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Why Automate the Network?

Hank Preston gave a presentation on network automation and Cisco DevNet. He discussed why networks should be automated to reduce errors and improve change management. He introduced DevNet, which aims to build a developer community around Cisco platforms. He provided a glimpse into future networking approaches like network as code and controller-based operations. He outlined tools and skills needed for network automation, noting that network engineers can acquire programming skills to transition to netdevops.

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Hank Preston, Principal Engineer NetDevOps Evangelist ccie 38336 R/S An introduction to Network Automation and Cisco DevNet Got Automation? @hfpreston github.com/hpreston
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • Why automate the network? • Introduction to DevNet • A Glimpse into the “Future” • Evolution of the Network Engineer Agenda
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Why Automate the Network?
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The Network…
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The Network…
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The Network…
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The Network…
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The Network…
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The Network…
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • Functional but considered fragile • Network configuration more “art than science” • Tribal knowledge of key engineers Today’s reality…
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public “Every time we implement a network change something goes wrong…” “Isn’t it great, our switch hasn’t been rebooted in 6 years” “We can’t update/change the network, our business won’t allow it” * Paraphrasedquotes from actual network operators
Don’t encourage this kind of behavior!!!!
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 74% of operators report network changes have significantly impacted their business* 97% of operators admit human factors cause network outages* 22% of unplanned outages caused by human error**
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Today’s Network Realities Sequential and Manual Infrastructure Provisioning Snowflake Infrastructure and Timecapsules of Configuration
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public In 2014, we created
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Mission Drive business growth for Cisco and its partners and customers Build a fiercely loyal community and ecosystem Drive API excellence and developer experience Drive industry transformation Make innovation easy Make DevNet developers successful
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Community
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Building an industry ecosystem with Cisco DevNet Application Developers Accelerate Digitization Customers and Partners Open APIs for Cisco Platforms Cisco’s Developer Program Networking Professionals IoT Cloud Networking Data Center Security Analytics & Automation Open Source Collaboration Mobility
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public WORLD WIDE TECHNOLOGY, INC ITALTEL SPAAVODAQ AG IBM ACCENTURE VERIZON SERVICES CORP. DIMENSION DATA NETDESIGN A/S TELSTRA CORPORATION LIMITED BT SWISSCOM AG PROXIMUS TELINDUS LUXEMBOURG CDW Bell Canada ALPHAWEST SERVICES AT&T SERVICES, INC Ericsson AB ORANGE BUSINESS SERVICES INSIGHT DIRECT USA INCTELUS COMMUNICATIONS PRESIDIODEUTSCHE TELEKOM AG MACROVIEW TELECOM NWN CORPORATION ITC ITOCHU TECHNO-SOLUTIONS CORPORATION (CTC) Radware Ltd XIANS HARRIS CORPORATION BECHTLE LOGISTIK & SERVICE GMBH CenturyLink NETCLOUD AG CERNER CORPORATION NETCRAFTSMEN 5thColumn LLC NETECH CORPORATION Deloitte Vodafone Dell Purple WiFi Ltd Pivot Technology Solutions TATA CONSULTANCY SERVICES LIMITED BAE Systems AIRBUS GENERAL ELECTRIC GENERAL MOTORS Data from user profile page, sample size 20K DevNet Community
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public SlashData Award
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Learn DevNet Learning Tracks Code DevNet Sandbox & APIs Inspire DevNet Creations & Code Exchange Connect DevNet Community & Events
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Enabling end-to-end developer success API Experience Developer Sandbox Training and Tutorials Sample Code Co-Creations Developer Advocacy </> build learn evolvedeveloper.cisco.com
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Sandbox: Networking
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Learning Labs: Networking
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Events!
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Get Hands On With DNA Center APIs for Managing Intent by Adam Radford DevNet Hands-On Workshop “Really positive feedback. I explained we were working on a more comprehensive framework and people seemed really happy.”
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Coding 1002 - Getting Started with Python by Matt Denapoli DevNet Theater “Seeing advanced, and returning attendees. But still strong demand for Intro to Coding topics.”
