Innovation in SDN Tools and Platforms

Innovation in SDN
Tools and Platforms
Umesh Krishnaswamy
umesh@onlab.us
1

Exponential Interest
Jul 2012 Oct 2012 Nov 2012 Dec 2012 Feb 2013
ACQUISITIONS
Oct 2011 Apr 2013
EVENTS
400
Attendees
MARKET
Feb 2012 Feb 2013
$2
$3.7
Billions
May 2012 Dec 2012
STANDARDIZATION
51
90
Members
400
1500

More Products Announced
And Available
More Start-Ups and VC investment too!

Problem with Internet Infrastructure
Tens of Millions of lines of code
Closed, proprietary, outdated
Hundreds of protocols
6,500 RFCs
Billions of gates
Power hungry and bloated
Vertically integrated, complex, closed, proprietary
Not good for network owners and users

Problem: No Abstraction for Control
Plane
Adding new feature or service highly complex
Network too difficult to program, operate or troubleshoot
Router/Switch/Appliance
Distributed
Network
Functions
State Distribution
Mechanism

Problem: How to Support Virtual
Infrastructure on Demand
Everyone needs their own infrastructure on demand
VM
VM
VM
VM
How to support dynamic virtual infrastructure on physical networks
that are not programmable

Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Software Defined Network (SDN):
Fundamental Elements
Control plane physically separate from data plane
Single control plane controls several forwarding
devices

Global Network View
Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Packet
Forwarding
Abstract Network View
Control
Programs
Control
Programs
Control
Programs
Software Defined Network (SDN):
Virtualization

Openflow @ Google
Urs Hölzle, SVP, Google at ONS 2012
 Openflow is ready for real-world use
 SDN is ready for real-world use
 Enables rapid rich feature development
 Simplifies network management
 Google’s datacenter WAN successfully
runs on Openflow
 Largest production network at Google
 Improved manageability
 Improved cost (too early to have exact
numbers)
Google’s Openflow WAN Conclusions

SDN in Public Cloud: Windows Azure
 Windows Azure supports virtual
networks, rich load balancing, tenant
ACLs, and more – for hundreds of
thousands of servers, via software
 No Hardware per tenant ACLs
 No Hardware NAT
 No Hardware VPN / overlay
 No Vendor-specific control, management
or data plane
 All policy is in software – and
everything’s a VM!
 Network services deployed like all other
services
We bet our infrastructure on
SDN, and it paid off
Albert Greenberg, Microsoft at ONS 2013
Southbound API
Azure Frontend
(VM)
Controller
(VM)
Northbound API
Red VM
Gateway
VM
VMSwitch
Load
Balancer
(VM)
Agility and Scale

Openflow/SDN Activities of NTT
Communications
 Done: Enterprise Cloud with
Openflow/SDN. Advantages:
 Integrated provisioning for cloud and
network
 Easy and topology-free design
 4K VLAN limitation overcome using
Openflow technology
 Doing: Automated VPN connection
from customer portal
 Will do: Expand to all layers of network
 Aggressively working on SDN controller
development to realize use cases
Yukio Ito, SVP, NTT Communications at ONS 2013
Activities
Come with us to change the world!!

Nippon Express Use Case of SDN
 Limited network and virtualization
flexibility
 Need a new paradigm in
networking to reduce service
delivery time and cost reduction
 Message from customer: Although
this was a big challenge for us, we
are happy that we believed in the
potential of ProgrammableFlow
Nippon Express Benefits from ProgrammableFlow
Kaoro Yano, Chairman, NEC at ONS 2012

Early SDN Activities
Platform
Development
2007 – Ethane
2008 – OpenFlow
2009 –
FlowVisor, Mininet,
NOX
2010 – Beacon
2009 – Stanford
2010 – GENI started
and grew to 20
universities
2013 – 20 more
campuses to be
added
Deployments
Demonstrations
2008-2011 – SIGCOMM
2011 – Open
Networking
Summit, Interop
2012 –Define
SDN research
agenda for the
coming years
And Beyond
Invention
2007 – Creation
of SDN Concept

ON.LAB Role
IDEAS BROADER
ADOPTION
Early stage ideas
and prototypes
from the research
community
Leveraged by
organizations and
users for commercial
usage
Development
Distribution
Deployment
Support
Demonstrations
Proven applicability by
the ON.LAB community
OUR VISION
Open The Cloud Infrastructure For
Innovation
OUR MISSION
Develop, distribute, deploy, and support open source
Software-Defined Networking (SDN) tools and platforms

Sponsors
Chip vendors Equipment vendors Software vendorsVendors
UsersResearch
Computer science
R&E community
Service providers Cloud providers
R&E network operators

