OpenStack and OpenDaylight: An Integrated IaaS for SDN/NFV

OpenStack and OpenDaylight:
An Integrated IaaS for SDN/NFV
Nir Yechiel
Senior Product Manager, Red Hat OpenStack Platform
March 2017

OPENSTACK AND OPENDAYLIGHT INTEGRATION2
About Me
● OpenStack Community Member
● Working with customers deploying OpenStack in production
● Background in core IP routing/MPLS
● Focused on Neutron, SDN and NFV
nyechiel@redhat.com
@nyechiel
thenetworkway.wordpress.com

Agenda
● Background: OpenStack, Neutron, and OpenDaylight
● Why OpenDaylight?
● OpenStack and OpenDaylight
● Further Reading

What is OpenStack?
● Fully open-source cloud “operating system”
● Comprised of several open source sub-projects
● Provides building blocks to create an IaaS cloud
● Governed by the vendor agnostic OpenStack Foundation
● Enormous market momentum
Overview

What is OpenStack?
Context - OpenStack Service
REST API
Backend-specific orchestration
Backend-specific host technology

What is OpenStack?
Red Hat OpenStack Platform
IaaS+
IaaS
TELEMETRY ORCHESTRATION
CEILOMETER SAHARA HEAT
DATA
PROCESSING
COMPUTE
NOVA
NETWORKING
NEUTRON IRONICCINDER GLANCE SWIFT
STORAGE
BLOCK IMAGE OBJECT
BARE-METAL
PROVISIONING
HORIZON TRIPLEO
DASHBOARD
SHARED SERVICES
IDENTITY
KEYSTONE
DIRECTOR
DEPLOYMENT
and
MANAGEMENT
MANILA
SHARED
FILESYSTEM

What is OpenStack Neutron?
● Fully supported and integrated OpenStack project
● Exposes an API for defining network configuration for applications
● Based on a pluggable architecture
● Offers multi-tenancy with self-service
○ Provides operators and tenants with the ability to create rich network topologies
Overview

● L2 connectivity
● IP Address Management
● Security Groups
● East/West L3 routing
● External gateway, NAT and floating IPs
● IPv6 support
● QoS
● Load balancing, VPN and firewall
Key API Capabilities

Upstream “Reference Implementation”
neutron-server
ML2/OVS driver
Neutron agents
(OVS, L3, DHCP, Metadata)
Open vSwitch
REST API
Orchestration layer
(Translate Neutron config into
configuration of a network across a
deployment)
Per-host programmable vSwitch
(Controlled by the orchestration layer)

What is OpenDaylight?
● OpenDaylight is an open source project under the Linux Foundation with the goal of
furthering the adoption and innovation of SDN through the creation of a common industry
supported platform
Overview

What is OpenDaylight?
● OpenDaylight is a modular, extensible, and multi-protocol controller infrastructure built for
SDN deployments on modern multi-vendor networks
● Provides a model-driven service abstraction platform that allows users to write applications
that easily work across a wide variety of hardware and southbound protocols
● Composed of a number of different projects that can be combined as needed to meet the
requirements of a given scenario
Overview (cont.)

OpenDaylight Projects
● The fast innovation and the large number of projects under OpenDaylight poses a real
challenge for users to choose what functionality they need
● The first Hydrogen release was distributed by packaging projects in customer-specific
editions: “base”, “virtualization”, and “service provider”
● After the Hydrogen release, the community have worked on porting OpenDaylight to Apache
Karaf - which allows the user to customize OpenDaylight to his needs by loading the
necessary projects (modules) that are required for his use-case

Core Architecture
Controller Platform
Model Driven Service Abstraction Layer (MD-SAL)
Southbound Interfaces and Plugins
Data Plane Elements
Network Applications, Services and Orchestration
OpenDaylight API (REST)

OpenDaylight Boron
Source: https://www.opendaylight.org/odlboron

Why OpenDaylight?
True SDN Platform Standard-based,
Open Approach
Interacting with the
Physical Fabric
Enhanced Cloud
Networking
SDN for NFVi

True SDN Platform
● Modular and extensible
● Multi-protocol
● Large community and ecosystem
● Ready for future innovation

Standard-based, Open Approach
● Open APIs
● Standard interfaces and protocols
● Full “reference stack”
● Avoid vendor lock-in

Interacting with the Physical Fabric
● Topology discovery
● Network automation
● Overlay/underlay correlation
● Monitoring and troubleshooting

Enhanced Cloud Networking
● Network virtualization
● Multi tenancy
● Security and isolation
● L4-L7 network services

SDN for NFVi
● Rich datapth connectivity options
● Service Function Chaining (SFC)
● Service Provider applications

OpenDaylight with OpenStack
● Neutron support for OpenStack is far from being the only use-case for OpenDaylight
○ It is, however, a key use-case and Red Hat’s main focus
● OpenDaylight exposes a common OpenStack Service Northbound
○ API matches Neutron REST precisely
○ Multiple implementations of Neutron providers exist in OpenDaylight
■ We focus on NetVirt*
● Key fundamental facts about the NetVirt integration:
○ Neutron is where the OpenStack networking API is being defined
○ OpenDaylight consumes the Neutron API rather than replace or change it
○ Open vSwitch is used on the hosts. Communication is done via its native interfaces
(OVSDB, OpenFlow)
*https://wiki.opendaylight.org/view/NetVirt

OpenDaylight with OpenStack
Using NetVirt
neutron-server
ML2/ODL driver (networking-odl)
OpenDaylight (NetVirt)
Open vSwitch (OVS)
OVS-DPDK
L2 GW
VPP
REST API
Orchestration layer
(Translate Neutron config into
configuration of a network across a
deployment)
Per-host programmable vSwitch
(Controlled by the orchestration layer)

NetVirt
● NetVirt is a Network Virtualization application developed on OpenDaylight consisting of
modular sub-services such as L2, L3, ACL, NAT, DHCP, IPv6 control, and more
● Supports the Neutron API via the networking-odl Neutron plugin/drivers
● Currently controls OVS virtual switches and Layer 2 gateways
● In future will support:
○ VPP virtual switches
○ CNI plugin for Kubernetes
Overview

NetVirt and VPNService Integration
● It became apparent that the VPNService* had it’s own version of NetVirt
● During the Boron cycle the two projects joined efforts so that:
○ NetVirt became the main Network Virtualization engine of OpenDaylight
○ NetVirt is more feature rich
○ The two projects are now using the same common service pipeline defined in NetVirt
○ The two projects leverage code, test, and developer resources
● This shows strong upstream convergence around NetVirt
● As a result, NetVirt’s implementation has changed but that should be agnostic to the end user
Upstream Boron release
*https://wiki.opendaylight.org/view/VPNService:Main

Red Hat Package*
*Technology Preview with Red Hat OpenStack Platform

Further Reading
● NetVirt
○ Upstream Wiki
● Red Hat OpenStack Platform
○ Product Documentation
● Red Hat and OpenDaylight
○ SDN with Red Hat OpenStack Platform: OpenDaylight Integration
○ OpenDaylight Product Guide
○ OpenDaylight Installation and Configuration Guide
● Red Hat NFV, SR-IOV and OVS-DPDK Guides
○ Product Guide
○ Planning Guide
○ Configuration Guide

THANK YOU
plus.google.com/+RedHat
linkedin.com/company/red-hat
youtube.com/user/RedHatVideos
facebook.com/redhatinc
twitter.com/RedHatNews

OpenStack and OpenDaylight: An Integrated IaaS for SDN/NFV

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