Who wants to be a Millionaire? A class in Creating Your Own Currency on Blockchain Tom Davies & Vallard Benincosa DevNet Hands-On Workshop
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Express Events Expanded Around the World Pittsburgh Sydney Mexico Brazil Jakarta Costa Rica …in 70+ cities in 30+ countries
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The DevNet Ecosystem: Connect to Create Developer Ecosystem Business Ecosystem Solutions APIs Creators Consumers Sellers Buyers Cisco Platforms
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The DevNet Ecosystem: Connect to Create Developer Ecosystem Business Ecosystem Solutions APIs Creators Consumers Sellers Buyers Cisco PlatformsDevNet Developer Site DevNet Code Exchange DevNet Ecosystem Exchange
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Code Exchange • Curated software built around Cisco platforms & APIs • Sample code • Connectors • Open source • Built on GitHub • Software written by the community • Connect to expert developers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public DevNet Ecosystem Exchange • Applications that can be used to build solutions • Ecosystem partners (ISVs, IHVs) who provide solution components • Ecosystem partners (SIs) who can customize/build solutions for business needs • Promote visibility of applications/tools to the Cisco Ecosystem DevNet SolutionsPlus
A Glimpse into the Future of Networking Follow Kevin on Twitter @kecorbin
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Consistent Version Controlled Infrastructure deployed with Parallel & Automated Provisioning
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Network Operational Models Network as Code IT as a Service Controller Driven • Git based workflows • Close alignment to software DevOps approaches • Leverage abstractions, such as controllers, when possible • Service Catalog based workflows • Deliver End User Self Service experience in “eStores” • Network Controller based workflows • Evolving traditional network operation model 36
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • Network as Code and Configuration Management strategies • Continuous Development approach to network changes. • Continuous health and improvement approach to monitoring. Configuration, Automation & Monitoring Principles
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public NetDevOps CICD Pipeline
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Device Interfaces Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Network Controllers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Continuous Integration Build Server Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Source Control systems enable easy management of documents, code, and other pieces of information with tooling to support collaboration, revision management, and easy distribution. Source Control Network Device Interfaces Network Controllers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Network Device Interfaces Network Controllers The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Build Server Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services CI Servers monitor source control and automate the process of deploying, testing, and other actions as updates are made. Continuous Integration
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Network Device Interfaces Network Controllers The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Store and serve objects. Eg Objects:Templates, Containers, Binaries Eg Protocols:http, scp, ftp, etc Artifact Repository
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Network Device Interfaces Network Controllers The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Network Service and Configuration Management tools enable Network as Code and ensure the desired state of the network. Network Service and Configuration Management
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Network Device Interfaces Network Controllers The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Assure network health through the evaluation of configuration and operational state. Network Verification
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Device Interfaces Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Network Controllers Enable programmatic interaction for configuration and telemetry operations through transport protocols and data models. Network Device Interfaces CLI SNMP NETCONF RESTCONF REST gRPC JSON-RPC YANG
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Device Interfaces Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Network Controllers Network Controllers provide an abstraction layer to simplify device management. Network Controllers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Network Virtualization and Simulation Platforms support creating and managing network topologies for use across development,test, and production environments. Network Virtualization / Simulation Platforms Network Device Interfaces Network Controllers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Support RBAC, AAA, & Certificate Services across network. Security Services Network Device Interfaces Network Controllers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure ServicesDeliver required services to thenetwork. Eg Services:IPAM, DHCP, DNS, NTP Infrastructure Services Network Device Interfaces Network Controllers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public The NetDevOps Engineers Tool Chest Source Control Network Virtualization / Simulation Platforms Network Service and Configuration Management Continuous Integration Network Verification Telemetry & MonitoringSecurity Services Artifact Repository Infrastructure Services Ingest, process, & makeavailabletelemetry data from the network. Eg Sources:syslog, netflow, gRPC, SNMP Telemetry & Monitoring Network Device Interfaces Network Controllers
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • Commercial vs Open Source • Programming language • Supported integrations • Popularity in community • Relevant examples • Tool Capabilities • Used elsewhere in organization How to pick a tool? (Not in priority order) Often no one tool will fit, using multiple is okay too!
But I’m just a router jockey… Follow Bryan on Twitter @bryan25607
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Network Skills • Spanning-Tree • Routing Protocols • QoS • VPN Design • VOIP • Fibre Channel • Security Policy • MPLS Programming Skills • TCL • EEM • Expect Scripts The ”Traditional” Network Engineer
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Network Skills • Layer 2 & 3 Fundamentals • Quality of Service • Security and Segmentation • Linux Networking • Container Networking • Cloud Networking • IOT Networking • Model Driven Programmability • Network Function Virtualization Platform Skills • Linux Administration • Container Fundamentals • Micro Service Platforms • Cloud Fundamentals Programming Skills • Data Formats (ex: JSON/YAML) • Python and APIs (ex: REST) • Source Control (ex: git) • Configuration Management (ex: Ansible) The NetDevOps Engineer
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Getting from A -> B Phase 1 • Python • REST APIs • JSON/XML • git/GitHub • Linux Skills • Ansible • Docker • NETCONF/YANG • Linux Networking • Container Networking • NFV • Network Controllers • IOT Networking • Cloud Networking • ”DevOps” Phase 2 Phase 3 As Needed
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Questions?
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public • NetDevOps Readings • Embrace NetDevOps, Say Goodbye to a "Culture of Fear” • NetDevOps Goes Beyond Infrastructure as Code • What does "Network as Code" Mean? • A Network Engineers Journey in Programmability • NetDevOps and the Rise of the Programmable Network • NetDevOps Learning Resources • NetDevOps Live! Weekly Technical Talks • Network Programmability Basics Video Course • NetDevOps Videos • How to be a Network Engineer in a Programmable Age • Network as Code in Action • Benefits of Configuration Management What do do next?
© 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public Got more questions? Stay in touch! hapresto@cisco.com @hfpreston http://github.com/hpreston @CiscoDevNet facebook.com/ciscodevnet/ http://github.com/CiscoDevNet Hank Preston developer.cisco.com
Why Automate the Network?