ONOS Overview

OPNFV Design SummitNovember 9, 2015

Brian O'ConnorOpen Networking Lab

What is ONOS?

Open Network Operating System (ONOS) is an open source SDN network operating system. Our mission is to enable Service Providers to build real SDN/NFV Solutions.

ONOS Framework (ONOSFW) is the OPNFV project focused on ONOS integration. It is targeted for inclusion in the Brahmaputra release.

ONOS Ecosystem

ON.LAB SERVICE PROVIDER PARTNERS

COLLABORATORSVENDORPARTNERS

COMMUNITY

Quarterly Releases● Avocet (1.0.0) released in December 2014

○ Initial release of clean & modular code-base, protocol independence

● Blackbird (1.1.0) released in March 2015○ Improved performance, scale-out, increased robustness

● Cardinal (1.2.0) released in June 2015○ New use-cases, additional core features, additional SB protocols

● Drake (1.3.0) released in September 2015○ Platform enhancements, security features, UI enhancements

● Emu (1.4.0) - currently in progress for December 2015○ Dynamic cluster scaling, Virtual Network and CORD features

Architectural Tenets● High-availability, scalability and performance

○ required to sustain demands of service provider & enterprise networks

● Strong abstractions and simplicity○ required for development of apps and solutions

● Protocol and device behaviour independence○ avoid contouring and deformation due to protocol specifics

● Separation of concerns and modularity○ allow tailoring and customization without speciating the code-base

Distributed Architecture

NB Core API

Distributed Core(state management, notifications, high-availability & scale-out)

SB Core API

Protocols

Providers

Protocols

Providers

Protocols

Providers

Protocols

Providers

AppsApps

Distributed Architecture

NB Core API

Distributed Core(state management, notifications, high-availability & scale-out)

SB Core API

Protocols

Providers

Protocols

Providers

Protocols

Providers

Protocols

Providers

AppsApps

Distributed Core(state management, notifications, high-availability & scale-out)

SB Core API

NB Core API

Providers Providers Providers Providers

Protocols Protocols Protocols Protocols

Core Subsystems

Device Link Host

Topology

Flow Rule

Path

Packet

StatisticsIntent

Application

Leadership

Messaging

Storage Region

Mastership

Driver

Group

Security

Flow Objective

Event

OpenFlow NetConf OVSDB

Core Cluster

. . .

Proxy ARPMobility L2 Forwarding

REST API GUI CLI

Network Cfg.

SDN IP / BGP Packet / Optical

Tunnel

. . .

OSGi / Apache Karaf

Network Virt.Device Cfg.

Config

UI Extension

External Apps

Graph

Discovery Tenant . . .

Key Northbound Abstractions● Network Graph

○ Directed, cyclic graph comprising of infrastructure devices, infrastructure links and end-station hosts

● Flow Objective○ Device-centric abstraction for programming data-plane flows in table

pipeline-independent manner

● Intent○ Network-centric abstraction for programming data-plane in topology-

independent manner

Device Protocol SupportIncluded- OpenFlow

- 1.0, 1.3+, driver-based pipeline support via Flow Objectives- OVSDB- NetConf- PCEP- TL1 (available from select vendors)

Under development- BGP-LS- SNMP (v2c)

Approaches to Virtualization1. Overlay (implemented)● OpenStack/Nicira-style virtualization● Collection of ports with L2/L3/etc. connectivity● No topology

2. Hypervisor (in progress)● OpenVirtex-style virtualization● Virtual topology elements (devices, ports, links)● No implied connectivity

Overlay Virtualization

OVS (br-int)

Service VM (FW) VM

Compute Node

OVS (br-int)

VMVM

Compute Node

OVS (br-int)

VMVM

Compute Node

Neutron

ML2 Plugin L3 Plugin

Nova

OVSDB OF1.3

SFC Manager

Neutron API

SFC Plugin

VTN Manager

Distributed VTN store

VTN

Overlay Net Topology

Device (OVS) Host (VM) Link

(VxLAN) Flow Rule

Tunnel Packet Stats Master

OVS (br-int)

DHCP

Network Node

DHCP

VxLAN VxLAN

Tunnel Port

IngressSF Port

CORE

Provider

Egress SF Port

- Single Bridge (“br-int”) per node- OF-based L3 Forwarding- ARP proxy on each compute node

- Physical and Overlay Network- Flow Rule management- Full Mesh Overlay network with two variants: 1. create a full mesh of tunnel ports 2. Create one tunnel port per compute node

- VTN is a multi-bundle Application- Distributed VTN Store build using ONOS primitives

Port

External Port

Join the journey @ onosproject.org

Software Defined Transformation of Service Provider Networks