[ns] How many packets rate (pkts/sec)?

[Chien-Lung Wu <cwu4@unity.ncsu.edu>]

Hi, NS-users:

As I check the ns-default.tcl, I found that
*********************************************
Application/Traffic/CBR_PP set rate_ 448Kb ;# corresponds to interval of
3.75msApplication/Traffic/CBR_PP set packetSize_ 210
Application/Traffic/CBR_PP set random_ 0 Application/Traffic/CBR_PP set
maxpkts_ 268435456; # 0x10000000 Application/Traffic/CBR_PP set PBM_ 2

Application/Traffic/Exponential set burst_time_ .5
Application/Traffic/Exponential set idle_time_ .5
Application/Traffic/Exponential set rate_ 64Kb
Application/Traffic/Exponential set packetSize_ 210

Application/Traffic/Pareto set burst_time_ 500ms
Application/Traffic/Pareto set idle_time_ 500ms Application/Traffic/Pareto
set rate_ 64Kb Application/Traffic/Pareto set packetSize_ 210
Application/Traffic/Pareto set shape_ 1.5

Application/Traffic/RealAudio set burst_time_ 0.05ms
Application/Traffic/RealAudio set idle_time_ 1800ms
Application/Traffic/RealAudio set rate_ 2Kb Application/Traffic/RealAudio
set packetSize_ 240 Application/Traffic/RealAudio set minCDF_ 0
Application/Traffic/RealAudio set maxCDF_ 1 Application/Traffic/RealAudio
set interpolation_ 0 Application/Traffic/RealAudio set maxEntry_ 32

Application/Traffic/CBR set rate_ 448Kb ;# corresponds to interval of
3.75ms Application/Traffic/CBR set packetSize_ 210
#Application/Traffic/CBR set random_ 0

********************************************
For example, if I use CBR, the rate is 448kb; and the packetSize_ is 210
(byte?). How many packets it will be generated in one second
(packets/sec)? The packet rate:
 ( 448kb/8)/210=266.6 (pkts/sec)

Am I correct?

How about the case of Exponential traffic?

TIA.


Chien-Lung