly integrated software and hardware under multiple management systems • High human latency due to number of manual deployment, maintenance and upgrade process, communications, forms, also impacted by network and IT disconnects LT: Lead Time MOP: Method of Procedure S/A: Server to Administrator Ratio HL: Human Latency
  6. 6. 6 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Lean NFV ops Lean NFV ops efficient Service Level Agreement Lowest cost per workload bit high utilization levels high availabilityeffective “effective and highly efficient service delivery at any scale” FMOPMO crossing the chasm
  7. 7. 7 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Drafting FMO’s journey IaaS – Infrastructure as a Service Common infrastructure management Resource orchestration Application multi-tenancy PaaS – Platform as a Service Solution templates Key performance indicators Selective lifecycle automation Distributed architectures Service level orchestration Fulfilment and assurance Predictive analytics End-to-end automation Autonomics, self-organizing Single pane of glass Lifecycle management Resource orchestration Analytics
  9. 9. 9 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ETSI NFV use case #5: vEPC and vIMS • “Mobile networks are populated with a large variety of proprietary hardware appliances […] leverage standard IT virtualization technologies to consolidate different types of network equipment located in NFVI-PoPs.” • “Flexible allocation of Network Functions on such hardware resource pool could highly improve network usage efficiently in day-to-day network operation.” • “Higher service availability and resiliency provided to end users/customers by dynamic network reconfiguration.” • “Elasticity: capacity dedicated to each Network Function can be dynamically modified according to actual load on the network, thus increasing scalability.” • “Topology reconfiguration: Network topology can be dynamically reconfigured to optimize performances.” • “Creation of a competitive environment where innovative implementations of third-party network applications can be supplied by unlocking the proprietary boundaries of current Mobile Core and IMS implementations.” • “Designing newer resiliency schemes becomes possible by utilizing the portability of the VNF instances in the form of, but not limited to VM relocation, replication, etc. […] the relocation of the managed sessions and/or connections needs to be handled appropriately to achieve operator desired service continuity and service availability.” • “Coexistence of virtualized and non-virtualized network functions.” Mobile core network functions: – EPC core and adjunct network functions, e.g. MME, S/P-GW, PCRF, etc. – 3G/EPC interworking network functions, e.g. SGSN, GGSN, etc. • All IMS network functions, e.g. P/S/I=CSCF, MGCF, AS. Virtualization target:
  11. 11. 11 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Service Function Chaining (SFC) demonstration SFC leverages NFV and SDN • Service function is decoupled from network topology, physical network is not required to be modified • Users contract different services comprised of several applications • Application sets are dynamically “stitched” in real time Lean NFV Ops demo screenshot Operational flexibility: • Application-driven provisioning • Intelligent traffic steering, capacity adjusted based on utilization • Common deployment of service functions • Usage across multiple domains • SSO: Self-service operations • Enables sharing information between service functions • Simplify access to virtualized apps • Upsell/cross-sell services
  13. 13. 13 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Reliability, Availability, Serviceability (RAS) demonstration Lean NFV Ops demo screenshot • Service assurance encompasses cloud, network, application analytics and compliance • Advanced correlation relies on predictive analytics and unified event management • Automation involves root cause analysis and resolution Addressing RAS: • Dynamic CoD (Capacity on Demand) • Automated recovery and service continuity • Sustaining HA (High Availability) environment • Distributed system, N+K redundancy, active standby failover • Smart placement for VM relocation, replication • Delivering fine grained and correlated analytics • Autonomation provides controls and override, involves operations team and enables immediate attention • A recommendations engine presents alternative solutions starting with the most optimal
  15. 15. 15 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Deconstructing Lean x NFV x Ops Lean column adapted from Kim B. Clark and Takahiro Fujimoto, Product Development Performance p. 172 and Mary and Tom Poppndieck, Implementing Lean Software Development p. 14.
  16. 16. 16 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Continuous development & integration (DevOps) Issue tracking Version control Continuous integration Build Hooks and triggers Install Deliver/publish Integration test Code review Automation Venn Diagram - Automation PMO FMO Software + hardware delivery Focus on software delivery Dedicated hardware (appliance model) Virtualized and cloud infrastructure Long lead times Short, iterative cycles, one step release Fixed release schedule Flexible, frequent delivery Waterfall development model Agile software development Manual processes Single source repository One click - highly automated build Self-testing, bullet proof installation Automated version control, notifications Undetected issues can snowball Early issue detection Back-end loaded process Iterative process Compartmental handover Cross-functional process and workstyle Collaborative delivery Risk averse Entrepreneurial
  18. 18. 18 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Ecosystem mapping and technology readiness The journey can plot different paths based on readiness, adoption levels and matchmaking choices launch, live ops, LCM validation in relevant environment agile development use case - proof of concept projects basic technology research Readiness level provides understanding on maturity
  19. 19. 19 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Early industry challenges 1. Shifting from PoC focus to successfully crossing “the ops’ chasm” 2. Separating hype and vaporware from what actually works today 3. Assessing maturity and technology readiness levels (the journey) 4. Sprawling virtualization silos and conflicting management systems 5. Bloated architectures shortchanging operations, scalability or performance 6. Working with physical and virtual elements in hybrid environments 7. Industry standards and fragmentation 8. Diverging from cloud fundamentals that we fell in love with 9. Legacy technologies’ last gasp 10. End-to-end (eco)systems engineering and open source 11. Business transformation and organizational dynamics The Wizard of Oz “Toto, I’ve a feeling we’re not in Kansas anymore”
  20. 20. 20 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Closing thoughts and Q&A Present Mode of Operations (PMO): • Widespread industry concerns about the risks and cost of ever growing complexity • Overly lengthy lead times compound the problem in today’s changing environment • Hybrid physical and virtual environments are expected to co-exist in the short and mid terms Future Mode of Operations (FMO): • Making “network softwarization” and “dynamic services” happen dominates work on next-generation systems • Service level orchestration becomes an operational objective • NFV and SDN involve emerging technologies and IT practices that are set to disrupt the telecommunications industry • “Cloud” presents new challenges for network operators, some already addressed by fast evolving “cloud solutions” • Technical prowess alone is not enough as organizational and business models are morphing • Starting and staying “lean” at any scale throughout NFV’s journey is of the essence
  21. 21. 21 COPYRIGHT © 2015 ALCATEL-LUCENT. ALL RIGHTS RESERVED. Additional sources 10’ 20’ Webpage Videos