All、Select、Indirect以及Fast Failover等四種，以下分別加以介紹：
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cd ovs-testcd lab3python group-select.pyxterm h1 h2chmod +x rule.sh./rule.shovs-ofctl dump-flows -O OpenFlow13 s1ovs-ofctl dump-groups -O OpenFlow13 s1ovs-ofctl dump-ports -O OpenFlow13 s1iperf -s -i 1iperf -s -i 1 -uiperf -c 10.0.0.2 -t 100iperf -c 10.0.0.2 -t 100 -u -b 1Mexitcd ..cd lab4python group-failover.pyxterm h1 h2link s1 s2 downlink s1 s2 upchmod +x rules.sh./rules.shovs-ofctl dump-flows -O OpenFlow13 s1ovs-ofctl dump-groups -O OpenFlow13 s1ovs-ofctl dump-ports -O OpenFlow13 s1ovs-ofctl dump-ports -O OpenFlow13 s1ovs-ofctl dump-ports -O OpenFlow13 s1iperf -s -i 1 -uiperf -c 10.0.0.2 -t 100 -u -b 1Mexitcd ..cd lab5python group-chaining.pyxterm h1 h2 h1 h2chmod +x rules.sh./rules.shovs-ofctl dump-flows -O OpenFlow13 s1ovs-ofctl dump-groups -O OpenFlow13 s1ovs-ofctl dump-ports -O OpenFlow13 s1ovs-ofctl mod-port s1 s1-eth2 downovs-ofctl dump-ports -O OpenFlow13 s1iperf -s -i 1 -p 5555iperf -c 10.0.0.2 -t 1000 -p 5555iperf -s -i 1 -p 5566iperf -c 10.0.0.2 -t 1000 -p 5566exitcd ..mkdir nfvcd nfvgedit nfv.pycd nfvpython nfv.pyxterm h2 h2h1 ping h2 -c 5h1 curl 10.0.0.2:8080h1 curl 10.0.0.2:80#!/usr/bin/env python
from mininet.cli import CLI
from mininet.net import Mininet
from mininet.link import Link,TCLink,Intf
from mininet.node import Controller,RemoteController
if '__main__' == __name__:
net = Mininet(link=TCLink)
h1 = net.addHost('h1', ip="10.0.0.1/24", mac="00:00:00:00:00:01")
h2 = net.addHost('h2', ip="10.0.0.2/24", mac="00:00:00:00:00:02")
h3 = net.addHost('h3', ip="10.0.0.3/24", mac="00:00:00:00:00:03")
s1 = net.addSwitch('s1')
c0 = net.addController('c0', controller=RemoteController)
net.addLink(h1, s1)
net.addLink(h2, s1)
net.addLink(h3, s1)
net.build()
c0.start()
s1.start([c0])
# rules for s1
h1.cmd("arp -s 10.0.0.2 00:00:00:00:00:02")
h1.cmd("arp -s 10.0.0.3 00:00:00:00:00:03")
h2.cmd("arp -s 10.0.0.1 00:00:00:00:00:01")
h2.cmd("arp -s 10.0.0.3 00:00:00:00:00:03")
h3.cmd("arp -s 10.0.0.1 00:00:00:00:00:01")
h3.cmd("arp -s 10.0.0.2 00:00:00:00:00:02")
h3.cmd("echo 1 > /proc/sys/net/ipv4/ip_forward")
h3.cmd("iptables -A FORWARD -p tcp --destination-port 8080 -j ACCEPT")
h3.cmd("iptables -A FORWARD -p tcp --destination-port 80 -j DROP")
s1.cmd("ovs-ofctl add-flow s1 priority=1,in_port=1,actions=output:2")
s1.cmd("ovs-ofctl add-flow s1 priority=1,in_port=2,actions=output:1")
s1.cmd("ovs-ofctl add-flow s1 priority=10,ip,in_port=1,actions=mod_dl_dst=00:00:00:00:00:03,output:3")
s1.cmd("ovs-ofctl add-flow s1 priority=10,ip,in_port=2,actions=mod_dl_dst=00:00:00:00:00:03,output:3")
s1.cmd("ovs-ofctl add-flow s1 priority=10,ip,in_port=3,nw_dst=10.0.0.2,actions=mod_dl_dst=00:00:00:00:00:02,output:2")
s1.cmd("ovs-ofctl add-flow s1 priority=10,ip,in_port=3,nw_dst=10.0.0.1,actions=mod_dl_dst=00:00:00:00:00:01,output:1")
CLI(net)
net.stop()python -m SimpleHTTPServer 80python -m SimpleHTTPServer 8080