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OpenDaylight Openflow & OVSDB use cases ODL summit 2016
- 1. OpenDaylight OpenFlow & OVSDB Projects & Use Cases Abhijit Kumbhare, OpenFlow Project Lead & OpenDaylight TSC Member, Ericsson Anil Vishnoi, OVSDB Project Lead & OpenDaylight TSC Member, Brocade 1
- 2. • OpenFlow Plugin Project • OVSDB Project • OpenDaylight Use Cases • References Agenda 2
- 3. • OpenFlow Plugin Project • Project Overview • New in Boron • Future Direction • OVSDB Project • OpenDaylight Use Cases • References Agenda 3
- 4. • One of the first community projects started in Hydrogen release • Past & Present Participants from Brocade, Cisco, Ericsson, HP, IBM, Inocybe, Intel, Pantheon, Red Hat, TCS, etc. • Number of contributors: 97 • Plus contributions in other forms - CSIT, etc. • Number of commits: ~1750 • Source code : 186 KLoCs • Bugs fixes to-date (resolved/verified and fixed): 493 OpenFlow Plugin Project Overview 4
- 5. Consumers: 20+ ODL projects including NetVirt-VPN, SFC, VTN, GBP, NIC, etc. Offset 1 Project central to OpenDaylight 5
- 6. OF Plugin Consumer Model 6
- 7. • Support for OpenFlow 1.0 and 1.3 versions • Flow programming via config datastore (using REST API) & RPCs • Commercial Grade Robustness • OpenFlow clustering support • Reconciliation: • flow/meter/group provisioning functionality which ensures that switches properly reflect intended controller configurations in wake of HA scenarios like switch-restarts • Batch Flow Programming OpenFlow Plugin Feature List 7
- 8. • Andrej Leitner • Anil Vishnoi • Hema Gopalkrishnan • Jozef Bacigal • Kamal Rameshan • Luis Gomez (Test Contact) • Martin Bobak (Lithium-Beryllium) OpenFlow Plugin Team* • Michal Rehak (till Beryllium) • Miroslav Macko (Tests) • Muthukumaran K • Renato Aguiar • Sanjib Mahapatra (Tests) • Shuva Jyoti Kar • Tomas Slusny • Yi Yang * Major contributors last 2 releases only - many other contributors earlier. 8
- 9. • New design • Adopted as the standard design • Cleaner design for current & future improvements • Performance improvements, deterministic API, better stats collection, etc. • Singleton Clustering • New Clustering Singleton approach in MD-SAL project provides & encapsulates all leadership changes • Now downstream project like OpenFlow do not need to take care of device clustering leadership change, and only uses clustering singleton API to react to leadership change • Improves robustness of the OpenFlow clustering • Blueprint Migration • Improve plugin upgradeability and simpler configuration New in Boron 9
- 10. • Bulk-O-Matic • A test application with REST interface for measuring flow programming performance • Can choose Datastore or RPCs for flow programming perf test • Forwarding Rules Synchronizer • New OFP app for provisioning flows / groups / meters using config DS • Compares differences between DS changes - to send incremental updates only • Includes retry mechanism on failure • Redesign of Forwarding Rules Manager (FRM) • Separate feature not installed by default currently • Various other changes: features cleanup, table features default off, etc. New in Boron (contd) 10
- 11. • Bulk-O-Matic PoC to study Performance Optimization by using OpenFlow Java Library models directly • Current flow programming uses abstracted OpenFlow Plugin models which OpenFlow Java Library translated to either OpenFlow 1.0 or 1.3 models. • PoC to study use of OpenFlow Java 1.3 specific models directly by apps. • Usability improvements for apps - config parameters, flow install confirmation, CLI info commands, stats collection improvements, etc. • Please join DDF session Wednesday 12 pm for Carbon Planning Carbon Thoughts 11
- 12. • OpenFlow Plugin Project • OVSDB Project • OpenDaylight Use Cases • References Agenda 12
- 13. • OVSDB Schema Support (Ovsdb Southbound Plugin) • Hardware VTEP Schema Support (HwVtep Southbound Plugin) • Library for en/de - coding OVSDB json-rpc messages • Both the plugins support clustering • Ovsdb Southbound plugin supports - Config reconciliation • Config reconciliation is partially supported is on the list for Hardware VTEP. • Both the plugin can be parallelly loaded in Controller • Looking for more details? – Summit Talk : http://sched.co/7Rqj – Wiki : https://wiki.opendaylight.org/view/OVSDB_Integration:Main OVSDB Project : Overview OVSDB Library MD-SAL Data Store OVSDB SB Plugin OVSDB Server Listen CRUD Notification Transact Applications 13
- 14. • OpenFlow Plugin Project • OVSDB Project • OpenDaylight Use Cases • NetVirt + VPN Service • VTN • Other Examples • References Agenda 14
