K a t h y Meier- H e l l s t e r n, P h D

Transcription

1 T h e C a r r i e r C h a l l e n g e A c h i e v i n g 5-9 s a v a i l a b i l i t y o n 3-9 s C l o u d i n f r a s t r u c t u r e K a t h y Meier- H e l l s t e r n, P h D Assistant Vice President Inventive Science, AT&T Fellow AT&T Labs Domain 2.0 Architecture and Design IEEE CQR Emerging Technology Round Table May AT&T Intellectual Property. All rights reserved. AT&T, Globe logo, Mobilizing Your World and DIRECTV are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks are the property of their respective owners. AT&T Proprietary (Internal Use Only). Not for use or disclosure outside the AT&T companies except under written agreement.

2 75% 2020 D A T A U S A G E & V I R T U A L I Z A T I O N G O A L S Data Traffic Virtualization/SDN Progress 55% 34% % 250,000% GROWTH AT&T Intellectual Property. All rights reserved. AT&T, Globe logo, Mobilizing Your World and DIRECTV are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks are the property of their respective owners. AT&T Proprietary (Internal Use Only). Not for use or disclosure outside the AT&T companies except under written agreement.

3 CARRIERS ARE TRANSFORMING to SDN Real-time, Agile Customer Enablement Improved Efficiency, Reduced Cycle Times, Innovative Services & Apps, Faster NFV ONAP (ECOMP) SDN New Paradigms for AT&T and the Telecommunications Industry AT&T Integrated Cloud (AIC) : Shared, Common, Homogeneous AT&T Internal Transformation - People, Process, Culture

4 RETHINK THE NETWORK Cheaper Agile Highly Secure More Reliable Faster More Flexible Easier to Scale

5 DOWNTIME MINUTES Virtual environment less reliable, but status quo is no longer affordable Physical vs. Virtual Downtime Comparison Application Virtualization Software Compute, Store, Fabric Power/Cooling Physical Virtual Traditional Carrier Grade 5 min downtime (5-9s) Inflexible Expensive Virtual 100s of min downtime (3-9s) Flexible Cheaper AT&T Intellectual Property. All rights reserved. AT&T, Globe logo, Mobilizing Your World and DIRECTV are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks are the property of their respective owners. AT&T Proprietary (Internal Use Only). Not for use or disclosure outside the AT&T companies except under written agreement.

6 What s Different with the Cloud? Typical Clouds Have long planned outages (days vs. hours) Commodity HW and SW fail more often than purpose-built Multi-layer and Shared Tenancy Software Changes faster 6

7 Reliability through Cloud Automation and Analytics Historical counters, KPI, and network alarms, security events Predict Time correlation and predict signatures Collect Predict Machine Learning Predict Predict Dynamic Learning of corrected actions Optimize Act Optimize Artificial Intelligence Optimize DNS attacks, network failure, traffic optimization Optimize Learn & update policies ONAP ( Open Network Automation Platform Real-time, policy-driven orchestration & automation platform for physical and virtual networks Acumos ( Industry standard for making AI apps reusable and easily accessible to any developer 7

8 Cloud Instances Have long planned outages -> Mitigate the Effects of Planned Outages with Redundancy Single site Downtime = Hours Dual site Downtime = Minutes Multi site Downtime = Seconds 3-9s (500 min/year downtime) 4-9s (50 min/year downtime) 5-9s (5 min/year downtime) 8 ONAP automates VF migration to locations that are not currently undergoing a planned outage

9 More frequent failures with commodity HW and SW -> Accurate Fault Identification and Automated Failure Recovery Networks often do not fail gradually Focus on root cause, fault classification and fast recovery Eliminate duplication between fault, performance and service tickets Automated actions based on known signatures Data-Powered Automation Collect Machine Learning Artificial Intelligence Act 9

10 Multilayer and Shared Tenancy -> Requires excellent Instrumentation and Correlation Cloud Site Application VNF Automation Layer (e.g. ONAP) Cloud Stack (e.g. Openstack) Virtual Machine (VM) Hypervisor Server Network Fabric Storage Physical Plant 10

11 Software Changes faster -> Software Stability for Agile Development Example of Stable Software Example of Unstable Software Need a process for incorporating non-functional requirements in an agile process (DEFINE) Instrumentation and testing are critical (MEASURE) Use software defects found in testing to predict residual software defects before field deployment. (ASSESS AND IMPROVE) AT&T Intellectual Property. All rights reserved. AT&T, Globe logo, Mobilizing Your World and DIRECTV are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks are the property of their respective owners. AT&T Proprietary (Internal Use Only). Not for use or disclosure outside the AT&T companies except under written agreement.

12 What about 5G? 3G/LTE LTE/5G Software/ Hardware Proprietary Monolithic Hardware-centric Software Open Interfaces Commodity hardware Open design Modular Software-centric SDN and NFV More open interfaces than LTE Separation of control and user plane Integrated Access and Backhaul Integrated Backhaul and access avoids transport densification Multi-hop scheduling and route optimization 12

13 Key Takeaways Carriers are transforming to SDN for improved efficiency, reduced cycle times, innovative services & apps, faster service delivery Commercial clouds are not as reliable as purpose-driven hardware Automation and analytics, combined with solid reliability design, can be used to achieve the required availability 13

14