Report from the Cloud
Services Forum
Andrew White, CSF Chair
Nokia Siemens Networks
October 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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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
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CSF Principles
User
End users interact with the business
application oblivious of the component parts.
Subscriber
End Users
Service
Service Interaction Management is used to
blend service enablers into a business
application.
Service
Interaction
Applications
Reuse
Service Enablers
Service
Resource
App
App
App
Applications
The Service Enablers exposes resources
(applications, data, and connectivity) through a
defined, reusable interface.
Data
Data
Data
Storage and
Computing
Networks
Access & Transport
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Service Creation in the Cloud
Service Enabler
Characterization provides key
non-functional data to
populate Service Catalog
Service Catalog
Core Competency
Service Interaction
Management
Partner Enablers
Service enablers come from many places and are combined into
finished services through a common framework.
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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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Inter-connected CDN Delivery Model
CDN Provider-2 Network & CDN
CDN Provider-1 Network & CDN
Content
Delivery
Node.
Content
Delivery
Node.
Routing, Backoffice
Storage, Origin
Network
Peering
Content
Delivery
Node.
Routing, Backoffice
Storage, Origin
Content
Delivery
Node.
Note: only data path is shown for clarity.
Request & back-office path not shown.
Cache Based Delivery
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User Content Data Path
Node Cache Fill Data
Path
Use Case Areas
Content Types
and
characteristics
Off-peak – Software download
Peak & on-demand – Web, LFD, VOD, etc
Real-time - Events
Delivery types &
protocols
Unicast, Multicast: different protocols
Customer Lifecycle
Presale
Post
-sale
Capabilities,
reservation, Ontrial
boarding,
Testing
Peer-Peer
Interconnection
Life-cycle
On
Boarding
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Content Delivery
Additional &
on-demand
capabilities,
operational
management,
Performance
End Post
Cont mort
ract em
Purge,
etc.
Active/interconnected Environment
Root
cause,
audit
Termination
Purge,
settlements
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CDN-I Interface Domains
Bi-Lateral Agreement Between Two Carrier CDNs.
Assume that each carrier peers with another carrier at the CDN Level
Operations &
Customer Care
Back-Office
SLA/outages/ticketing,
Special customer requests
Provisioning, Logs,
settlement
Operations &
Customer Care
Back-Office
Routing
Traffic distribution, load
management, AMT Relay
addresses
Routing
Delivery
Features, Capacity reservation,
Origin access, multicast
sources/groups
Delivery
Network
Interconnection
CDN Provider-1
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Access, Security
Network
Interconnection
CDN Provider-2
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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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CDN Federation Model Interface Domains
Federation exchange: There is a trusted 3rd party for facilitating federation
Operations &
Customer Care
Third Party Functions
Operations &
Customer Care
SLA/outages/ticketing,
special customer
requests
Back-Office
Provisioning,
logs, settlement
Routing
Routing
Traffic distribution, load
management, AMT relay
addresses
Delivery
Delivery
Features, capacity
reservation, multicast
sources/groups
Back-Office
3rd
Party
Origin access
Network
Interconnection
Carrier-1
Access, Security
Network
Interconnection
Carrier-2
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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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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
Conformance
Compatibility
Ongoing audit (i.e. capture) of
services on the cloud
platform/infrastructure
Augmentation, abridging,
and annulment of services
within the cloud
platform/infrastructure
Cloud
Lifecycle
Checklist
Contractual
Compliance
Custom 1
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Connectivity
Custom 2
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Virtual desktop infrastructure (VDI)
• An initial baseline document was developed mid-year to
describe the virtual desktop client requirements for CSFdefined 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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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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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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