Transcript Purpose of IOT

Multivendor Interoperability
Introduction, Interoperability Verification at Nokia Siemens
Janos Arrakoski, Nokia Siemens Networks, IOT
Helmut Schink, Nokia Siemens Networks, Industry Environment
Nairobi, July 30, 2010
Company Confidential
1
© Nokia Siemens Networks
/
Content
• Basis for Interoperability
• Interoperability Verification requirements are different
• Drivers for Interoperability
• Interoperability Verification at Nokia Siemens Networks
• Interoperability Verification Output/Benefit (for developing countries)
• Interoperability Verification Projects Experiences from developing
countries
• Two Categories of “Interoperability Issues”
• Summary
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Basis for Interoperability
• Open Standards and Conformance make
multivendor configurations possible
• Conformance, compliance with standards is
essential for interoperability, but;
– No standard is perfect
– Standards evolve
– Implementations are different
– Implementations evolve
• Although Standards and Conformance are in general good, some
Interoperability challenges will exist in telecommunication
networks due to the complexity of the systems
• Interoperability Verification is needed to identify those challenges
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Interoperability Verification requirements are different
• Interoperability Verification needs vary;
• Standards/Interface maturity and evolution, the complexity,…
• Deployment scenario and configuration …
• There are usually numerous possible multivendor
configurations
• Different Vendor/Product/Interface/SW Version/Configuration
& Parameter combinations
• Different Interoperability Verification activities and approaches are
needed to address the various needs efficiently
• All stakeholders must participate and do their share
• Majority of networks where NSN is a supplier are multivendor
networks and it’s also in NSN interest to endorse interoperability
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Drivers for Interoperability
• Interoperability is driven by market requirements, Operators
demand:
• State of art products
•Latest Functionality & features, Early Timing, High Quality, Low Cost,…
• Supplier independency and competition
•Manage and minimize risks and costs,…
• Secure investment
•Product Evolution, Long lifecycle, Maintenance,…
• Consolidation and convergence
•Fixed/mobile, all IP,…
• Everything and Anything
•Seeking for Competitive Advantage
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Interoperability Verification at Nokia Siemens Networks
• Interoperability Verification is a integrated part of the
Nokia Siemens Networks Product Development
process:
– Driven by
▪ Technical requirements
▪ Market requirements
• Interoperability Verification is additionally supported and
offered in the in the Product Delivery process:
– Driven by
▪ Market requirements
• Other infrastructure manufacturers have the very same approach
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Interoperability Verification Output/Benefit (for
developing countries)
• All parties (Vendors and Operators in both developing and
developed countries) benefit from the performed Interoperability
Verification equally
• Products with improved interoperability become available to all Operators
• Results of Interoperability Verification are available to Operators for their
multivendor configurations
• Operators striving for Technology Leadership
trigger and participate in early Interoperability
Verification (usually developed countries)
• Certain “well proven” configurations will arise
• Other operators (e.g. in developing countries) will
benefit from that
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Interoperability Verification Projects Experiences from
developing countries
• Nokia Siemens Networks has run several successful
multivendor projects in developing countries;
• Nigeria, South Africa, Tanzania,…
• Projects cover infrastructure for several technologies,
GSM/GPRS, WCDMA and for both Core Network and Radio
Network Elements
• Multivendor verification project duration is usually one to some
weeks per interface depending on interface and test scope
• No blocking issues have been reported
– Interoperability, conformity and standards are good
• Configuring the network is a key activity in the project
– A task that must be done in every project anyway
• No differences compared to projects in developed countries
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Two Categories of “Interoperability Issues”
1) Problems appearing as “interoperability issues”
(i.e. occur in single
vendor environment too)
• Many times wrongly perceived as “interoperability issues”, typically due to:
• Invalid Configuration of network
• Inadequate System Testing (Conformance, Functionality, Performance,…)
2) Real “interoperability issues” (i.e. occur only multivendor environment)
• Protocol conformance is usually high, issues arise mostly due to:
• Different options allowed by specifications
• Incomplete and/or ambiguous specifications
• Invalid Configuration of network
• Category 1) represent many times majority of issues in a multivendor project
resulting in a false perception that interoperability is poor.
• The correct conclusion is in many cases:
– System not properly configured and parameterized and/or Product Quality is poor
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010
Summary
• Open Standards and Conformance alone
will not ensure 100% interoperability
• Standards are widely available and adopted
• Conformance is mostly at a good level
• Each Vendor define and ensure their conformance
• Market driven Interoperability Verification is efficient and focus on
operator needs
• A mechanism to address potential interoperability issues is
already in place
• Final configuration and parameterization of the operator
network must always be done in the operator network
Customer Confidential
2009
© Nokia Siemens Networks
NSN Multivendor Interoperability Presentation for ITU-T / JAr / 02.07.2010