以前我使用以下命令创建了 mininet 拓扑:
sudo mn --topo tree,depth=2,fanout=5 --controller=remote,ip=10.0.0.1,port=6633 --switch ovsk,protocols=OpenFlow13, --link tc,bw=1,delay=10ms
我需要bw
为不同的链接指定自定义值。
如何以通用方式制作树,指定此处提到depth
的fanout
值?我将需要修改创建的树的链接。TreeNet
setLink(int value, src, dest)
直到现在我有这个:
#!/usr/bin/python
from functools import partial
from mininet.cli import CLI
from mininet.link import TCLink
from mininet.log import setLogLevel
from mininet.net import Mininet
from mininet.node import OVSKernelSwitch
from mininet.node import RemoteController
from mininet.topo import Topo
from mininet.util import dumpNodeConnections
class MyNet( Topo ):
def __init__( self ):
"Create custom topo."
# Initialize topology
Topo.__init__( self )
# Add hosts
h1 = self.addHost( 'h1' )
h2 = self.addHost( 'h2' )
...
h25 = self.addHost( 'h25' )
# Add switches
s1 = self.addSwitch( 's1' )
...
s6 = self.addSwitch( 's6' )
# Add links
self.addLink( s2, s1 ,bw=10)
self.addLink( s3, s1 ,bw=10)
self.addLink( s4, s1 ,bw=10)
self.addLink( s5, s1 ,bw=10)
self.addLink( s6, s1 ,bw=10)
self.addLink( h1, s2 ,bw=10)
self.addLink( h2, s2 ,bw=10)
self.addLink( h3, s2 ,bw=10)
self.addLink( h4, s2 ,bw=10)
self.addLink( h5, s2 ,bw=10)
self.addLink( h6, s3 ,bw=10)
self.addLink( h7, s3 ,bw=10)
self.addLink( h8, s3 ,bw=10)
self.addLink( h9, s3 ,bw=10)
self.addLink( h10, s3 ,bw=10)
self.addLink( h11, s4 ,bw=10)
...
self.addLink( h25, s6 ,bw=10)
topos = { 'MyNet': ( lambda: MyNet() ) }
我打电话使用:
#sudo mn --custom MyNet.py --topo MyNet --controller=remote,ip=10.0.0.1,port=6633 --switch ovsk,protocols=OpenFlow13 --link tc