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[ns] modify trace.cc file




Hi,

A similation : 6 nodes, 45Mbps links, 1300 On_Off voice traffic
flows, time 60 second.

Target: to get performance data for flow 0 and 1.

To minimize the output trace file, I added following line in trace.cc
file:

if(iph->flowid() < 2){ /* Li chengzhi for traget traffic trace */

        if (!show_tcphdr_) {
            sprintf(wrk_, "%c %g %d %d %s %d %s %d %s%s %s%s %d %d",
            .....
}/*LI chengzhi traget traffic file */

But, the output file looks very strange, many duplications:

+ 0.793108 0 1 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793128 0 1 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.793108 0 1 exp 100 ------- 1 0.1 6.1 0 25016
r 0.793145 0 1 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793128 0 1 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.793108 0 1 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.793108 0 1 exp 100 ------- 1 0.1 6.1 0 25016
r 0.793145 0 1 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793128 0 1 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.793108 0 1 exp 100 ------- 1 0.1 6.1 0 25016
r 0.793145 0 1 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793128 0 1 exp 100 ------- 1 0.1 6.1 0 25016
r 0.793145 0 1 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793128 0 1 exp 100 ------- 1 0.1 6.1 0 25016
r 0.793145 0 1 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.793108 0 1 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793128 0 1 exp 100 ------- 1 0.1 6.1 0 25016
r 0.793145 0 1 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.79324 4 5 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793258 4 5 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.79324 4 5 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.79324 4 5 exp 100 ------- 1 0.1 6.1 0 25016
r 0.793276 4 5 exp 100 ------- 1 0.1 6.1 0 25016
- 0.793258 4 5 exp 100 ------- 1 0.1 6.1 0 25016
+ 0.79324 4 5 exp 100 ------- 1 0.1 6.1 0 25016

Do I make some mistake ior miss something?

Thank you in advance.

Sincerely,

Chengzhi Li