Scalability
Reliability
Debuggability
Flow Space
Network Map
Virtual Network
Logical Crossbar
Systems
Abstraction
Capabilities
OF
Switch
OF
Switch
OF
Switch
OF
SwitchOpenRadio
ONRC Research Agenda
Virtue
VM
Placement
Optimized
OF Switch
Open
Radio
STSNetwork
OS
Hassel NetSight
(SDN Troubleshooting)

ON.LAB Tools and Platforms
3rd party
components
Network OS
Apps Apps
Network OS
Apps Apps
Open Interfaces
Open Interfaces
Network Hypervisor
Forwarding
FlowVisor
Mininet
ONOS
SDN-IP Peering
TestON

Tools and Platforms
3rd party
components
Network OS
Apps Apps
Network OS
Apps Apps
Open Interfaces
Open Interfaces
Network Hypervisor
Forwarding
FlowVisor
MININET
ONOS
SDN-IP Peering
TestON

Mininet At A Glance
 Build a realistic Openflow network on your laptop or EC2
 1.0 – realistic behavior, functional emulation
 2.0 – performance emulation via link and CPU bandwidth limits
CONVENIENT REALISTIC EMULATOR FOR SDN
Ubuntu, Github
27k downloads
Reproducing network research
Start-ups, SEs, bloggers, 6 courses
Mailing list - 601 members, 184
domains
Extensive documentation
Demonstrations Support
Usage
More information at mininet.org
Distribution
ONS, SIGCOMM, Interop to
demonstrate SDN capabilities

Tools and Platforms
3rd party
components
Network OS
Apps Apps
Network OS
Apps Apps
Open Interfaces
Open Interfaces
Network Hypervisor
Forwarding Mininet
ONOS
SDN-IP Peering
FLOWVISOR
TestON

FlowVisor At A Glance
FlowVisor creates network slices with data path and control isolation per slice
Not full network virtualization (more on that later)
NETWORK HYPERVISOR FOR OPENFLOW SWITCHES
More information at github.com/OPENNETWORKINGLAB/flowvisor
Github, Debian/Ubuntu, Red Hat/CentOS
900 downloads per quarter
Stanford production network
GENI – Multi-tenancy
NEC & Ericsson research labs
3 releases per year (Release 1.2.0 in May)
OpenFlow discussion forum
Demonstrations Support
Usage Distribution
Best demo at SIGCOMM’09
GENI GEC9 in 2010
ONS 2012

GENI with ON.LAB
Use Case for Mininet & FlowVisor
o Prototype/debug application on Mininet emulating real network
o Use FlowVisor to run multiple experiments simultaneously
o Change slice definition in FlowVisor to switch from Mininet to real network
NOX Beacon Floodlight Trema POX
FlowVisor
Physical
Network
e.g. GENI
Mininet
Emulated
Network
on PC

Tools and Platforms
3rd party
components
Network OS
Apps Apps
Network OS
Apps Apps
Open Interfaces
Open Interfaces
Network Hypervisor
Forwarding Mininet
FlowVisor
SDN-IP Peering
TestON
ONOS
Open Network Operating
System

Motivation for ONOS
Distributed Network OS
Community needs an open source distributed SDN OS
Approaches: distributed, hierarchical, federated
Related work: ONIX, Midokura, Helios, Maestro, Hyperflow, Kandoo

ONOS High Level Architecture
Host
Host
Host
Titan Graph DB
Cassandra In-Memory DHT
Instance 1 Instance 2 Instance 3
Network Graph
Eventually consistent
Distributed Registry
Strongly Consistent Zookeeper
ONOS
core
Floodlight
ONOS
core
Floodlight
ONOS
core
Floodlight

ONOS Network Graph Abstraction
Cassandra
In-memory DHT
Id: 1
A
Id: 101, Label
Id: 103, Label
Id: 2
C
Id: 3
B
Id: 102, Label
Id: 104, Label
Id: 106, Label
Id: 105, Label
Network Graph
Titan Graph DB

Network Graph and Switches
Switch Manager Switch ManagerSwitch Manager
Network Graph: Switches
OF
OF
OF
OF
OF
OF

Network Graph and Link Discovery
SM
Network Graph: Links
SM SM
Link Discovery Link Discovery Link Discovery
LLDP LLDP

Devices and Network Graph
Network Graph: Devices
SM SM SMLD LD LD
Device Manager Device Manager Device Manager
PKTIN
PKTIN
PKTIN
Host
Host
Host

Path Computation with Network Graph
SM SM SMLD LD LD
Host
Host
Host
DM DM DM
Path Computation Path Computation Path Computation
Network Graph: Flow Paths
Flow 1
Flow 4
Flow 7
Flow 2
Flow 5
Flow 3
Flow 6
Flow 8
Flow entriesFlow entriesFlow entries

Network Graph and Flow Manager
SM SM SMLD LD LD
Host
Host
Host
DM DM DM
Flow Manager
Network Graph: Flows
PC PC PC
Flow Manager Flow ManagerFlowmod Flowmod
Flowmod
Flow 1
Flow 4
Flow 7
Flow 2
Flow 5
Flow 3
Flow 6
Flow 8

