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web_topo.py
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web_topo.py
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"""Custom topology example
Two directly connected switches plus a host for each switch:
host --- switch --- switch --- host
Adding the 'topos' dict with a key/value pair to generate our newly defined
topology enables one to pass in '--topo=mytopo' from the command line.
"""
from mininet.topo import Topo
class MyTopo( Topo ):
"Simple topology example."
def __init__( self ):
"Create custom topo."
# Initialize topology
Topo.__init__( self )
# Add hosts and switches
leftTopHost = self.addHost( 'hl1' )
leftMidHost = self.addHost( 'hl2' )
leftBotHost = self.addHost( 'hl3' )
rightTopHost = self.addHost( 'hr1' )
rightMidHost = self.addHost( 'hr2' )
rightBotHost = self.addHost( 'hr3' )
leftTopSwitch = self.addSwitch( 's11' )
leftMidSwitch = self.addSwitch( 's12' )
leftBotSwitch = self.addSwitch( 's13' )
midTopSwitch = self.addSwitch( 's21' )
midMidSwitch = self.addSwitch( 's22' )
midBotSwitch = self.addSwitch( 's23' )
rightTopSwitch = self.addSwitch( 's31' )
rightMidSwitch = self.addSwitch( 's32' )
rightBotSwitch = self.addSwitch( 's33' )
# Add links
self.addLink( leftTopHost, leftTopSwitch )
self.addLink( leftMidHost, leftMidSwitch )
self.addLink( leftBotHost, leftBotSwitch )
self.addLink( rightTopHost, rightTopSwitch )
self.addLink( rightMidHost, rightMidSwitch )
self.addLink( rightBotHost, rightBotSwitch )
self.addLink( leftTopSwitch, midTopSwitch )
self.addLink( leftMidSwitch, midTopSwitch )
self.addLink( leftBotSwitch, midTopSwitch )
self.addLink( leftTopSwitch, midMidSwitch )
self.addLink( leftMidSwitch, midMidSwitch )
self.addLink( leftBotSwitch, midMidSwitch )
self.addLink( leftTopSwitch, midBotSwitch )
self.addLink( leftMidSwitch, midBotSwitch )
self.addLink( leftBotSwitch, midBotSwitch )
self.addLink( leftTopSwitch, leftMidSwitch)
self.addLink( leftMidSwitch, leftBotSwitch)
self.addLink( leftTopSwitch, leftBotSwitch)
self.addLink( rightTopSwitch, rightMidSwitch)
self.addLink( rightMidSwitch, rightBotSwitch)
self.addLink( rightTopSwitch, rightBotSwitch)
self.addLink( rightTopSwitch, midTopSwitch )
self.addLink( rightMidSwitch, midTopSwitch )
self.addLink( rightBotSwitch, midTopSwitch )
self.addLink( rightTopSwitch, midMidSwitch )
self.addLink( rightMidSwitch, midMidSwitch )
self.addLink( rightBotSwitch, midMidSwitch )
self.addLink( rightTopSwitch, midBotSwitch )
self.addLink( rightMidSwitch, midBotSwitch )
self.addLink( rightBotSwitch, midBotSwitch )
topos = { 'mytopo': ( lambda: MyTopo() ) }