OpenDaylight as a Platform for Network Programmability FOSDEM, 3 February Charles Eckel, Cisco DevNet

Transcription

1 OpenDaylight as a Platform for Network Programmability FOSDEM, 3 February 2018 Charles Eckel, Cisco DevNet eckelcu@cisco.com

2 Agenda What is SDN What is OpenDaylight Network programmability Installation Example use case (VPP) Conclusions OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 2

3 What is SDN OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 3

4 Software Defined Networking (SDN) Control & Data Planes separation? OpenFlow? Logically centralized control Plane? White label switches? This a valid & useful SDN use case, but... SDN can be defined more broadly: Network is a source of vast amount of data.....that can be utilized by variety of SDN applications True power of SDN is network programmability OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 4

5 OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 5

6 What Do We Need from an SDN Controller? A platform for deploying SDN applications Provide an SDN application development environment Developer-friendly APIs to network elements (REST/JSON, pub/sub, etc.) Network-level abstraction through topologies Protocol independence for network-facing applications OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 7

7 What is OpenDaylight OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 8

8 Graphical User Interface Application and Toolkit (DLUX / NeXT UI) AAA AuthN Filter OpenDaylight APIs REST/RESTCONF/NETCONF/AMQP Northbound APIs to Orchestrators and Applications Base Network Functions Host Tracker L2 Switch Enhanced Network Services AAA Messaging 4Transport SNMP4SDN Centinel Streaming Data Hdlr NetIDE Time Series Data Repository Controller Shield Neutron Northbound Unified Secure Channel Mgr Network Abstractions ALTO (Policy/Intent) Protocol Manager Fabric as a Service Group Based Policy Service Controller Platform Services/Applications OpenFlow Forwarding Rules Mgr Dev Discovery, ID & Drvr Mgmt OVSDB Neutron User Network Interface Mgr NEMO OpenFlow Stats Manager DOCSIS Abstraction SDN Integration Aggregator Virtual Private Network Network Intent Composition OpenFlow Switch Manager Link Aggregation Ctl Protocol Service Function Chaining Virtual Tenant Network Mgr. Topology Processing LISP Service Data Store (Config & Operational) Service Abstraction Layer/Core Messaging (Notifications / RPCs) OpenFlow OF-Config OVSDB NETCONF LISP BGP PCEP CAPWAP OPFLEX SXP SNMP USC SNBI IoT Http/CoAP LACP PCMM /COPS Southbound Interfaces & Protocol Plugins OpenFlow Enabled Devices Open vswitches Additional Virtual & Physical Devices Data Plane Elements (Virtual Switches, Physical Device Interfaces) OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 9

9 Software Architecture Java - enterprise-grade, cross-platform compatible language Java Interfaces - for event listening, specifications and forming patterns Maven build system Karaf based on OSGi, provides: dynamic loading of bundles registering dependencies and services exported exchanging information across bundles Feature A Feature B Karaf Feature X OSGi Framework (Equinox) MD- SAL OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 11

10 Network programmability OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 12

11 The Need for Something Better SNMP had failed For configuration, that is Extensive use in fault handling and monitoring CLI scripting Market share 70%+ configuration RFC 3535 Abstract This document provides an overview of a workshop held by the Internet Architecture Board (IAB) on Network Management. The workshop was hosted by CNRI in Reston, VA, USA from June 4 thru June 6, The goal of the workshop was to continue the important dialog started between network operators and protocol developers, and to guide the IETFs focus on future work regarding network management. OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 14

12 Best Practices Coming Together OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 15

13 YANG Data Modeling Language for Networking Modeling language, defined in RFC 6020 Represents operational state, configuration, transactions, and notifications Defines semantics Constraints (i.e. MUSTs ) Reusable structures Built-in and derived types Protocol Data Model In Summary: YANG is a full, formal contract language with rich syntax and semantics for network data OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 17

14 YANG Model Example Screenshot from ietf-interfaces.yang Container 'interfaces' with list of 'interface' items List items (leafs) have a 'name' which is also the key for the list OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 19

15 Tools to work with YANG Models pyang - An extensible YANG validator and converter in python Source Code - Python Package - YANG Explorer - YANG Browser / RPC Builder OpenDaylight YANG Tools Tools supporting NETCONF and YANG, code generation from YANG models OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 20

16 Building a Plugin/Application Model Model YANG Model Generate APIs 1 YANG Tools Java API Definition Java Generated API Definition API Definition Maven Build Tools Create API Bundle 2 API OSGI Bundle Deploy 4 Module Implementations Module Plugin Implementations source code Maven Build Tools Plugin OSGI Bundle 3 Create Plugin Bundle 4 Deploy OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 23

