Case Studies on Telecom Open Source, Paul Drew, Metaswitch Networks

Case Study on Telecom Open Source

Paul Drew, GM, Open Source Business Unit, Metaswitch NetworksKevin Paige, CTO & Director of Customer Services, Manx Telecom

Who are we? Leading communications solution provider in Isle of Man. Independent operator since Feb 2014 – listed on London AIM - ticker MANX Offer full range of fixed line, mobile, broadband, data, hosting and managed services to

consumers, business and public sector First European 3G network; 4G to 99% of population. Early adopter of IMS – aiming to do the same with virtualization and open source 3 x datacentres – egaming and financial services in particular.

Originally owned by BT, o2/Telefonica, private equity (Hg Capital) & public ownership

Project to replace EOL IMS core Using Metaswitch Fixed Line IMS solution

Based on Clearwater – open source IMS Core Plus TAS, AGC & SBC

Fully virtual Geo-redundant across 2 data centers

MANX TELECOM – VIRTUAL IMS REPLACEMENT

Metaswitch Networks | Proprietary and confidential | © 2014 | 2

ISLE OF MAN

Population 86,000 Plus 40,000 in TT week

UK crown dependency Not in the EU Best known for Isle of

Man TT race


NETWORK ARCHITECTURE


ResidentialTAS

Billing

IMS Core

HSSVoicemail

MGCF/ MGWSS7/ISUP

Trunks Interconnect

SBC SIP Trunks Interconnect

DNS

Access Gateway

Business TAS

SBC

PBXPBX

PBXSIP CPESIP

CPESIP CPE

Access Gateway

MSANMSAN

MSAN

Proof of Concept July – Dec 2014 Integration Testing Jan – Apr 2015

Using proof of concept system

Production deployment kick off Jan 2015 Virtualization environment deployed Jan – Feb 2015

Based on Cisco hardware and VMware

Metaswitch install and commissioning Feb – April 2015 Integration & Acceptance Testing May – Oct 2015 Migrations kick off Nov 2015

TIMELINE


WHAT WENT WELL?


Collaborative team working Onsite support Weekly management calls

Voice Design has stood up well

WHAT WENT WELL?


Clearwater has performed well in testing Open source products work in real networks

So far the expected business case benefits of NFV & SDN look like delivering 100% Reduced investment & operational Costs Faster time to market Simplified ongoing platform management

WHAT WENT WELL?


Virtualized product deployment gone well

WHAT DIDN’T GO SO WELL?


Metaswitch Fixed Line IMS solution didn’t fit neatly into the Manx Network IMS in the real world Manx IMS network doesn’t always follow the specs Had to continue to run existing network

Recognition that the end to end solution is key SAAS model was originally confined to IMS core software Metaswitch original view that is a make a “our” software work exercise Not possible to succeed with that approach – need to understand the whole solution

for project success.

Integration to retained network components Had to develop custom features to match existing function

IMS TAS Some complex SIP issues

HSS Non standard authentication Had to develop custom features to match existing function

PROJECT CHALLENGES - IMS


Initial virtual platform design did not behave as expected Resiliency is much more complex and capable in virtualised world and

needs comprehensive testing plan Virtual Networking requires a significant mind set change for traditional

networkers Technology is evolving rapidly

PROJECT CHALLENGES – I/PAAS PLATFORM FOR TELCO


Telco operating model needs be clearly understood, Telco guys don’t get Virtualisation Require IT or Cloud team with

strong networking skills to support the I/PAAS platform

Telco guys own supporting the software application

THE BRAINS OF THE NEW GLOBAL NETWORK

METASWITCH NETWORKS

THE BRAINS OF THE NEW GLOBAL NETWORK


Open Source software Manx early deployment of Clearwater Some teething issues but working wellOpen Source software works

IMS in real world Required flexibility and agility to address issues found in testingIMS can be deployed in multi-vendor environment

Virtualization Separating hardware and virtualization layer from applications Virtual networking can be challengingVirtualization works

Timelines challenging Some issues have caused delaysProject has reached migration phase in 10 months – final hurdle

VENDOR PERSPECTIVE


Manx Telecom has been a great customer to work with

Thank You

Unmatched heritage 30 years of software development Exceptional engineering talent

650 employees Enfield (London), San Francisco

1000 global customers Service providers OEMs Large Enterprises

Privately held Tier 1 investors (Francisco Partners,

Sequoia Capital) + employee ownership

Recognized leader in NFV & SDN E.g. AT&T Domain 2.0

METASWITCH: THE BRAINS OF THE NEW GLOBAL NETWORK


CLEARWATER – VIRTUALIZED IMS IN THE CLOUD

The Cloud

Open Source

Open Standard APIs

+

+ =

Massively scalable, very low cost,IMS platform

designed from the ground up to leverage

the Cloud

Business ModelInnovation

+

www.projectclearwater.org