hi everyone
I am trying to run the BLUE AQM algorithm in ns-2 using Sunil
thulasidasan's implementation. I followed the instructions but i am getting the
following error:
invalid command name "Queue/Blue"
while executing
"Queue/Blue set drop_front_false
Can anyone help me on this please?
The instruction given for implementing Blue are:
Copy the following files into the c++ directory
blue.h
blue.cc
fairblue.h
fairblue.cc
Add the following lines in ip.h (inside the struct hdr_ip
declaration)
int pmark_; //Marker for unresponsive flows -
used
//by Fairness algos like Fair Blue
Add the following lines in ip.h where the member access functions
are defined
int& pmark() { return (pmark_);
Add the following lines to ns-default.tcl
Queue/Blue set drop_front_ false
Queue/Blue set bytes 0
Queue/Blue set setbit true ;#ECN support turned on by
default
Queue/Blue set decrement 0.00025
Queue/Blue set increment 0.0025
Queue/Blue set dhold-time 100ms
Queue/Blue set ihold-time 100ms
Queue/Blue set dalgorithm 0
Queue/Blue set ialgorithm 0
Queue/Blue set pmark 1
Queue/Blue set pktsize 1000
#For SFB (Stochastic Fair Blue)
Queue/SFB set drop_front_ false
Queue/SFB set bytes 0
Queue/SFB set setbit true ;#ECN support turned on by
default
Queue/SFB set decrement 0.001
Queue/SFB set increment 0.005
Queue/SFB set hold-time 100ms
Queue/SFB set algorithm 0
Queue/SFB set pbox-time 50ms
Queue/SFB set pktsize 1000
Queue/SFB set hinterval 20s ;#hash interval switching
duration
Add the following lines into ns-lib.tcl in the simple-link{}
procedure (look for Simulator instproc simple-link{...} )
#For Blue
if {$qtype == "Blue"} {
$q link [$link_($sid:$did) set link_]
}
#For SFB
if {$qtype == "SFB"} {
$q link [$link_($sid:$did) set link_]
}
Add changes to makefile
Copy test-blue.tcl, test-sfb.tcl (these are the test scripts)
into tcl/test
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