Software Defined Networking

Software Defined Networking
From Blue Sky to Solid Ground
CURT BECKMANN
EMEA CTO and Chair of ONF Forwarding Abstractions WG
BROCADE
30 October 2014
Sequence
• A quick review of SDN
• What has changed for SDN in the past few months
• What to expect in 2015
© Hitachi Data Systems Corporation 2014. All rights reserved.
Definitions of Software Defined Networking
What is a technical definition of SDN?
 “A network where the control and data planes are separated.”
 Misses the main point… because it answers the wrong question
A better question is: Why SDN?
 “An open and interoperable network architecture / market ecosystem that
allows control plane products to be purchased independently of data plane
products.”
 This answer clarifies the need for buyer choice, which will drive
competition and innovation
© Hitachi Data Systems Corporation 2014. All rights reserved.
Early Milestones
OpenStack
OpenFlow
0.2
ONF
founded
Mar 2011
2010
2008
• … What has happened since then?
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OpenFlow Disillusionment
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OpenFlow Disillusionment
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Key Related Topic: Network Functions Virtualisation (NFV)
(http://portal.etsi.org/NFV/NFV_White_Paper.pdf)
Classical Network Appliance Approach
Message Router
CDN
Session Border
Controller
WAN
Acceleration
Orchestrated,
automatic &
remote install
DPI
Firewall
Carrier
Grade NAT
Tester/QoE
Monitor
Standard High Volume Servers
SGSN/GGSN
PE Router
BRAS
Radio/Fixed Access
Network Nodes
 Fragmented non-commodity hardware.
 Physical install per appliance per site.
 Hardware development large barrier to entry for new vendors,
constraining innovation & competition.
Figure 1: Vision for Network Functions Virtualisation
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Standard High Volume Storage
Standard High Volume Ethernet Switches
Network Functions Virtualisation Approach
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Major Milestones
OPNFV
OpenDaylight
NFV
Nicira bought
ONF founded
OpenStack
OpenFlow 0.2
Mar 2011
2010
2008
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Mar 2013
Sep 2012
July 2012
Oct 2014
Important Points of Understanding
• SDN / NFV is very disruptive, moving to ECOSYSTEM model
 So disruptive that vendor-buyer partnership needed
• Disruption driven by huge needs of key buyers: SPs/Web2.0
 SPs / Web2.0 buy a lot, but huge needs take time to solve
 Smaller needs (of SPs or Enterprise) don’t drive the change
• But! Smaller needs can leverage the SDN progress
 I.e. technology built for huge tasks can solve smaller tasks NOW
• This is where we are now
© Hitachi Data Systems Corporation 2014. All rights reserved.
THE LAST 6 MONTHS
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ONF Forwarding Abstractions (my) WG TTP Spec
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The Brocade Vyatta Controller
• Commercially Supported Version of the OpenDaylight Project
Brocade Applications Licensed Separately
OpenStack and
OpenDaylight, two key
open source SDN
communities, are
becoming increasingly
more aligned.
Network Applications
Orchestration & Services
3rd-Party Partner
Applications
Licensed
Separately
OpenDaylight APIs (REST)
Base Network Service Functions
Brocade
Contributions
To Open Source
Controller Platform
Service Abstraction Layer (SAL)
OVSDB
Brocade Plugins
Contributed
© Hitachi Data Systems Corporation 2014. All rights reserved.
Southbound Interfaces
& Protocol Plugins
Brocade Packaged Solutions
Licensed Separately
Brocade Routers and Switches
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Other important changes
Real progress on southbound interfaces (OF and others)
Convergence in OS controllers, with supported distributions
 Model driven, agile build, scalable and performant
Many SDN and NFV trials are (quietly) underway
OPNFV formed
Many product and system test tools now available
Perhaps most important:
 Maturity of mindset and perspective across the industry
© Hitachi Data Systems Corporation 2014. All rights reserved.
What to expect in 2015
2015 will be the year of the “SDN part number”
 Many GA products will ship
 “Open Vertical” (bundled but standards-based) solutions
 Partner bundles will also be available
 SDN Technologies aimed at SPs are getting mature
 But the technologies are not specific to SP problems
 Many Enterprise trials and deployments will also occur
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Other thoughts
Many storage-oriented challenges can benefit from SDN
 Cloud was main driver of SDN
 Cloud also requires storage
But main focus of SDN (and NFV) has naturally been on IP
 As IP use cases stabilize, adaptation to storage will come fast
© Hitachi Data Systems Corporation 2014. All rights reserved.
THANK YOU
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