All rights reserved © 2006, Alcatel Grid Standardization & ETSI (May 2006) B. Berde, Alcatel R & I.

All rights reserved © 2006, Alcatel

Grid Standardization & ETSI (May 2006)

B. Berde, Alcatel R & I

All rights reserved © 2006, AlcatelETSI Standardization / May 2006

Strategic vision: unblock IT+Telecom

“Utility” services on a large scale, providing conjointly:Network and resource-end system services (maybe co-optimized)

Automated service, connectivity, and resource on-demand

Internet achieves a critical mass of users

Preserving the current levelof infrastructure-based competition for operators and service providers

New Grid technology:Adapting to the overall complexity while democratizeGrid services


Overview

Identifying requirements and defining specifications for next generation client-to-business (or business-to-business) communication

Why: When 95% of the overall traffic is peer-to-peer (Direct Connect and Bit):

Traffic characterization per end-user (with the courtesy of Acreo, 2005)


Transition to Telecom + IT convergence

Broadening the scale of current Grid environments: Coping with the infinite amount of resources available through Internet

Triple questioning: 1. How to set up accurately network resources, matching Grid

applications’ requirements over the Internet 2. How to transform accessibility of resource-end systems into

Internet ‘networked resources’3. How to consider eventually optimization of those resources for

Grid applications - with inherent QoS assurance and service monitoring

New ‘philosophy’ and thereby optimization methodologies are relevant:

Virtualization of the resource location Tradeoff between network resource and resource-end system

capacity/performance (CPU, storage, etc)


What is about current applications and signaling

Client-to-Business and Business-to-Business applications can be both session based and non–session based

Such applications include (but are not limited to): Peer-to-peer applications Grid computing eCommerce, eGovernment etc

requiring low latency and highly variable bandwidth in time

Therefore, signaling is performed today (and often mixed between): Application layer Service delivery layer supported by service connectivity layer e.g., session initiation/control

And rely on a pre-engineered IP/MPLS network (no interaction with)


Existing solutions: ‘hosts drive the network’

Network resource reservation: Today corporate resources are accessible via dedicated networks rarely accessible from the Internet

Application level communication protocols uses often large middleware (even though standardized)

Dedicated point-to-point connections; networking issues such as dynamic routing and traffic engineering are no longer required

Communication between applications and network: A (domain) central management instance, Bandwidth-Broker (BB) type solutions; however, there is no efficient means today to communicate between (distributed) applications and networks

Service Resource Broker (SRB)

But generally, a sort of QoS overlay atop the network infrastructure e.g., Infranet initiative


Transition: the problem space

Existing solutions:1. Communication at the applicative level - network seen as

a black box

Innovation for production networking:2. Service adaptive and cooperative communication between

hosts and the network - network is integrated with ‘hosts’

Main challenges:3. Evolution from existing 1 to 24. Adjoining virtualized access to resource end-systems


Transition: how to link application and network

Need for end-to-end network resource provisioning Mapping of Grid application/middleware requirements to the network

layer at host – (vertical arrow) Provide edge-to-edge network resource reservation using the

CURRENT network layer capabilities - (horizontal arrows at the network layer)

Innovation: Service adaptive and cooperative host-to-host (end-to-end) resource reservation mechanism


BroadbandAccess network

METRO Network

Broadband Access network

Enterpris

e network

Corenetwork

Corporate

Network

= VARS networks

= Server parks

Target result: VAR service (Virtual Access to Resource)

ClientClient

Virtualization

ClientClient


Positioning the overall technical framework

Key 1: Enable integration of custom business applications across networks

Key 2: Open new markets to Telcos

APPTCP/UDP

IP

Virtual accessibility

TCP/UDP

Project activity focus


Scope of acitivities at ETSI

Define and specify various (end-to-end) signaling needs with the related horizontal and vertical interfaces between: Application level Service delivery platform e.g., middleware Service connectivity level

Service stratum independent from any network-layer specific mechanism e.g., QoS

for seamless (collaborative) application communication and resource information handling with the service stratum

Outline some business aspects: interactions between client / network / service provider

Create momentum and propose standardization topics

Service stratum


Conclusions

Business aspects: Grid technologies do not generate money today Grid over the Internet needs the support of Telecom operators

The business sustainability is only possible if making the evolution from enterprise and scientific Grid to wide-area “Utility” Grid - the next step

“Utility” vision for Grid (over Internet): Not a single transposition of existing Grid environments into Internet networked ones

Not all about middleware Serious networking and other problems arise - real research challenges

Standardization at ETSI - may play a crucial role in the Telecom and IT convergence


www.alcatel.com


Service signaling: session enabled host-network interaction

Session-level signaling is intercepted at the edge SAL level allowing to communicate session requirements to the network

Session-level signaling indirectly uses network reserved resources (not only for network resources) => Embedded network intelligence

Network Network

Transport Transport Transport Transport

Network

Transport

APP

SALSALSALSAL

SALSAL

APP

SALSAL

IP IPGMPLS GMPLS

Host-network communicationthough Session-layer signaling(1) (3)

(2)

All rights reserved © 2006, Alcatel Grid Standardization & ETSI (May 2006) B. Berde, Alcatel R & I.

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