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Class Topology
Topology instproc node? n {
$self instvar node_
if [info exists node_($n)] {
set ret $node_($n)
} else {
set ret ""
}
set ret
}
Topology instproc init {ns noNodes noRouters} {
$self next
$self instvar node_
for {set i 0} {$i < $noNodes} {incr i} {
set node_(s$i) [$ns node]
set node_(d$i) [$ns node]
}
for {set i 0} {$i < $noRouters} {incr i} {
set node_(r$i) [$ns node]
}
}
Topology instproc set_red_params { redq psize qlim min_th max_th bytes wait gentle} {
$redq set mean_pktsize_ $psize
$redq set limit_ $qlim
$redq set bytes_ $bytes
$redq set wait_ $wait
$redq set gentle_ $gentle
$redq set thresh_ $min_th
$redq set maxthresh_ $max_th
}
Class Topology/netAllUDP -superclass Topology
Topology/netAllUDP instproc init ns {
$self next $ns 1 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 2ms DropTail
$ns duplex-link $node_(d0) $node_(r1) 100Mb 2ms DropTail
$ns simplex-link $node_(r0) $node_(r1) 10Mb 20ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb 20ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
$self set_red_params $redpdq_ 1000 50 10 33 false false true
# $redpdq_ set debug_ true
# $redpdq_ set auto_ true
# $redpdq_ set global_target_ true
# set appropriate queue-limits
# $ns queue-limit $node_(r1) $node_(r2) 25
# $ns queue-limit $node_(r2) $node_(r1) 25
}
Class Topology/netMix -superclass Topology
Topology/netMix instproc init ns {
$self next $ns 3 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 3ms DropTail
$ns duplex-link $node_(s1) $node_(r0) 100Mb 13ms DropTail
$ns duplex-link $node_(s2) $node_(r0) 100Mb 23ms DropTail
$ns duplex-link $node_(d0) $node_(r1) 100Mb 1ms DropTail
$ns duplex-link $node_(d1) $node_(r1) 100Mb 1.5ms DropTail
$ns duplex-link $node_(d2) $node_(r1) 100Mb 2ms DropTail
$ns simplex-link $node_(r0) $node_(r1) 10Mb 10ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb 10ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
$self set_red_params $redpdq_ 1000 50 10 33 true false true
# $redpdq_ set debug_ true
}
Class Topology/netTFRC -superclass Topology
Topology/netTFRC instproc init ns {
$self next $ns 9 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 4ms DropTail
$ns duplex-link $node_(s1) $node_(r0) 100Mb 49ms DropTail
set delay 1
for {set i 0} {$i < 9} {incr i} {
$ns duplex-link $node_(d$i) $node_(r1) 100Mb ${delay}ms DropTail
set delay [expr $delay+0.2]
}
$ns simplex-link $node_(r0) $node_(r1) 10Mb 10ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb 10ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
$self set_red_params $redpdq_ 1000 50 10 33 false false true
# $redpdq_ set debug_ true
}
Class Topology/netAllTCP -superclass Topology
Topology/netAllTCP instproc init ns {
$self next $ns 4 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 9ms DropTail
$ns duplex-link $node_(s1) $node_(r0) 100Mb 29ms DropTail
$ns duplex-link $node_(s2) $node_(r0) 100Mb 49ms DropTail
$ns duplex-link $node_(s3) $node_(r0) 100Mb 69ms DropTail
$ns duplex-link $node_(d0) $node_(r1) 100Mb 1ms DropTail
$ns duplex-link $node_(d1) $node_(r1) 100Mb 2ms DropTail
$ns simplex-link $node_(r0) $node_(r1) 10Mb 10ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb 10ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
$self set_red_params $redpdq_ 1000 100 10 33 false false true
# $redpdq_ set debug_ true
}
# For Web Traffic Simulations
Class Topology/netWeb -superclass Topology
Topology/netWeb instproc init ns {
$self next $ns 5 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 10ms DropTail
$ns duplex-link $node_(s1) $node_(r0) 100Mb 20ms DropTail
