目錄
一 .安裝Floodlight
1.下載源和相關工具
#tools
sudo apt-get install build-essential ant python-dev
git clone git://github.com/floodlight/floodlight.git
2.安裝（注意，需要java1.8，否則報錯）
cd floodlight
ant
sudo mkdir /var/lib/floodlight
sudo chmod 777 /var/lib/floodlight
輸出如下
3.嘗試游覽器訪問管理界面
啟動floodlight
java -jar target/floodlight.jar
游覽器訪問
http://localhost:8080/ui/index.html
如果報錯
此時shell可能都是
Sending LLDP packets out of all the enabled ports
4.修復查看不了floodlight
git pull origin master
git submodule init
git submodule update
ant
編譯完成后重啟floodlight
java -jar target/floodlight.jar
再游覽器訪問
如果路徑錯誤(如下圖，就把target下floodlight.jar復制到flootlight根目錄下再嘗試)
二.Mininet自定義拓撲圖(需要先把剛才的floodlight關閉)
fattree.py（ip指的是自己的主機ip）
#!/usr/bin/python
#創建網絡拓撲
"""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() ) }
運行floodlight出現port占用需要換一個,類似下面
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')
#運行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指定虛擬主機的mac地址順序編號，若不帶此參數則隨機編號
--controller指定of交換機的控制器
--switch指定虛擬交換機的類型，ovsk表示虛擬交換機為ovs Kernel mode
--custom指定自定義拓撲文件
--topo指定加載拓撲的名字
打開floodlight管理界面，成功
查看拓撲圖
三.Sample
改寫昨天寫的一個例子(https://www.cnblogs.com/FlyerBird/p/10453772.html#x02-sample)，把參數寫到里面，就不用手寫了,ip指的是自己的主機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()
運行floodlight查看
java -jar floodlight.jar
和想的一樣，OK
PS
記得net.stop()
Shell控制命令：
command& #讓進程在后台運行
jobs #查看后台運行的進程
fg %pid #讓后台運行(stopped的)的進程n到前台來,只是暫停了一個命令，可以直接使用fg來繼續執行
bg %pid #讓進程n到后台去；