NS2中相互连接的节点对齐

Question

我正在尝试对齐我在网络模拟器2中创建的节点，但是在我编写的代码中出现了一些问题。如何将节点放置在这张图片中？

图片

码：

set ns [new Simulator]
set nf [open out.nam w]
$ns namtrace-all $nf

set n0 [$ns node]
set n1 [$ns node]
set n2 [$ns node]
set n3 [$ns node]
set n4 [$ns node]

$ns duplex-link $n0 $n1 1Mb 10ms DropTail
$ns duplex-link $n0 $n2 1Mb 10ms DropTail
$ns duplex-link $n0 $n3 1Mb 10ms DropTail
$ns duplex-link $n0 $n4 1Mb 10ms DropTail
$ns duplex-link $n1 $n2 1Mb 10ms DropTail
$ns duplex-link $n1 $n3 1Mb 10ms DropTail
$ns duplex-link $n1 $n4 1Mb 10ms DropTail
$ns duplex-link $n2 $n3 1Mb 10ms DropTail
$ns duplex-link $n2 $n4 1Mb 10ms DropTail
$ns duplex-link $n3 $n4 1Mb 10ms DropTail

$ns duplex-link-op $n0 $n1 orient right-down
$ns duplex-link-op $n0 $n3 orient left-down
$ns duplex-link-op $n0 $n2 orient right-down
$ns duplex-link-op $n0 $n4 orient left-down
$ns duplex-link-op $n4 $n3 orient right-down
$ns duplex-link-op $n1 $n2 orient left-down
$ns duplex-link-op $n1 $n4 orient left
$ns duplex-link-op $n2 $n3 orient left
$ns duplex-link-op $n1 $n3 orient left-down
$ns duplex-link-op $n4 $n2 orient right-down

proc finish {} {
    global ns nf
    $ns flush-trace
    close $nf
    exec nam out.nam &
    exit 0
}

$ns at 1.0 "finish"
$ns run

Answer 1

您可以使用像NSG2这样的场景生成器来创建您自己的拓扑。下载NSG2表单这里注意:在运行NSG2 .jar文件之前，必须在NSG2计算机上安装java。

Answer 2

您上传的图像不可用。我从您编写的代码中了解到，如果您想创建一个网络拓扑，如所附的屏幕截图，您可以如下所示编辑您的代码。

set ns [new Simulator]
set nf [open out.nam w]
$ns namtrace-all $nf

set n0 [$ns node]
set n1 [$ns node]
set n2 [$ns node]
set n3 [$ns node]
set n4 [$ns node]

# Create Links between nodes
$ns duplex-link $n0 $n1 1Mb 10ms DropTail
$ns duplex-link $n0 $n2 1Mb 10ms DropTail
$ns duplex-link $n0 $n3 1Mb 10ms DropTail
$ns duplex-link $n0 $n4 1Mb 10ms DropTail

$ns duplex-link $n1 $n2 1Mb 10ms DropTail
$ns duplex-link $n1 $n3 1Mb 10ms DropTail
$ns duplex-link $n1 $n4 1Mb 10ms DropTail

$ns duplex-link $n2 $n3 1Mb 10ms DropTail
$ns duplex-link $n2 $n4 1Mb 10ms DropTail

$ns duplex-link $n3 $n4 1Mb 10ms DropTail

# Orientation of Nodes in Topology
$ns duplex-link-op $n0 $n1 orient right-down
$ns duplex-link-op $n0 $n3 orient left-down
$ns duplex-link-op $n0 $n2 orient right-down
$ns duplex-link-op $n0 $n4 orient left-down



proc finish {} {
    global ns nf
    $ns flush-trace
    close $nf
    exec nam out.nam &
    exit 0
}

$ns at 1.0 "finish"
$ns run

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