Professional Equipment

Broadband Systems

IP Software

Newtec @ Virtual WallUlrik De Bie

October 13th, 2011

Newtec at a Glance

What ?Satellitetransmission

How ?Make groundsegment equipment

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TEL IPTV

Targeted problem domain

• Consumer Broadband access, IP over satellite• Network partitioning => groups of about 10000

consumers• Each user => bandwidth profile (e.g. 10Mbit/s

downlink speed)– => traffic shaping to be done => 'Tellishape' (DUT)

• profile limiting (eg max 10Mbit/s)• fair shaping and traffic distribution

• Satellite characteristics => 0.25s transmission delay (G-S-G picture)

=> acceleration desired => simulating this aspect requires 40 PCs

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Test environment

• DUT: Tellishape (traffic shaper)– => shapes 'accelerated traffic‘

• Tellishape, Avalanche (Spirent test tool), client and server acceleration instances

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Purpose EquipmentDUT: Tellishape 1 Newtec Serveracceleration processing ~40 Virtual wall

machinesother processing ~9 Virtual wall machinesweb traffic generation Avalanche (Spirent)

Realization

• simulation of "real" field situations• virtual wall offers efficient flexible test capacity

– Gradual increase possible: 25 machines (4 weeks) => 50 machines (2x2 weeks)"swapped in"

– Low learning curve– Easy to operate : define once, run many– Easy to attach other hardware (test HW, DUT, ..)– test infrastructure needs varies over time => own acquisition of

such platform not justified• scalability issues in own SW found and corrected

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Professional Equipment

Broadband Systems

IP Software

Thank you for your attention

Ulrik De Bie – udb@newtec.eu