. NEST IP-MPLS. . NEST 2.5/3G. . NEST TELEPHONY . . NEST TSM .

NEST Traffic Source Modeler

NEST TSM is an integrated workbench with four built-in modules

• Generic Traffic Source Modeler associated to a Traffic Matrix Generator
• Traffic Statitical Analyser
• Network Simulator
• Emulator (under development)

NEST TSM proposes a large scope of complex Traffic Sources for mobile terminals and PC terminals for standard applications (FTP, email, web, MMS, Push to Talk, audio codecs, video codecs, streaming …). The user can use a sophisticated editor to build new traffic sources based on stochastic models (unitary sources, aggregated sources, TCP/UDP sources …) and a matrix traffic editor to build complex user behavior based on time-dependent population activity. Using the Trace import facility, one is able to conceive new Traffic sources fitting network real time measures. The simulation kernel associated to an emulation platform is a Key innovative solution to evaluate and benchmark complex IP-MPLS Networks.

NEST TSM Features :

• Reproduce in a simulation environment, or on an emulation platform typical network multimedia traffics (HTTP, FTP, Video Streaming)
  
• Anticipate new traffics (video on demand …)
  
• Simulate population activity (call behavior)
• Simulate access nodes and backbone routers
  

A powerful Simulation tool for routers & Gateways

A precise simulation router model with all devices :

• input/output interfaces,
• Multiple queues for CoS traffics
  
• All diffserv algorithms (CAR, shaping, scheduling, label switching, ...)
• IP & LSP routing tables…
  

With NEST TSM one can :

• Simulate Complex Network topologies
• Use Virtual links to simplify the simulation of complex networks (end to end losses, delay & jitter between each pair of routers)
• Simulate any combination of heterogeneous multimedia traffic sources
• Reuse these sources for real packet injection in the emulator (under development)
  

A powerful Trace Analyser

Import of Traffic Traces : NEST traces, NS Traces, SNMP traces …
Statistical Analysis on packet interarrivals and packet length distribution laws (moment fitting, correlations, autosimilarity …)

E/M algorithm
Levenberg-marquardt algorithm
Help the user to build a new simulation traffic source fitting real time measures
Various graphical outputs