ONOS Overview OPNFV Design Summit November 9, 2015 Brian O'Connor - - PowerPoint PPT Presentation

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Sep 10, 2022 390 likes •532 views

ONOS Overview OPNFV Design Summit November 9, 2015 Brian O'Connor Open 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

SLIDE 1

ONOS Overview

OPNFV Design Summit November 9, 2015 Brian O'Connor Open Networking Lab

SLIDE 2

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.

SLIDE 3

ONOS Ecosystem

ON.LAB SERVICE PROVIDER

PARTNERS

COLLABORATORS VENDOR

PARTNERS

COMMUNITY

SLIDE 4

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

SLIDE 5

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

SLIDE 6

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 Apps Apps

SLIDE 7

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 Apps Apps Distributed Core

(state management, notifications, high-availability & scale-out) SB Core API NB Core API

Providers Providers Providers Providers

Protocols Protocols Protocols Protocols

SLIDE 8

Core Subsystems

Device Link Host Topology Flow Rule Path Packet Statistics Intent Application Leadership Messaging Storage Region Mastership Driver Group Security

Flow Objective

Event OpenFlow NetConf OVSDB Core Cluster . . . Proxy ARP Mobility 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 . . .

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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

SLIDE 10

Device Protocol Support

Included

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)

SLIDE 11

Approaches to Virtualization

1. 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

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Overlay Virtualization

OVS (br-int) Service VM (FW) VM

Compute Node

OVS (br-int) VM VM

Compute Node

OVS (br-int) VM VM

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 Ingress SF 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

SLIDE 13

Join the journey @ onosproject.org

Software Defined Transformation of Service Provider Networks