3
0.00 0.05 0.95      0.00  12.0   4.15
0.00 0.05 0.95      0.00  12.0   2.90
1.00 0.00 0.00      0.00  0.00   0.00

The following comments will be ignored by the PA program.

The above matrices are the transition sequence probability matrix
and the transition sequence delay matrix for the AB protocol
transmitter. There are three transitions:

t1 - send a packet
t2 - time out and resend
t3 - get an acknowledgement

Thus, t1 and t2 are both followed by t2 with probability 0.05 (and
delay of 12 units) and followed by t3 with probability 0.95 (and
delays of 4.15 and 2.9 time units respectively).

Executing PA -A will print out various information. The last three
figures shown (labelled X1, X2 and X3) have the values:

X1 = 0.212
X2 = 0.011
X3 = 0.212

These are the throughput rates per unit time of the three
transitions. Thus our throughput rate for the protocol in this
example is 0.212 frames / time unit.


