目录
一 .安装Floodlight
1.下载源和相关工具
git clone git://github.com/floodlight/floodlight.git
#tools
sudo apt-get install build-essential ant python-dev2.安装（注意，需要java1.8，否则报错）
cd floodlight
ant输出如下
3.尝试游览器访问管理界面
启动floodlight
java -jar target/floodlight.jar 游览器访问
http://localhost:8080/ui/index.html 如果报错
此时shell可能都是
Sending LLDP packets out of all the enabled ports4.修复查看不了floodlight
git pull origin master
git submodule init
git submodule update
ant编译完成后重启floodlight
java -jar target/floodlight.jar 再游览器访问
如果路径错误(如下图，就把target下floodlight.jar复制到flootlight根目录下再尝试)
二.Mininet自定义拓扑图(需要先把刚才的floodlight关闭)
fattree.py（ip指的是自己的主机ip）
#!/usr/bin/python
#创建网络拓扑
"""Custom topology example
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
from mininet.net import Mininet
from mininet.node import RemoteController,CPULimitedHost
from mininet.link import TCLink
from mininet.util import dumpNodeConnections
class MyTopo( Topo ):
"Simple topology example."
def __init__( self ):
"Create custom topo."
# Initialize topology
Topo.__init__( self )
L1 = 2
L2 = L1 * 2
L3 = L2
c = []
a = []
e = []
# add core ovs
for i in range( L1 ):
sw = self.addSwitch( 'c{}'.format( i + 1 ) )
c.append( sw )
# add aggregation ovs
for i in range( L2 ):
sw = self.addSwitch( 'a{}'.format( L1 + i + 1 ) )
a.append( sw )
# add edge ovs
for i in range( L3 ):
sw = self.addSwitch( 'e{}'.format( L1 + L2 + i + 1 ) )
e.append( sw )
# add links between core and aggregation ovs
for i in range( L1 ):
sw1 = c[i]
for sw2 in a[i/2::L1/2]:
# self.addLink(sw2, sw1, bw=10, delay='5ms', loss=10, max_queue_size=1000, use_htb=True)
self.addLink( sw2, sw1 )
# add links between aggregation and edge ovs
for i in range( 0, L2, 2 ):
for sw1 in a[i:i+2]:
for sw2 in e[i:i+2]:
self.addLink( sw2, sw1 )
#add hosts and its links with edge ovs
count = 1
for sw1 in e:
for i in range(2):
host = self.addHost( 'h{}'.format( count ) )
self.addLink( sw1, host )
count += 1
topos = { 'mytopo': ( lambda: MyTopo() ) }运行floodlight出现port占用需要换一个,类似下面
Exception in thread "debugserver-main" Traceback (most recent call last):
File "<string>", line 1, in <module>
File "__pyclasspath__/debugserver.py", line 69, in run_server
File "/home/lzh/Downloads/floodlight/floodlight.jar/Lib/SocketServer.py", line 331, in __init__
File "/home/lzh/Downloads/floodlight/floodlight.jar/Lib/SocketServer.py", line 350, in server_activate
File "<string>", line 1, in listen
File "/home/lzh/Downloads/floodlight/floodlight.jar/Lib/socket.py", line 934, in listen
socket.error: (98, 'Address already in use')#运行fattree.py
sudo mn --custom /home/lzh/Downloads/mininet/fattree.py --topo mytopo --controller=remote,ip=127.0.0.1,port=6653 --switch ovsk,protocols=OpenFlow10--mac指定虚拟主机的mac地址顺序编号，若不带此参数则随机编号
--controller指定of交换机的控制器
--switch指定虚拟交换机的类型，ovsk表示虚拟交换机为ovs Kernel mode
--custom指定自定义拓扑文件
--topo指定加载拓扑的名字
打开floodlight管理界面，成功
查看拓扑图
三.Sample
改写昨天写的一个例子(https://www.cnblogs.com/FlyerBird/p/10453772.html#x02-sample)，把参数写到里面，就不用手写了,ip指的是自己的主机ip
#!/usr/bin/python
from mininet.topo import Topo
from mininet.net import Mininet
from mininet.util import irange,dumpNodeConnections
from mininet.log import setLogLevel
from mininet.node import RemoteController
from mininet.cli import CLI
class LinearTopo(Topo):
""
"""Linear topology of k switches, with n hosts per switch."""
""
def __init__(self, k=2, n=5,**opts):
"""k:number of switches (and hosts)"""
"""hconf: host configuration options"""
"""lconf: ling configuration options"""
super(LinearTopo, self).__init__(**opts)
self.n = n
self.k = k
"""creates 2 switchs"""
switch1 = self.addSwitch('s1')
switch2 = self.addSwitch('s2')
"""creates h1~h5 and addLink switch1"""
for i in irange(1,n):
host = self.addHost('h%s' %i)
self.addLink(host,switch1)
"""creates h6~h10 and addLink switch2"""
for i in irange(n+1,n+5):
host =self.addHost('h%s' %i)
self.addLink(host,switch2)
"""addLink switch1 and switch2"""
self.addLink(switch1,switch2)
if __name__== '__main__':
# Tell mininet to print useful information
setLogLevel('info')
topo = LinearTopo(k=2,n=5)
net = Mininet( topo=topo, controller=None)
# add a proxy for a controlle which may be running on the control network
net.addController( 'c0', controller=RemoteController, ip='127.0.0.1', port=6653,autoSetMac = True)
#start the network
net.start()
CLI(net)
net.stop()运行floodlight查看
java -jar floodlight.jar和想的一样，OK
PS
记得net.stop()
Shell控制命令：
command& #让进程在后台运行
jobs #查看后台运行的进程
fg %pid #让后台运行(stopped的)的进程n到前台来,只是暂停了一个命令，可以直接使用fg来继续执行
bg %pid #让进程n到后台去；