17 High Level Manageability Architecture Application Transport Network Device ANY (C, Java, Python) YANG-based XML Manageability Infra BGP NETCONF client NETCONF server ANY (Java, Python, Perl, PHP) SSH / TLS YANG-based XML/JSON Config DB QoS RESTCONF client HTTPS RESTCONF server VXLAN OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 31

18 Mounting YANG Datastores OpenDaylight NETCONF Node Discovery Nodes added by POSTing to config:modules OpenDaylight connects to each node OpenDaylight learns capabilities (YANG modules) and stores to cache Cache at ~/cache/schema. Filenames of form Node Inventory RESTCONF Model Cache MD-SAL NETCONF VPP1 VPP2 OpenWrt OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 32

19 Installation OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 33

20 Distributions OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 34

21 $ unzip karaf zip Archive: karaf zip creating: karaf-0.7.1/system/ $ cd karaf $./bin/karaf karaf: Enabling Java debug options: -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 Listening for transport dt_socket at address: 5005 Apache Karaf starting up. Press Enter to open the shell now % [========================================================================] Karaf started in 0s. Bundle stats: 10 active, 10 total... \ \ \ \.. / _ / \\ \_/ \ / \ \\ \< / \ \ \ / \ _> > / \ ` \/ \\ _ / /_/ > Y \ \ / / \ > / ( / / \ / / \/ \/ \/ \/ \/\/ / / \/ Hit '<tab>' for a list of available commands and '[cmd] --help' for help on a specific command. Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown OpenDaylight. opendaylight-user@root> OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 35

22 Install Features using Karaf OpenDaylight distro comes without any features enabled by default All features are available for you to install feature:list list all features available feature:list -i list all features installed feature:list r list all features required feature:install <feature> install the <feature> feature feature:install <feature-1> <feature-2> <feature-n> install list of features feature:uninstall <feature> uninstalls the <feature> feature OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 36

23 Install DLUX, NETCONF, and RESTCONF feature:install odl-dlux-core feature:install odl-dluxapps-yangui feature:install odl-restconf-all feature:install odl-netconf-all feature:install odl-netconf-topology feature:install odl-netconf-connector-ssh feature:list -r Name Version Required State odl-netconf-topology x Started odl-restconf-all x Started odl-netconf-connector-ssh x Started odl-dluxapps-yangui x Started odl-netconf-all x Started odl-dlux-core x Started wrap x Started standard x Started DEVNET Cisco and/or its affiliates. All rights reserved. Cisco Public 37

24 Honeycomb/VPP using NETCONF VPP is a high-performance, open source, software forwarder Honeycomb provides NETCONF and RESTCONF interfaces to VPP Host RESTCONF RESTCONF Honeycomb NETCONF NETCONF VM1 low level API VM2 VM3 VPP OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 41

25 Honeycomb/VPP Using NETCONF Step by Step 1. Create VM for Honeycomb and VPP Postman RESTCONF 2. Install VPP and Honeycomb on VM 3. Start VPP and Honeycomb NETCONF 4. Connect to VPP using CLI 5. Add interface(s) to VPP 6. Connect to VPP using Honeycomb/NETCONF Host VM1 VM2 RESTCONF Honeycomb NETCONF low level API 7. Connect to VPP using OpenDaylight VM3 VPP OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 48

26 Honeycomb/VPP Using NETCONF 7. Connect to VPP Using OpenDaylight Enable NETCONF interface on OpenDaylight feature:install odl-restconf-all odl-netconf-all odlnetconf-topology odl-netconf-connector-ssh Add VPP to OpenDaylight using Postman PUT Postman collection Host Post man VM1 VM2 VM3 RESTCONF RESTCONF NETCONF NETCONF Honeycomb VPP low level API Interact with VPP using OpenDaylight DLUX OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 55

27 OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 56

28 OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 57

29 OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 58

30 Conclusions OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 59

31 Key Takeaways SDN is more than just OpenFlow Network programmability is key benefit of SDN OpenDaylight provides a platform for network applications and programmable network infrastructure via YANG, NETCONF, RESTCONF OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 60

32 Additional resources OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 61

33 Open Source Dev Center Your Source for Open Source at Cisco Contributions to open source Use in products/solutions Community forums, blogs Developer Events IETF Hackathons and MEF LSO Hackathons featuring open source implementations of open standards OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 62

34 OpenDaylight Microsite OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 63

35 OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 64

36 Tutorials and Sandboxes OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 65

37 ndaylight OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 66

38 Continue Your Education Become a DevNet Member: Access OpenDaylight resources Visit our Open Source Dev Center: OpenDaylight as a Platform for Network Programmability 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 67

39 Thank you!