【正文】 ) $ns connect $udp_(0) $null_(0) 設(shè)定 cbr 開始執(zhí)行時間（下面相同） $ns at $cbr_(0) start 4 connecting to 5 at time set udp_(1) [new Agent/UDP] $ns attachagent $node_(4) $udp_(1) set null_(1) [new Agent/Null] $ns attachagent $node_(5) $null_(1) set cbr_(1) [new Application/Traffic/CBR] $cbr_(1) set packetSize_ 512 $cbr_(1) set interval_ $cbr_(1) set random_ 1 $cbr_(1) set maxpkts_ 10000 $cbr_(1) attachagent $udp_(1) $ns connect $udp_(1) $null_(1) $ns at $cbr_(1) start 4 connecting to 6 at time 16 set udp_(2) [new Agent/UDP] $ns attachagent $node_(4) $udp_(2) set null_(2) [new Agent/Null] $ns attachagent $node_(6) $null_(2) set cbr_(2) [new Application/Traffic/CBR] $cbr_(2) set packetSize_ 512 $cbr_(2) set interval_ $cbr_(2) set random_ 1 $cbr_(2) set maxpkts_ 10000 $cbr_(2) attachagent $udp_(2) $ns connect $udp_(2) $null_(2) $ns at $cbr_(2) start 6 connecting to 7 at time set udp_(3) [new Agent/UDP] $ns attachagent $node_(6) $udp_(3) set null_(3) [new Agent/Null] $ns attachagent $node_(7) $null_(3) set cbr_(3) [new Application/Traffic/CBR] $cbr_(3) set packetSize_ 512 $cbr_(3) set interval_ $cbr_(3) set random_ 1 $cbr_(3) set maxpkts_ 10000 $cbr_(3) attachagent $udp_(3) $ns connect $udp_(3) $null_(3) $ns at $cbr_(3) start 7 connecting to 8 at time set udp_(4) [new Agent/UDP] $ns attachagent $node_(7) $udp_(4) set null_(4) [new Agent/Null] $ns attachagent $node_(8) $null_(4) set cbr_(4) [new Application/Traffic/CBR] $cbr_(4) set packetSize_ 512 $cbr_(4) set interval_ $cbr_(4) set random_ 1 $cbr_(4) set maxpkts_ 10000 $cbr_(4) attachagent $udp_(4) $ns connect $udp_(4) $null_(4) $ns at $cbr_(4) start 7 connecting to 9 at time set udp_(5) [new Agent/UDP] $ns attachagent $node_(7) $udp_(5) set null_(5) [new Agent/Null] $ns attachagent $node_(9) $null_(5) set cbr_(5) [new Application/Traffic/CBR] $cbr_(5) set packetSize_ 512 $cbr_(5) set interval_ 17 $cbr_(5) set random_ 1 $cbr_(5) set maxpkts_ 10000 $cbr_(5) attachagent $udp_(5) $ns connect $udp_(5) $null_(5) $ns at $cbr_(5) start 8 connecting to 9 at time set udp_(6) [new Agent/UDP] $ns attachagent $node_(8) $udp_(6) set null_(6) [new Agent/Null] $ns attachagent $node_(9) $null_(6) set cbr_(6) [new Application/Traffic/CBR] $cbr_(6) set packetSize_ 512 $cbr_(6) set interval_ $cbr_(6) set random_ 1 $cbr_(6) set maxpkts_ 10000 $cbr_(6) attachagent $udp_(6) $ns connect $udp_(6) $null_(6) $ns at $cbr_(6) start 9 connecting to 10 at time set udp_(7) [new Agent/UDP] $ns attachagent $node_(9) $udp_(7) set null_(7) [new Agent/Null] $ns attachagent $node_(10) $null_(7) set cbr_(7) [new Application/Traffic/CBR] $cbr_(7) set packetSize_ 512 $cbr_(7) set interval_ $cbr_(7) set random_ 1 $cbr_(7) set maxpkts_ 10000 $cbr_(7) attachagent $udp_(7) $ns connect $udp_(7) $null_(7) $ns at $cbr_(7) start 9 connecting to 11 at time set udp_(8) [new Agent/UDP] $ns attachagent $node_(9) $udp_(8) set null_(8) [new Agent/Null] $ns attachagent $node_(11) $null_(8) set cbr_(8) [new Application/Traffic/CBR] $cbr_(8) set packetSize_ 512 $cbr_(8) set interval_ $cbr_(8) set random_ 1 $cbr_(8) set maxpkts_ 10000 $cbr_(8) attachagent $udp_(8) $ns connect $udp_(8) $null_(8) $ns at $cbr_(8) start 11 connecting to 12 at time 18 set udp_(9) [new Agent/UDP] $ns attachagent $node_(11) $udp_(9) set null_(9) [new Agent/Null] $ns attachagent $node_(12) $null_(9) set cbr_(9) [new Application/Traffic/CBR] $cbr_(9) set packetSize_ 512 $cbr_(9) set interval_ $cbr_(9) set random_ 1 $cbr_(9) set maxpkts_ 10000 $cbr_(9) attachagent $udp_(9) $ns connect $udp_(9) $null_(9) $ns at $cbr_(9) start 11 connecting to 13 at time set udp_(10) [new Agent/UDP] $ns attachagent $node_(11) $udp_(10) set null_(10) [new Agent/Null] $ns attachagent $node_(13) $null_(10) set cbr_(10) [new Application/Traffic/CBR] $cbr_(10) set packetSize_ 512 $cbr_(10) set interval_ $cbr_(10) set random_ 1 $cbr_(10) set maxpkts_ 10000 $cbr_(10) attachagent $udp_(10) $ns connect $udp_(10) $null_(10) $ns at $cbr_(10) start 13 connecting to 14 at time set udp_(11) [new Agent/UDP] $ns attachagent $node_(13) $udp_(11) set null_(11) [new Agent/Null] $ns attachagent $node_(14) $null_(11) set cbr_(11) [new Application/Traffic/CBR] $cbr_(11) set packetSize_ 512 $cbr_(11) set interval_ $cbr_(11) set random_ 1 $cbr_(11) set maxpkts_ 10000 $cbr_(11) attachagent $udp_(11) $ns connect $udp_(11) $null_(11) $ns at $cbr_(11) start 14 connecting to 15 at time set udp_(12) [new Agent/UDP] $ns attachagent $node_(14) $udp_(12) set null_(12) [new Agent/Null] $ns attachagent $node_(15) $null_(12) set cbr_(12) [new Application/Traffic/CBR] $cbr_(12) set packetSize_ 512 $cbr_(12) set interval_ $cbr_(12) set random_ 1 19 $cbr_(12) set maxpkts_ 10000 $cbr_(12) attachagent $udp_(12) $ns connect $udp_(12) $null_(12) $ns at $cbr_(12) start 15 connecting to 16 at time set udp_(13) [new Agent/UDP] $ns attachagent $node_(15) $udp_(13) set null_(13) [new Agent/Null] $ns attachagent $node_(16) $null_(13) set cbr_(13) [new Application/Traffic/CBR] $cbr_(13) set packetSize_ 512 $cbr_(13) set interval_ $cbr_(13) set random_ 1 $cbr_(13) set maxpkts_ 10000 $cbr_(13) attachagent $udp_(13) $ns connect $udp_(13) $null_(13) $ns at $cbr_(13) start 15 connecting to 17 at time set udp_(14) [new Agent/UDP] $ns attachagent $node_(15) $udp_(14) set null_(14) [new Agent/Null] $ns attachagent $node_(17) $null_(14) set cbr_(14) [new Application/Traffic/CBR] $cbr_(14) set packetSize_ 512