Hello, I am interested in displaying the contents of Routing Table of
a node running DSDV. For this I carried out the following steps:
1. I declared this function in dsdv.h as a protected member function of
DSDV_Agent class.
void displayrtable(); // display the contents of the routing table
2. Defined displayrtable() method in dsdv.cc as above.
void DSDV_Agent::displayrtable() {
rtable_ent *ent;
int desti, next, metric, sqnum;
printf("======================== Routing table
=============================\n\n");
printf("Destination\tNext-hop\tMetric\tSequence Number\n");
for(table_->InitLoop (); (ent = table_->NextLoop ());){
desti = ent->dst;
next = ent->hop;
metric = ent->metric;
sqnum = ent->seqnum;
printf("%10d\t%10d\t%-10d\t%-10d\n",desti,next,metric,sqnum);
} //end for
}// end displayrtable()
3.Told dsdv when to invoke dsplayrtable() in command() method.
if(strcmp (argv[1], "displayrtable") == 0)
{
displayrtable();
return (TCL_OK);
}
4. Invoked displayrtable in TCl.
set dsdv [new Agent/DSDV]
$ns at 3.5 "$dsdv displayrtable"
output==>
num_nodes is set 2
INITIALIZE THE LIST xListHead
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_
= 1.5, distCST_ =
179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.0
SORTING LISTS ...DONE!
======================== Routing table =============================
Destination Next-hop Metric Sequence Number
end simulation
>From the output I assume that the control never reaches the 'for' loop's
>body. Kindly highlight any point I am missing.
Best Regards
