Delivery over Carrier Ethernet Networks

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3 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

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Ralph Santitoro

Director of CE Market Development

Ralph.Santitoro@us.Fujitsu.com

Meeting the Challenges for Cloud Service
Delivery over Carrier Ethernet Networks

November 8, 2011

NIST Cloud Computing Definitions

with EaaS (Ethernet as a Service) augmentation

Tablet Applications

SaaS

[application]

PaaS

[platform]

IaaS

[IT infrastructure]

EaaS

[WAN infrastructure]

Internet

Internet WAN Network

2

Building Virtualized On Demand Cloud Networks

Ethernet

WAN Network

November 8, 2011

Network Service Provider Requirements to
Support On
-
Demand Cloud Applications


Elastic Ethernet Service Attributes


On
-
demand ability to request EVC or Ethernet service attributes be
added or modified for a specific time period


Once time period ends, they revert back to their prior state


Example Elastic Attributes


Increase CIR of existing EVC


Add an EVC with associated service attributes (e.g., CIR, CoS, etc.)


Modify CoS performance objectives of existing EVC (e.g., Frame Loss)


On
-
demand billing approaches


Usage
-
based billing ($ per MB) based on networks/providers traversed
(metro/region/national/international)


Fixed rate based on duration of service usage ($ per hour/day)


Network/Cloud/Subscriber Management Orchestration


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Building Virtualized On Demand Cloud Networks

November 8, 2011

Management Orchestration Workflow

4

Building Virtualized On Demand Cloud Networks

Customer Portal

Cloud Provider
Management System

Ethernet Cloud Carrier
Management System



Add VMs and Storage



Add BW, CoS, EVC, etc.

Cloud Service Orchestration

Service
Attribute

Correlation

Cloud Provider

Cloud Consumer

Ethernet
Cloud Carrier

Orchestration among the different management systems results in

consistent Quality of Experience for the Cloud Consumer

November 8, 2011

Cloud
-
WAN Service Correlation Challenges


How to correlate between different provider resources for
a given Cloud application


Cloud Provider VMs and Storage


Ethernet Cloud Carrier Network Resources (BW, Availability, Capacity)


Simple Example: MRI Image Processing Cloud Service


500 VMs required to process MRI in 2 hours, 1000 VMs for 1 hour


Network BW selected based on upload time for a given MRI file


50Mbps to upload file in 20 minutes, 200Mbps to upload file in 5 minutes


More Complex Example: Cloud Consumer wants 200
employees to use a cloud application for 1 week


10 VMs required to support 200 users



What network BW or QoS is required for the given cloud application?


5

Building Virtualized On Demand Cloud Networks

More standards development work needed in this area

November 8, 2011

Cloud Service delivery Challenges for
Large Enterprises


Today, Internet is predominant method to connect to cloud services


Cloud Community has given little attention to WANs


Larger Enterprises hesitant to move mission
-
critical applications to
the cloud when delivered via the Internet


Concerns with Security, Performance, Data Governance/Regulatory Compliance

6

Building Virtualized On Demand Cloud Networks

Cloud Provider(s)

Internet

Enterprise Cloud

Consumers

The WAN is critical for cloud service performance


Insecure


Unpredictable availability


Inconsistent performance


Uncontrolled by IT Dept.


November 8, 2011

Cloud Service Delivery via Packet Optical Networking

with on
-
net Private Cloud Services


Addresses Internet concerns of large enterprises


Security, privacy, availability, data governance and compliance


Positions Ethernet SP as the turnkey provider


Private cloud services and Ethernet services with SLAs

7

Building Virtualized On Demand Cloud Networks

Enterprise


Cloud
Consumers

Ethernet Service
Provider

On
-
net Private
Cloud Services

Internet

Public Cloud
Services


Secure


Predictable Availability


Deterministic Performance


Controlled by IT Dept.


November 8, 2011

WAN
Service
Provider

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Building Virtualized On Demand Cloud Networks

The WAN Service Provider Solution Gap


View network as commodity


Shop around for lowest price per Megabit


View cloud provider higher in value chain


Multiple agreements for cloud and network


Cloud
Service
Provider

Enterprise
Cloud

Consumers



Higher customer loyalty once relationship is
established


Leverage Internet to

connect to Cloud Consumers

Secure / Robust
WAN

But driven to
commodity


WANs being driven to commodity pricing


Limited unique customer experience / value



Need a strategy to move up the “value chain”


Investment in cloud expertise/facilities is
substantial


WAN Service Provider acts as a Cloud Services Broker

November 8, 2011

Requirements for Private Cloud Service
Delivery over Metro Ethernet Networks


Ethernet Services/WANs must support the following as new
Cloud Services/Applications (
XaaS
) are instantiated/terminated


Dynamically add and remove WAN bandwidth


Align Ethernet service bandwidth and quality of service (QoS) with the
XaaS

VM compute and storage requirements


High reliability connections to ensure “always available”
XaaS


Deterministic QoS performance (packet latency / loss) to ensure
consistent end
-
user quality of experience (QoE)


Well
-
defined demarcation between Metro Ethernet and Cloud Provider’s
networks to facilitate service troubleshooting


Ethernet Service/WAN security must align with Cloud Provider’s security
in order to meet security compliance and regulatory requirements


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Building Virtualized On Demand Cloud Networks

Packet Optical Networking well suited to meet these requirements

November 8, 2011

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