Interview: Olaf Schnapauff Vice President & Chief Technology Officer – Cloud & Partner Sales, T-Systems

OlafAhead of IIR’s 4th Annual Network Virtualization Forum, Europe we spoke to one of the forum’s speakers Olaf Schnapauff  Vice President & Chief Technology Officer – Cloud & Partner Sales, T-Systems, to hear his thoughts on the development of the industry


Software Defined Networking:

What are the biggest misconceptions regarding SDN?

SDN is not less complex, any new layer brings complexity and has to be regarded. Vertical orchestration is key in running business services.

You can´t get  rid of the problems of your old infrastructure whilst building a virtual layer upon them. First you have to build a new and proper structured physical layer and then you can get improvements in efficiency. SDN can also never be successful without organisational realignment.

Where will operators see the biggest benefits when implementing SDN technologies?

Once you did that step you get really much more flexibility for operations and in scaling. If you create a SDN based infrastructure for your customers, be aware to use that for new ecosystems of your core business also.

What are the current roadblocks for live deployment?

It´s still missing trust in a full blown production eco-systems regarding all interfaces to processes and IT. It’s often not possible to use old OSS/BSS and even the people and skills. So it’s an big investment and only a small chance of  getting a soft migration.

MigrationSome services have a big customer base, who care for migration complexity and cost

Customers are often not aware of the differences to old systems. They want their old SLA logics combined with new contracts and prices. This doesn’t work. The new paradigm is also a new one for customers SLA and their interfaces.

Network Function Virtualization:

What are the biggest misconceptions regarding NFV?

There is no common NFV – this means every service has its own flavour that makes it more or less able to be virtualized. So there are still hardware implications or low density requirements that might bring you in trouble if its virtualized and/or centralized.

Also a fully standardized way to operate NFVs under a common orchestration layer might be too much to expect from the market currently.


Where will operators see the biggest benefits when implementing NFV technologies?

Of course at first the scalability on x86 infrastructure (if it works) and the opportunity to centralize network functions  – cloud based.  Another big benefit are better ways to use NFvs  in service chains and automate and orchestrate them.Pricing

What are the current roadblocks for live deployment?

It´s just the problem of having new investments in sometimes low margin markets. Somebody has to pay for it.


Olaf will be speaking on Day 1 of IIR’s 4th Annual Network Virtualization Forum, Europe (15-17 September, Madrid) you can download the full e-brochure right here

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