Cloud Networking: Network aspects of the cloud

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Cloud Networking: Network aspects of the cloud

Thomas Edwall, SAIL Project ManagerEricsson AB

FIA, session 2.3:Aalborg, Denmark, May 11th, 2012Fifth Future Internet Cluster

12-05-16 1

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Flexible networking &distributed virtual

infrastructure

Towards a Carrier CloudA

pplic

atio

n ev

olut

ion

Mid ’90’s Mid ‘00’s Mid ’10’s

DC based clouds

ApacheApache

Legacy apps on dedicated servers

Legacy appsin cloud (IaaS)

Drivers: Server consolidation economies of scale, pay-per-

use / scale-with-demand

Drivers: IaaS including networking in one package, Tailored multisite

connectivity

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Current cloud context

• Main focus is about computing and storage resources in a ”one-to-one” fashion

• Connectivity between those components always forgotten

ComputeStorage

Public Cloud DC

Enterprise

(Private Cloud DC)

Wide Area Network

Connectivity

Unpredictable response times

Security issues with business critical data

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Add the network aspect to the equation!• Satisfying application

requirements for latency and bandwidth is key.

• Network constraints need to be by added into the cloud optimisation equation

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Approach #1: Distribute cloud resources in the network

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Boundaries between domainsIntra-domain interface

Inter-domain interface

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6

Taking interoperability into account

• Assure interoperability, both intra- and inter-domain

Adding network aspectsAdding network aspects

Approach #2: Assess which network domain or Data Center to put your cloud resources in.

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Interoperability will be needed in both cases. There will always be boundaries

and domains…

Intra-domain

Inter-domain

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Interoperability between clouds require control of:• How to request resources • How to realise/implement

the requested connectivity

Distributed Infrastructure Services

Link negotiation, protocol agreement and setup

Infrastructure: VMs, Storage &Virtual Network

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OCNI and DCP

• OCNI:– SAIL proposed extension to

the OCCI interface/API from OGF

– Extends the API to not only manage ‘compute’ and ‘storage’, but also ‘networking’, in a cloud environment.

– Service control model for presenting high level resource requirements and delegate them across infrastructure (IaaS) services.

• DCP:– SAIL proposed protocol for

negotiating connectivity parameters on domain boundaries

– Typically such parameters are dependent on domain specific technologies and management policies not disclosed by the domain. Hence cannot normally be set by the requester.

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Webshop front-ends in geographically distributed clouds

All cloud sites interconnected by dynamically established VPN

Webshop database backend in homecloud

A single distributed virtual infrastructure

Distributed virtual infrastructure

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Final words

• SAIL is about networking• SAIL also caters for interoperability aspects of

the services and APIs developed• SAIL will be demonstrating Cloud Networking at

FuNeMS in Berlin in July!

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