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Report from the Cloud Services ForumAndrew White, CSF Chair Nokia Siemens Networks
October 17, 2011
ITU-T SDP WorkshopOctober 17, 2011
Outline
• CSF Background
• CSF Principles
• CDN-I Release 1 completed
• CDN-I Release 2 in progress
• Inter-carrier telepresence launch
• Cloud Lifecycle Checklist
• Status of other priority initiatives
• CSF end-to-end process perspective
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ITU-T SDP WorkshopOctober 17, 2011
Background
• CSF launched mid-February 2011.• The committee includes the concepts of the
previous SON Forum with a broader scope.• Initial set of deliverables identified during
inaugural meeting focused on inter-provider telepresence, content distribution and VPNs.
• Subsequently, it was agreed that the primary focus would be to complete Content Delivery Network Interconnection (CDN-I) work in a short time interval.
• Additional information can be found at the following link• http://www.atis.org/Cloud/index.asp
ITU-T SDP WorkshopOctober 17, 2011
Applications
Storage andComputing
Networks
Service Enablers
Applications
End Users
User
Service
Reuse
Resource
CSF Principles
Service
App App App
Data Data Data
ServiceInteraction
Subscriber
Access & Transport
The Service Enablers exposes resources (applications, data, and connectivity) through a defined, reusable interface.
Service Interaction Management is used to blend service enablers into a business application.
End users interact with the business application oblivious of the component parts.
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ITU-T SDP WorkshopOctober 17, 2011
Service Creation in the Cloud
Core Competency
Partner Enablers
Service enablers come from many places and are combined into finished services through a common framework.
Service InteractionManagement
Service Catalog
Service Enabler Characterization provides key non-functional data to populate Service Catalog
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ITU-T SDP WorkshopOctober 17, 2011
CDN-I Release 1
• CDN Interconnection Use Case Specification and High Level Requirements, (ATIS-0200003), published June 2011
• Develops use cases and requirements for CDN-I structured by phase in the interconnect lifecycle
• Provides focused interconnection model that addresses• Software Download• Cached Delivery• Peer to Peer Interconnection
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ITU-T SDP WorkshopOctober 17, 2011
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Inter-connected CDN Delivery Model
Storage, OriginStorage, Origin
Content Delivery Node.
Content Delivery Node.
Content Delivery Node.
Content Delivery Node.
CDN Provider-1 Network & CDN
Network Peering
Note: only data path is shown for clarity. Request & back-office path not shown.
CDN Provider-2 Network & CDN
User Content Data Path Node Cache Fill Data Path
Routing, Back-office
Routing, Back-office
Cache Based Delivery
ITU-T SDP WorkshopOctober 17, 2011
Use Case Areas
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On Boarding
Termination
Purge, settlements
Active/interconnected Environment
Pre-sale
Post-sale
Content Delivery End Contract
Postmortem
Capabilities, reservation, trial
On-boarding, Testing
Additional & on-demand capabilities, operational management, Performance
Purge, etc.
Root cause, audit
Unicast, Multicast: different protocols
Off-peak – Software downloadPeak & on-demand – Web, LFD, VOD, etc
Real-time - Events
Peer-Peer Interconnection Life-cycle
Customer Life-cycle
Delivery types & protocols
Content Types and characteristics
ITU-T SDP WorkshopOctober 17, 2011
CDN-I Interface Domains
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Network Interconnection
Delivery
Routing
Back-Office
Operations & Customer Care
Network Interconnection
Delivery
Routing
Back-Office
Access, Security
Features, Capacity reservation, Origin access, multicast
sources/groups
Traffic distribution, load management, AMT Relay
addresses
Provisioning, Logs, settlement
SLA/outages/ticketing, Special customer requests
Operations & Customer Care
CDN Provider-1 CDN Provider-2
Bi-Lateral Agreement Between Two Carrier CDNs.Assume that each carrier peers with another carrier at the CDN Level
ITU-T SDP WorkshopOctober 17, 2011
CDN-I Release 2
• CDNI-I Release 2, targeted for completion by the end of 2011, will develop use cases and requirements for:• Multicast-based content delivery with applicable content
types (e.g., live streaming)• Federated CDN-Interconnect• Cloud services charging (generic function driven by CDN Use
Cases)
• Other Release 2 objectives:• Group comprehensive requirements per applicable
interconnection domain • Develop reference architecture for CDN-I NNI with other
impacted ATIS Committees• Evaluate protocols including the output of the IETF CDNi
Working Group (when available) to support use cases and requirements
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ITU-T SDP WorkshopOctober 17, 2011
Access, Security
Origin access
CDN Federation Model Interface Domains
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Network Interconnection
Delivery
Routing
Back-Office
Operations & Customer Care
Network Interconnection
Delivery
Routing
Back-Office
Traffic distribution, load management, AMT relay
addresses
Provisioning, logs, settlement
SLA/outages/ticketing, special customer
requests
Operations & Customer Care
Carrier-1 Carrier-2
Federation exchange: There is a trusted 3rd party for facilitating federation
3rd Party
Features, capacity reservation, multicast
sources/groups
Third Party Functions
ITU-T SDP WorkshopOctober 17, 2011
Inter-Carrier Telepresence
• Objective is to develop, by year-end, an ATIS specification describing the high-level, end-to-end message flow diagrams for access-agnostic, inter-provider telepresence
• Both private and public cloud domains will be considered
• End user may access these cloud domains by using wired or wireless devices
• The focus is to use functional service enablers as defined by ATIS CSF
• Abstracted messages between the functional elements will be used rather than specific network elements and protocol messages
• This output is expected to be the basis of subsequent ATIS CSF service architecture specifications
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ITU-T SDP WorkshopOctober 17, 2011
Cloud Lifecycle Checklist
The checklist is being developed to facilitate the following six functions from a cloud provider:
• Assessment and acceptance (i.e. build) of services onto the cloud platform/infrastructure
• Ongoing audit (i.e. capture) of services on the cloud platform/infrastructure
• Augmentation, abridging, and annulment of services within the cloud platform/infrastructure
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Cloud Lifecycle Checklis
t
Conformanc
e
Connectivit
y
Compliance
Custom 2
Custom 1
Contractual
Compatibilit
y
ITU-T SDP WorkshopOctober 17, 2011
Virtual desktop infrastructure (VDI)
• An initial baseline document was developed mid-year to describe the virtual desktop client requirements for CSF-defined services, to include both enterprise and consumer domains.
• The scope of the initiative was recently revised to limit context to enterprise services (and related network architecture) only.
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ITU-T SDP WorkshopOctober 17, 2011
Virtual Private Network (VPN)-Oriented Data Center Services (VDCS)
• Initial baseline document created in support of VDCS - a generic framework to provide virtual private cloud services.
• Objective is to develop use case specification for using the VPN network as the common control point for end–to-end services on interconnected data center resources.
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ITU-T SDP WorkshopOctober 17, 2011
In Summary
• CSF continues on a fast track as it focuses on the next priorities.• CDN-I
• Telepresence
• Cloud Lifecycle Checklist
• Virtual desktop infrastructure (VDI)
• Virtual Private Network (VPN)-Oriented Data Center Services (VDCS)
• Important synergies exist with the work on• Framework Development,
• Service Enabler Definition, and
• Vertical Service Creation.
• The Cloud Services Forum looks forward to continued interaction with ITU-T SG13 on these important topics.
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