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Professional Equipment
Broadband Systems
IP Software
Newtec @ Virtual WallUlrik De Bie
October 13th, 2011
Newtec at a Glance
What ?Satellitetransmission
How ?Make groundsegment equipment
2
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
3
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 – [email protected]