TCP Analyzer

• Fundamental Performance Evaluation

  • Pre-defined set of experiments
  • Automatic execution
  • Base for comparing TCP flavors and network effects

• Configuration:

  • Operation System: FreeBSD 4.1
  • Testing Tools: DBS, netperf, ...

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Performance Evaluation -- Experiments
FTP transfer with given files

Predefined TCP (and UDP) traffics

Performance Evaluation -- TCP flavors
BSD supports:

Reno

SACK (...more?... find out !!!!!)

Configuration -- OS:
FreeBSD choosen for MAC Demonstrator implementation

Configuration -- Testing Tools:
RFC 2398 summarizes usefull tools

DBS: (later: maybe own slide)
compiled into kernel

throughput, window and timer behavior of TCP
multiple connections with predefined characteristics (also UDP)
netperf:
single connection, bandwidth & latency