Distributed Registry: Master Election
SM SM SMLD LD LD
Host
Host
Host
DM DM DM
Network Graph
FM FM FM
Distributed
Registry
A
B
C
D
E
F
Flow 1
Flow 4
Flow 7
Flow 2
Flow 5
Flow 3
Flow 6
Flow 8
Master Election A: ONOS 1 C: ONOS 2 E: ONOS 3
B: ONOS 1 D: ONOS 2 F: ONOS 3
ONOS Instance 1 ONOS Instance 2 ONOS Instance 3

Distributed Registry: Instance Failover
SM SM SMLD LD LD
Host
Host
Host
DM DM DM
Network Graph
FM FM FM
Distributed
Registry
A
B
C
D
E
F
ONOS Instance 1 ONOS Instance 2 ONOS Instance 3
Flow 1
Flow 4
Flow 7
Flow 2
Flow 5
Flow 3
Flow 6
Flow 8

SM SMLD LD
Host
Host
Host
DM DM
Network Graph
FM FM
Distributed
Registry
A
B
C
D
E
F
Master Election A: C: ONOS 2 E: ONOS 3
B: D: ONOS 2 F: ONOS 3
ONOS Instance 2 ONOS Instance 3
Flow 1
Flow 4
Flow 7
Flow 2
Flow 5
Flow 3
Flow 6
Flow 8

SM SMLD LD
Host
Host
Host
DM DM
Network Graph
FM FM
Distributed
Registry
A
B
C
D
E
F
ONOS Instance 2 ONOS Instance 3
Flow 1
Flow 4
Flow 7
Flow 2
Flow 5
Flow 3
Flow 6
Flow 8

Video clip of demo from ONS 2013

Tools and Platforms
3rd party
components
Network OS
Apps Apps
Network OS
Apps Apps
Open Interfaces
Open Interfaces
Network Hypervisor
Forwarding Mininet
FlowVisor
ONOS
TestON
SDN-IP Peering

IP
IP
IP
IP
IP
IP
IP
IP
IP
IP
IP
IP
SDNSDN
SDN
How can we seamlessly peer
between SDN and IP networks?

SDNIP
IP
IP
IP
ONOS
BGP
Daemon
RIB RoutingRIB
Sync
BGP routing
updates
IP Routing in SDN

Current Implementation
Proactive Flow
Installer
Prepopulate flows
based on BGP
updates
ZebOS
BGPd
RIB
RIB
pusher
External BGP
peers
Prefix, Nexthop,
Attributes
BGP Route
RIB
RIB
Syncer
ONOS
Path
Computation
Discovery
Openflo
w

Demonstration of SDN-IP on ONOS
192.168.20.1/24
AS4
AS2 172.16.20.1/24
AS3172.16.30.1/24 172.16.40.1/24
172.16.10.1/24
192.168.10.1/24
192.168.30.1/24
192.168.40.1/24
192.168.50.1/24
IPI ZebOS BGPd
Quagga BGPd
SDN AS
emulated
using
Mininet
LAX
CHI
IAH
NYC
ATL
SLC
BGP
ONOS
BGPD
Routing GUI
Host
SDN AS1

TestON
 An open source automation
infrastructure for SDN
 Drag and drop topology
creation
 Pause, debug, and resume
capability
 Implementation:
 Automation harness in Python
 Rich GUI developed in JavaFX
 Plug and play driver library
 What is Next:
 Integrate with network
debugging research from
Berkeley and Stanford

New Projects
Next version of FlowVisor
Generalized network slicing for SDN
Mapping topology, address space, control functions
Performance isolation
NetVisor
ONOS
Reactive flows and low-latency forwarding
Events, callbacks and publish/subscribe API
Expand graph abstraction for more types of network state
ONOS Northbound API and port applications to ONOS
SDN
Trouble-
shooting
NetSight packet history
Interactive network debugger
SDN troubleshooting simulator

Supporting the Community
Software
Releases
Deployments
Build and assist development community
FlowVisor GENI release 5/30, 7/30
ONOS release Q3
SDN-IP release Q3
Support deployments in R&E networks
Internet2
GENI
Stanford
REANZ

Crossing the SDN Chasm
BROADER
ADOPTION
2009 2012
Number of Organizations
Adopting SDN
Time

You are our Community
o Vendor
o Network Operator
o Research Lab
Organizations
Users
Contributors

Please Join Us
Learn Collaborate Contribute
Try out your innovative
ideas with our tools
Improve our tools and
platforms
Stay informed about SDN
Users and contributors
Keep track of latest SDN
research and
innovations
Demonstrate early stage
SDN ideas with ON.LAB
Co-develop platforms
and use cases
Organizations

Innovation in SDN Tools and Platforms

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