$ns duplex-link $node_(s2) $node_(r0) 100Mb 30ms DropTail
$ns duplex-link $node_(s3) $node_(r0) 100Mb 40ms DropTail
$ns duplex-link $node_(s4) $node_(r0) 100Mb 50ms DropTail
$ns duplex-link $node_(d0) $node_(r1) 100Mb 1ms DropTail
$ns duplex-link $node_(d1) $node_(r1) 100Mb 1.2ms DropTail
$ns duplex-link $node_(d2) $node_(r1) 100Mb 1.4ms DropTail
$ns duplex-link $node_(d3) $node_(r1) 100Mb 1.6ms DropTail
$ns duplex-link $node_(d4) $node_(r1) 100Mb 1.8ms DropTail
$ns simplex-link $node_(r0) $node_(r1) 10Mb 1ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb 1ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_ Fid]
$self set_red_params $redpdq_ 500 100 10 33 false false false
#$redpdq_ set debug_ true
return $redpdq_
}
#For multiple congested links
Class Topology/netMulti -superclass Topology
Topology/netMulti instproc init ns {
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_ noLinks_
global topo_para1_
set noLinks_ $topo_para1_
if { $noLinks_ <=0 } {
puts stderr "Invalid number of links $noLinks_"
}
set noNodes $noLinks_
set noRouters [expr $noLinks_+1]
$self next $ns $noNodes $noRouters
for {set i 0} {$i<$noLinks_} {incr i} {
set node_(s1$i) [$ns node]
set node_(s2$i) [$ns node]
set node_(s3$i) [$ns node]
}
set node_(source) [$ns node]
set node_(sink) [$ns node]
#create the necessary connections and stuff
for {set i 0} {$i < $noNodes} {incr i} {
$ns duplex-link $node_(s$i) $node_(r$i) 100Mb 10ms DropTail
$ns duplex-link $node_(s1$i) $node_(r$i) 100Mb 20ms DropTail
$ns duplex-link $node_(s2$i) $node_(r$i) 100Mb 30ms DropTail
$ns duplex-link $node_(s3$i) $node_(r$i) 100Mb 40ms DropTail
set j [expr $i+1]
$ns duplex-link $node_(d$i) $node_(r$j) 100Mb 1ms DropTail
$ns simplex-link $node_(r$i) $node_(r$j) 10Mb 1ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r$j) $node_(r$i) 10Mb 1ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_($i) [$ns link $node_(r$i) $node_(r$j)]
set redpdq_($i) [$redpdlink_($i) queue]
set redpdflowmon_($i) [$redpdq_($i) makeflowmon $redpdlink_($i)]
$self set_red_params $redpdq_($i) 1000 50 10 33 false false false
# $redpdq_($i) set debug_ true
}
set node_(source) [$ns node]
set node_(sink) [$ns node]
set delay [expr 40 - $noLinks_]
$ns duplex-link $node_(source) $node_(r0) 100Mb ${delay}ms DropTail
$ns duplex-link $node_(sink) $node_(r$noLinks_) 100Mb 1ms DropTail
}
Class Topology/netTestFRp -superclass Topology
Topology/netTestFRp instproc init ns {
# puts "In netTestFRp ..."
$self next $ns 6 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
# puts "In netTestFRp ..."
global traf_para1_ traf_para2_ target_rtt_
# puts "Topology parametsrs: $target_rtt_ ftype=$traf_para1_ gamma=$traf_para2_"
switch -exact $traf_para1_ {
"tcp" {
set delay [expr ($target_rtt_/(2*$traf_para2_))*1000]
}
default {
set delay 10
}
}
if { $delay <= 0 } {
puts stderr "Invalid Link Delay"
exit 1
}
# puts stderr "Delay = $delay ms"
for {set i 0} {$i < 5} {incr i} {
$ns duplex-link $node_(s$i) $node_(r0) 1000Mb [expr ${delay}+0.05*$i]ms DropTail
}
$ns duplex-link $node_(d0) $node_(r1) 100Mb 0ms DropTail
$ns simplex-link $node_(r0) $node_(r1) 1000Mb 0ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 1000Mb 0ms DropTail
$self instvar bandwidth_
set bandwidth_ 1000000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
#excessively high values so that pkts are never dropped because of RED dynamics
$self set_red_params $redpdq_ 1000 1000 1000 1000 false false true
# $redpdq_ set debug_ true
#set the P in FRp while running the simulation for fixed drop rate
#(-1 to operate in normal mode).
