Software-defined networking (SDN) is an emerging set of technologies within network management that promises to solve many of the limitations imposed by current networking technology on rapidly evolving cloud-computing technologies. The SDN usage model specifies actions and processes to advance development of practical solutions that seek to lower management complexity and costs, especially in heterogeneous, multi-vendor environments. This presentation gives an overview of the usage model requirements and usage scenarios.

1. SOFTWARE DEFINED NETWORKING
Chris Swan
CohesiveFT

2. AGENDA
TOPIC
UM CORE
LEARNING
Software Defined Networking:
ODCA Usage Model – published June 2013
SDN-Enabled Network Services
Layer 2 Multi-Path
Layer 2 Network Bridging
Considerations and take-aways from this UM
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3. SDN UM BACKGROUND
Most Infrastructure as a Service (IaaS) consists of Compute, Storage and
Network. Having addressed Compute in the CIaaS master usage model
published in 2012 the Infrastructure working group turned to Scale out
Storage and Software Defined Networking in 2013.
The SDN UM addresses and identifies:
1.
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6.
What is SDN, and why is it beneficial
Usage scenarios
Lifecycle model
Usage requirements
RFP requirements (PEAT integration)
Required industry actions
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4. UM CORE – KEY ELEMENTS
Challenges of
Modern
Networks
Security, Logical grouping, Access control, QoS, Flow control
Requirements
of Modern
Networks
Adaptability, Automation, Maintainability, Model management, Mobility,
Integrated security, On-demand scaling
Concepts of
Software Defined
Networking
Separation of the network layers
Centralized management
Standardized protocols
The Four Layers
of Network
Software
Forwarding plane
Control plane
Services plane
Management plane
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5. SDN CONCEPTUAL ARCHITECTURE
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6. UM CORE – KEY ELEMENTS CONT.
Benefits of SDN
Challenge of
Security within an
SDN environment
Centralized network control and programmability
Dynamic network segmentation
VMs visibility
Capacity utilization
Network capacity optimization
Distributed application load balancing
Distributed network security services
Dematerialization
More dynamic change
Need to integrate with audit/monitoring/logging
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7. USAGE SCENARIOS
Usage
Scenario 1
SDN-Enabled Network Services
Usage
Scenario 2
Enable Layer 2 Multi-Path (East-West) Traffic
Usage
Scenario 3
Enable Data Center L2 Network Bridging
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8. ENABLE LAYER 2 MULTI-PATH (EAST-WEST) TRAFFIC
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9. ENABLE DATA CENTER L2 NETWORK BRIDGING
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10. KEY INDUSTRY ACTIONS (STANDARDS AND MORE)
Open Network
Foundation
(ONF)
Collaboration
collaboration on Southbound interfaces focusing on (dynamic network
segmentation into logical groups, multi-path traffic, layer 2 network
bridging)
with other groups as appropriate on other areas of SDN. e.g. Abstracted
control of network capabilities, Integration of network automation into
overall provisioning and orchestration (in line with CIaaS MUM)
Adoption
and full production implementations of SDNs in cloud environments as
quickly as practical.
Support
for initiatives, including OpenFlow, across all cloud-provider platforms.
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11. PROGRESS THROUGH 2013
Jun 2013
SDN UM published
Aug 2013
Major SDN product launches – not much sign of OpenFlow
Nov 2013
PoC at TM Forum event in partnership with ServiceMesh, Netronome
& PlumGrid
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12. COMING IN 2014
Broader
scope
Industry
realignment
Jun 2014
To include network function virtualization (NFV)
With emergent platforms in the hardware and virtualization
layers
Target for publishing revised edition
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13. KEY TAKE-AWAYS FROM THIS UM
SDN is a key element of the software defined data center
(SDDC) as a means to build IaaS
APIs to the network allow for more dynamic configuration
and automated provisioning
This is a fast moving part of the industry, and much of
what we did in H1-2013 has been overtaken by events
More to come later this year
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14. QUESTIONS
UM: Software Defined Networking
From engagement to real adoption and implementation
www.opendatacenteralliance.org
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15. INFORMATION AND ASSETS
Streamlined
Requirements
Accelerate Adoption
Standardized
Response Checklists
Accelerate TTM
Shared Practices
Drive Scale
Available to Members at: www.opendatacenteralliance.org
URL for Public content: www.opendatacenteralliance.org
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