Experiments and Simulations of TCP/IP Over ATM Over a High Data ...
Experiments and Simulations of TCP/IP Over ATM Over a High Data ...
Experiments and Simulations of TCP/IP Over ATM Over a High Data ...
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Experimental <strong>and</strong> Simulation Performance Results <strong>of</strong> <strong>TCP</strong>/<strong>IP</strong> over <strong>High</strong>-Speed <strong>ATM</strong> over ACTS, by Charalambous P.C. 30<br />
<strong>TCP</strong> SAT System_OC-12_BER [ 5-Aug-1997 10:49:25 ]<br />
Init<br />
Open File<br />
(APPEND)<br />
ERROR<br />
BLOCK;TIOC<br />
Faraday<br />
OC-12c<br />
<strong>TCP</strong> Host<br />
KU Switch<br />
OC-12<br />
Link<br />
TIOC<br />
Switch<br />
OC-12<br />
Link<br />
HDRT<br />
OC-12<br />
Link<br />
ACTS<br />
ERROR<br />
BLOCK;GSFC<br />
Mckinley<br />
OC-12c<br />
<strong>TCP</strong> Host<br />
GSFC<br />
Switch<br />
OC-12<br />
Link<br />
HDRT<br />
OC-12<br />
Link<br />
Figure 8: Simulation model for experimental scenario 2, OC-12 satellite connectivity.<br />
trafc shaping is present) <strong>and</strong> a block accommodating three <strong>TCP</strong>/<strong>ATM</strong> hosts in<br />
order to be able to accept data from them. The connection paths between the<br />
source <strong>and</strong> receiver blocks are established through the "KU <strong>ATM</strong> Switch" block<br />
using connection identiers, which are equivalent to the virtual circuit identiers<br />
(VCI) used in the experiments, <strong>and</strong> treated at the receiving end with the use <strong>of</strong><br />
a FIFO queue with a server which allows <strong>TCP</strong> packets to pass through towards<br />
the specied receiver <strong>TCP</strong>/<strong>ATM</strong> host at specic time intervals, specied by the<br />
<strong>TCP</strong> processing time.<br />
The probability with which cells are passing through is<br />
calculated for this model by equation 4, <strong>and</strong> is passed as a parameter in the error<br />
block located on the downlink satellite path,<br />
P error free cells =(1,BER) (Cell Size) bits<br />
(4)
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