SDN第三次上机作业

创建以下拓扑（可采用任意方式）

创建拓扑代码

#! /usr/bin/python

from mininet.topo import Topo

from mininet.net import Mininet

from mininet.node import RemoteController,CPULimitedHost

from mininet.link import TCLink

class MyTopo(Topo):

    def __init__(self):

        Topo.__init__(self)

    	# add switch

    	sw1 = self.addSwitch('sw1')

    	sw2 = self.addSwitch('sw2')
    
    		# add host

    	h1 = self.addHost('h1')

    	h2 = self.addHost('h2')

    	h3 = self.addHost('h3')

    	h4 = self.addHost('h4')

    	h5 = self.addHost('h5')

    	h6 = self.addHost('h6')

    	self.addLink(sw1, h1, 1, 1)

    	self.addLink(sw1, h2, 2, 1)

    	self.addLink(sw1, h3, 3, 1)  

    	self.addLink(sw2, h4, 1, 1)

    	self.addLink(sw2, h5, 2, 1)

    	self.addLink(sw2, h6, 3, 1)

    	self.addLink(sw1, sw2, 4, 4)

topos = { 'mytopo': ( lambda: MyTopo() ) }

拓扑正确性验证