ONOS未檢測到使用Mininet創建的網絡中具有多個鏈接的主機

Question

我是Mininet和ONOS的新成員，所以我遇到了非常簡單的問題。在這種情況下，我在Mininet中創建了以下拓撲。

Mininet topology

所生成的腳本如下。

#!/usr/bin/python 

from mininet.net import Mininet 
from mininet.node import Controller, RemoteController, OVSController 
from mininet.node import CPULimitedHost, Host, Node 
from mininet.node import OVSKernelSwitch, UserSwitch 
from mininet.node import IVSSwitch 
from mininet.cli import CLI 
from mininet.log import setLogLevel, info 
from mininet.link import TCLink, Intf 
from subprocess import call 

def myNetwork(): 

    net = Mininet(topo=None, 
        build=False, 
        ipBase='10.0.0.0/8') 

    info('*** Adding controller\n') 
    c0=net.addController(name='c0', 
         controller=RemoteController, 
         protocol='tcp', 
         port=6633) 

    info('*** Add switches\n') 
    s2 = net.addSwitch('s2', cls=OVSKernelSwitch) 
    s3 = net.addSwitch('s3', cls=OVSKernelSwitch) 
    s4 = net.addSwitch('s4', cls=OVSKernelSwitch) 
    s1 = net.addSwitch('s1', cls=OVSKernelSwitch) 

    info('*** Add hosts\n') 
    h15 = net.addHost('h15', cls=Host, ip='10.0.0.15', defaultRoute=None) 
    h8 = net.addHost('h8', cls=Host, ip='10.0.0.8', defaultRoute=None) 
    h9 = net.addHost('h9', cls=Host, ip='10.0.0.9', defaultRoute=None) 
    h10 = net.addHost('h10', cls=Host, ip='10.0.0.10', defaultRoute=None) 
    h11 = net.addHost('h11', cls=Host, ip='10.0.0.11', defaultRoute=None) 
    h16 = net.addHost('h16', cls=Host, ip='10.0.0.16', defaultRoute=None) 
    h2 = net.addHost('h2', cls=Host, ip='10.0.0.2', defaultRoute=None) 
    h3 = net.addHost('h3', cls=Host, ip='10.0.0.3', defaultRoute=None) 
    h4 = net.addHost('h4', cls=Host, ip='10.0.0.4', defaultRoute=None) 
    h12 = net.addHost('h12', cls=Host, ip='10.0.0.12', defaultRoute=None) 
    h5 = net.addHost('h5', cls=Host, ip='10.0.0.5', defaultRoute=None) 
    h13 = net.addHost('h13', cls=Host, ip='10.0.0.13', defaultRoute=None) 
    h1 = net.addHost('h1', cls=Host, ip='10.0.0.1', defaultRoute=None) 
    h6 = net.addHost('h6', cls=Host, ip='10.0.0.6', defaultRoute=None) 
    h14 = net.addHost('h14', cls=Host, ip='10.0.0.14', defaultRoute=None) 
    h7 = net.addHost('h7', cls=Host, ip='10.0.0.7', defaultRoute=None) 

    info('*** Add links\n') 
    net.addLink(h1, s1) 
    net.addLink(h2, s1) 
    net.addLink(h3, s1) 
    net.addLink(h4, s1) 
    net.addLink(h5, s1) 
    net.addLink(h6, s1) 
    net.addLink(h7, s1) 
    net.addLink(h8, s1) 
    net.addLink(h9, s1) 
    net.addLink(h10, s1) 
    net.addLink(h1, s2) 
    net.addLink(h2, s2) 
    net.addLink(h3, s2) 
    net.addLink(h4, s2) 
    net.addLink(h5, s2) 
    net.addLink(h6, s2) 
    net.addLink(h7, s2) 
    net.addLink(h8, s2) 
    net.addLink(h9, s2) 
    net.addLink(h10, s2) 
    net.addLink(h11, s3) 
    net.addLink(h12, s3) 
    net.addLink(h13, s3) 
    net.addLink(s4, h14) 
    net.addLink(s4, h15) 
    net.addLink(s4, h16) 
    net.addLink(s1, s3) 
    net.addLink(s2, s4) 

    info('*** Starting network\n') 
    net.build() 
    info('*** Starting controllers\n') 
    for controller in net.controllers: 
     controller.start() 

    info('*** Starting switches\n') 
    net.get('s2').start([c0]) 
    net.get('s3').start([c0]) 
    net.get('s4').start([c0]) 
    net.get('s1').start([c0]) 

    info('*** Post configure switches and hosts\n') 

    CLI(net) 
    net.stop() 

if __name__ == '__main__': 
    setLogLevel('info') 
    myNetwork() 

但是接着，ONOS顯示以下拓撲。

ONOS topology

我不知道如果我要更改腳本或ONOS東西。我會很感激一個簡單而一步一步的答案，因爲正如我所說，我對這項技術非常新穎。

非常感謝您的幫助。

編輯********************************************* ************************************************** ***************

我編輯了每臺主機上的第二個接口，並給他們一個IP地址爲ifconfig hx-eth1 10.0.0.x，但這並沒有解決問題。 ONOS中的拓撲結構完全相同。以下是我添加到Python腳本中的代碼。

h1.cmd('ifconfig h1-eth1 10.0.0.17') 
h2.cmd('ifconfig h2-eth1 10.0.0.18') 
h3.cmd('ifconfig h3-eth1 10.0.0.19') 
h4.cmd('ifconfig h4-eth1 10.0.0.20') 
h5.cmd('ifconfig h5-eth1 10.0.0.21') 
h6.cmd('ifconfig h6-eth1 10.0.0.22') 
h7.cmd('ifconfig h7-eth1 10.0.0.23') 
h8.cmd('ifconfig h8-eth1 10.0.0.24') 
h9.cmd('ifconfig h9-eth1 10.0.0.25') 
h10.cmd('ifconfig h10-eth1 10.0.0.26') 

Answer 1

ONOS有應用，所以你需要做的事情，如ping這些主機與對方，然後這些主機出現在您的ONOS拓撲結構（用於展示主機檢測主機和基於ARP這個應用程序的工作和DHCP報您的拓撲面板使用shift + H）。

默認情況下，mininet會在每臺主機上選擇一個接口並分配一個IP地址，因此如果主機有多個接口，那麼mininet只會自動將接口分配給其中的一個接口。您必須使用ifconfig等命令手動配置其他接口。

h1 = net.addHost('h1', mac='00:00:00:00:00:01', ip='10.0.0.1/24') 
s4 = net.addSwitch('s4', listenPort=6673, mac='00:00:00:00:00:04') 
s5 = net.addSwitch('s5', listenPort=6674, mac='00:00:00:00:00:05') 
Link(h1, s4, intfName1='h1-eth0') 
Link(h1, s5, intfName1='h1-eth1') 
h1.cmd('ifconfig h1-eth1 10.0.10.1 netmask 255.255.255.0')