- 15. Virtual Or Physical Host OpenFlow & OVSDB Plugin General Usage Model by Network Virtualization Applications OVSDB Library MD-SAL Data Store OVSDB SB Plugin OVSDB Server Listen CRUD Notification Transact Applications OpenFlow Library OpenFlow Plugin OpenFlow vSwitch Notification Transact Listen CRUD 15
- 16. Virtual Or Physical Host OpenFlow & OVSDB Plugin General Usage Control Flow by Network Virtualization Applications OVSDB Library MD-SAL Data Store OVSDB SB Plugin OVSDB Server Listen CRUD Notification Transact Applications OpenFlow Library OpenFlow Plugin OpenFlow vSwitch Notification Transact Listen CRUD 16
- 17. Components: ODL OpenFlow+OVSDB Use Cases Controller SAL/Core Open_vSwitch OpenStack OpenFlow 1.0/1.3 OVSDB OF Java OF Plugin RESTCONF Neutron Apps Data Neutron Topology OF Inventory/Topology OVSDB Plugin OVSDB Topology External Apps ODL OpenFlow-OVSDB Apps OVSDB OF SwitchOF Switch Open_vSwitch OVSDB OF SwitchOF Switch 17
- 18. OpenFlow Plugin Services consumed by NetVirt: ● OpenFlow node connectivity ● Flow Installation, modification & removal ● Nicira extensions ● Packet-in NetVirt (+ VPN Service) Project 18
- 19. • Provide API’s to create Service Function Chain and flow classifiers. • Support multiple devices -- OVS, VPP, NetConf etc • Rendered are developed for each type of device • SFC configuration requires • Vxgpe termination point creation • Flows on the OpenFlow bridges to steer traffic • OVS renderer create Bridge/Termination point (e.g vxgpe port) on OVS device using OVSDB plugin to configure chain. • OpenFlow renderer installs the flows using OpenFlow plugin to route the traffic • SFC extensively uses OpenFlow plugin’s nicira extensions. Service Function Chaining 19
- 20. • Network Virtualization Project in ODL that supports • Multi Tenant Virtualization implementation on Openflow switches • Fault Tolerant • Supports Openstack Integration • Supports operating in a Cluster also • Other Details • Available in Opendaylight since Hydrogen release Virtual Tenant Network (VTN) 20
- 21. • VTN is a logical abstraction plane which enables complete separation of logical plane from physical plane • Users can define a logical network topology without knowing the physical network topology • Once logical network designed - VTN will map it to underlying physical network & push the network rules on the switches using OpenFlow • Advantages • Hide the complexity of the underlying network from the tenant administrator • Better manage network resources • Minimize network config errors Key Idea 21
- 22. VTN: Components and Dependencies Controller SAL/Core OF Switch OpenStack OpenFlow 1.0/1.3 OVSDB Data Change Notification Data Store Read/Write RPCs/Notifications OF Java OF Plugin RESTCONF Neutron VTN Manager Virtual Routing Table Neutron Mapper Mapping Resolver Virtual Tenant Network vBridge Mapping Rules Path Map Flow Filter Neutron Topology OF Inventory/Topology OVSDB Plugin OVSDB OVSDB Topology VTN Coordinator Apps 22
- 23. • VTN extensively uses • Openflowplugin events related to the network (especially inventory related, flow entry removal, packet in received from switch) and handle the changes. • Use OpenFlow Plugin RPC to Install/Update/Remove Flow entries • Use OpenFlow Plugin RPC to Get statistics of Openflow ports Note: VTN is a reactive implementation that computes flow entries based on the VTN model created by user and the packet received from switch. VTN Dependency on OpenFlow Plugin 23
- 24. • OpenFlow Plugin Project • OVSDB Project • OpenDaylight Use Cases • References Agenda 24
- 25. • OpenFlow Plugin Project: • Project Wiki • IRC channel: #opendaylight-openflowplugin • Project Lead Contact Info: Abhijit Kumbhare <[email protected]> (email), #abhijitkumbhare (IRC handle) • Weekly Meeting: Thursdays from 08:00-9:00 am PST/PDT | 11:00-12:00 EST/EDT | 15:00-16:00 UTC during Daylight Time/16:00-17:00 UTC during Standard Time • Boron Documentation: • User Guide • Developer Guide • Spec: • OpenFlow 1.3.2 • OpenFlow 1.0.0 References 25
- 26. • OVSDB Project: • Project Wiki • IRC channel: #opendaylight-openflowplugin • Project Lead Contact Info: Anil Vishnoi <[email protected]> (email), #vishnoianil or #avishnoi (IRC handle) • Weekly Meeting: Tuesday from 10:00-11:00a PST/PDT | 13:00-14:00 EST/EDT | 17:00-18:00 UTC during Daylight Time/18:00-19:00 UTC during Standard Time • Boron Documentation: • User Guide • Developer Guide • Spec: • RFC 7047 - The Open vSwitch Database Management Protocol References (contd) 26