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Standards and Specifications
Capture and Playback System
5 Standards and
Specifications
Capture and Playback System
Capacity
Playback
Parameter Nominal Minimum Maximum Notes
Capture memory per
port
1 MB 7 MB 1 MB reserved for
foreground traffic generation
Playback memory
per port
1 MB 8 MB
Parameter Nominal Minimum Maximum Notes
Frequency range
100 b/s 149.76 Mb/s maximum for OC3/STM-1
optical interface pod
Step size
100 b/s
Accuracy
25 b/s relative to line rate
Sequence length
1 cell 131072 cells length as captured
Distribution
accuracy—poisson
approximates a poisson
distribution for bandwidths
of less than 10% maximum
Distribution
accuracy—sawtooth
±5% BW
max
/BW
min
=10,
Sequence length ≥ 500 cells
Distribution jitter—
sawtooth
−1 cell +2 cells offset from nominal
inter-departure time