SDN第三次上机作业
1.创建以下拓扑（可采用任意方式）
#!/user/bin/python
from mininet.topo import Topo
class topo1(Topo):
def __init__(self):
Topo.__init__(self)
s1 = self.addSwitch(\'s1\')
s2 = self.addSwitch(\'s2\')
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(h1, s1)
self.addLink(h2, s1)
self.addLink(h3, s1)
self.addLink(h4, s2)
self.addLink(h5, s2)
self.addLink(h6, s2)
self.addLink(s1, s2)
topos = {"topo1": (lambda: topo1())}
2.利用OVS命令下发流表，实现VLAN功能
3.利用OVS命令查看流表
4.验证连通性
5.Wireshark抓包验证