global topo_para1_
$redpdq_ set P_testFRp_ $topo_para1_
}
Class Topology/netSingleVsMulti -superclass Topology
Topology/netSingleVsMulti instproc init ns {
$self next $ns 5 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 0.2ms DropTail
$ns duplex-link $node_(s1) $node_(r0) 100Mb 0.4ms DropTail
$ns duplex-link $node_(s2) $node_(r0) 100Mb 0.6ms DropTail
$ns duplex-link $node_(s3) $node_(r0) 100Mb 0.8ms DropTail
$ns duplex-link $node_(s4) $node_(r0) 100Mb 1ms DropTail
$ns duplex-link $node_(d0) $node_(r1) 100Mb 1ms DropTail
global topo_para1_
if {$topo_para1_ <= 0} {
puts stderr "Invalid Round Trip Time $traf_para1_"
}
set one_way_delay [expr $topo_para1_*500 - 1]
$ns simplex-link $node_(r0) $node_(r1) 10Mb ${one_way_delay}ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb ${one_way_delay}ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
#RED parameters likely to show a bursty drop behavior
set bw_delay_prod [expr ($one_way_delay+2.0)/(0.4)]
puts "product = $bw_delay_prod"
$self set_red_params $redpdq_ 1000 [expr {$bw_delay_prod/4}] [expr {$bw_delay_prod/8}] \
[expr {$bw_delay_prod/4}] false false true
# $redpdq_ set debug_ true
}
Class Topology/netPktsVsBytes -superclass Topology
Topology/netPktsVsBytes instproc init ns {
$self next $ns 9 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 4ms DropTail
$ns duplex-link $node_(s1) $node_(r0) 100Mb 34ms DropTail
set delay 1
for {set i 0} {$i < 9} {incr i} {
$ns duplex-link $node_(d$i) $node_(r1) 100Mb ${delay}ms DropTail
set delay [expr $delay+0.2]
}
$ns simplex-link $node_(r0) $node_(r1) 10Mb 5ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb 5ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
$self set_red_params $redpdq_ 1000 50 10 33 true false true
# global topo_para1_
# $redpdq_ set P_testFRp_ $topo_para1_
# $redpdq_ set debug_ true
}
Class Topology/netPktsVsBytes1 -superclass Topology
Topology/netPktsVsBytes1 instproc init ns {
$self next $ns 9 2
$self instvar node_ redpdq_ redpdflowmon_ redpdlink_
$ns duplex-link $node_(s0) $node_(r0) 100Mb 4ms DropTail
$ns duplex-link $node_(s1) $node_(r0) 100Mb 34ms DropTail
set delay 1
for {set i 0} {$i < 9} {incr i} {
$ns duplex-link $node_(d$i) $node_(r1) 100Mb ${delay}ms DropTail
set delay [expr $delay+0.2]
}
$ns simplex-link $node_(r0) $node_(r1) 10Mb 5ms RED/PD MEDROP EDROP
$ns simplex-link $node_(r1) $node_(r0) 10Mb 5ms DropTail
$self instvar bandwidth_
set bandwidth_ 10000
set redpdlink_ [$ns link $node_(r0) $node_(r1)]
set redpdq_ [$redpdlink_ queue]
set redpdflowmon_ [$redpdq_ makeflowmon $redpdlink_]
$self set_red_params $redpdq_ 1000 50 10 33 false false true
# global topo_para1_
# $redpdq_ set P_testFRp_ $topo_para1_
# $redpdq_ set debug_ true
}
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