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iot_sdn.py
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iot_sdn.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
edgeServer = self.addHost( 'h1' )
internet = self.addHost( 'h2' )
Host1 = self.addHost( 'h3' )
Host2 = self.addHost( 'h4' )
Host3 = self.addHost( 'h5' )
Host4 = self.addHost( 'h6' )
Host5 = self.addHost( 'h7' )
Host6 = self.addHost( 'h8' )
Host7 = self.addHost( 'h9' )
Host8 = self.addHost( 'h10' )
Host9 = self.addHost( 'h11' )
Host10 = self.addHost( 'h12' )
Host11 = self.addHost( 'h13' )
Host12 = self.addHost( 'h14' )
coreSwitch = self.addSwitch( 's1' )
disSwitch1 = self.addSwitch( 's2' )
disSwitch2 = self.addSwitch( 's3' )
accSwitch1 = self.addSwitch( 's4' )
accSwitch2 = self.addSwitch( 's5' )
accSwitch3 = self.addSwitch( 's6' )
accSwitch4 = self.addSwitch( 's7' )
# Add links
self.addLink( edgeServer, coreSwitch)
self.addLink( internet, coreSwitch)
self.addLink( coreSwitch, disSwitch1 )
self.addLink( coreSwitch, disSwitch2 )
self.addLink( disSwitch1, disSwitch2 )
self.addLink( disSwitch1, accSwitch1 )
self.addLink( disSwitch1, accSwitch2 )
self.addLink( disSwitch2, accSwitch3 )
self.addLink( disSwitch2, accSwitch4 )
self.addLink( accSwitch1, Host1 )
self.addLink( accSwitch1, Host2 )
self.addLink( accSwitch1, Host3 )
self.addLink( accSwitch2, Host4 )
self.addLink( accSwitch2, Host5 )
self.addLink( accSwitch2, Host6 )
self.addLink( accSwitch3, Host7 )
self.addLink( accSwitch3, Host8 )
self.addLink( accSwitch3, Host9 )
self.addLink( accSwitch4, Host10 )
self.addLink( accSwitch4, Host11 )
self.addLink( accSwitch4, Host12 )
topos = { 'mytopo': ( lambda: MyTopo() ) }