{"id":81,"date":"2014-10-06T12:46:42","date_gmt":"2014-10-06T04:46:42","guid":{"rendered":"http:\/\/140.128.102.245\/wordpress\/?p=81"},"modified":"2021-05-04T04:47:37","modified_gmt":"2021-05-04T04:47:37","slug":"mininet%e7%ad%86%e8%a8%98","status":"publish","type":"post","link":"https:\/\/blog.laszlo.tw\/?p=81","title":{"rendered":"Mininet\u7b46\u8a18"},"content":{"rendered":"

Default VM image user\/passwd : mininet\/mininet<\/p>\n

\u555f\u52d5 mininet \u6a21\u64ec\u7db2\u8def\u74b0\u5883<\/strong><\/p>\n

sudo mn<\/p>\n

<\/p>\n

mn\u74b0\u5883\u4e0b\u6307\u4ee4<\/strong><\/p>\n

nodes\u76ee\u524dfork\u51fa\u4e4b\u7bc0\u9ede( sN:switch hN:host )
\nnet \u76ee\u524d\u6a21\u64ec\u9023\u7dda\u72c0\u614b
\ndump \u865b\u64ec\u7bc0\u9ede\u8a73\u7d30\u72c0\u614b
\n$host_name$ $bash_command \u4ee5\u7bc0\u9ede\u4e0b\u6307\u4ee4(EX: “s1 ifconfig”\u3001”h1 ping h2″ \u3001”h1 ps aux” … )
\npingall \u5404\u7bc0\u9ede\u4e92ping
\niperf \u7bc0\u9ede\u50b3\u8f38\u983b\u5bec\u6e2c\u8a66
\nxterm $host $host2 … Xmode\u4e0b\u958b\u555fhost terminel<\/p>\n

mn\u53c3\u6578<\/strong><\/p>\n

\u74b0\u5883\u6a21\u64ec\u5b8c\u6210\u5f8c\u6e2c\u8a66$mn_command\u4e26\u7d50\u675f\u6a21\u64ec
\nsudo mn – -test $mn_command<\/p>\n

\u4ee5$topo_name\u62d3\u6a38\u5efa\u7acb$number_nodes\u7bc0\u9ede\u6578\u91cf\u4e4b\u6a21\u64ec\u74b0\u5883
\nsudo mn – – topo={$topo_name},$number_nodes
\n$topo_name={ single\u3001linear\u3001tree }<\/p>\n

MAC_address=ID\u6a21\u5f0f
\nsudo mn – -mac<\/p>\n

GUI X Mode
\nsudo mn -x<\/p>\n

\u6307\u5b9aController (default port:6633)
\nsudo mn – -controller=remote,ip=$controller_ip,port=$controller_port<\/p>\n

\u8a0a\u606f\u63a7\u5236<\/strong><\/p>\n

debug\u6a21\u5f0f
\nsudo mn -v debug<\/p>\n

output\u6a21\u5f0f
\nsudo mn -v output<\/p>\n

\u8cc7\u6599\u91cf
\noutput > debug > general<\/p>\n

\u81ea\u8a02\u62d3\u6a38(\u756b\u5716\uff1aswitch\u3001host\u3001link)<\/strong><\/p>\n

\u62d3\u6a38\u7bc4\u4f8b
\ncustom\/topo-2sw-2host.py<\/p>\n

\u57f7\u884c
\nsudo mn – -custom custom\/topo-2sw-2host.py – – topo=mytopo<\/p>\n

10\/26\u66f4\u65b0 : mininet\u9032\u968e\u7528\u6cd5\u7c21\u6613\u74b0\u5883\u7248 ( \u64b0\u5beb\u6210 .py \u5f8c\u4ee5python\u57f7\u884c )<\/strong><\/p>\n

#\u74b0\u5883\u8f09\u5165<\/em>
\n#!\/usr\/bin\/env python2
\nfrom mininet.topo import Topo
\nfrom mininet.net import Mininet
\nfrom mininet.link import TCLink
\nfrom mininet.log import setLogLevel, info
\nfrom mininet.cli import CLI
\nfrom mininet.link import Intf
\nfrom mininet.util import dumpNodeConnections
\nREMOTE_CONTROLLER_IP=”192.168.18.151″
\ndef MininetTopo():
\nnet = Mininet (topo=None, build=False)<\/p>\n

#\u8a2d\u5b9aController<\/em>
\ncontroller =net.addController(name=’controller0′,
\ncontroller=RemoteController,
\nip=REMOTE_CONTROLLER_IP,
\nport=6633)<\/p>\n

#\u7522\u751fSwitchs<\/em>
\ninfo(“Create Switch node\\n”)
\nswitch = net.addSwitch(‘s1’)<\/p>\n

#\u7522\u751fHosts<\/em>
\ninfo(“Create Host node\\n”)
\n<\/span>host1 = net.addHost(‘h1′, ip=’10.0.0.1’)
\n<\/span>host2 = net.addHost(‘h2′, ip=’10.0.0.2’)<\/span><\/p>\n

#\u7522\u751fLINKs<\/em>
\ninfo(“Link switch to host\\n”)
\nnet.addLink(switch, host1)
\nnet.addLink(switch, host2)<\/p>\n

#\u555f\u52d5<\/em>
\ninfo(“Start network\\n”)
\nnet.start()<\/p>\n

#\u589e\u52a0Flow<\/em>
\ninfo(“Adding Flow\\n”)
\nswitch.cmdPrint(‘ovs-ofctl add-flow s1 in_port=1,actions=output:2’)
\nswitch.cmdPrint(‘ovs-ofctl add-flow s1 in_port=2,actions=output:1’)<\/p>\n

#Mininet CLI\u555f\u52d5<\/em>
\nCLI(net)<\/p>\n

#MininetCLI\u7d50\u675f<\/em>
\nnet.stop()<\/p>\n

if __name__ == ‘__main__’:
\nsetLogLevel(‘info’)
\nMininetTopo()<\/p>\n","protected":false},"excerpt":{"rendered":"

Default VM image user\/pas<\/p>\n

\u95b1\u8b80\u5168\u6587Mininet\u7b46\u8a18<\/span><\/a><\/div>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[5],"tags":[85,81,92],"class_list":["post-81","post","type-post","status-publish","format-standard","hentry","category-mininet","tag-cmd","tag-mininet","tag-sdn","entry"],"_links":{"self":[{"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=\/wp\/v2\/posts\/81","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=81"}],"version-history":[{"count":6,"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=\/wp\/v2\/posts\/81\/revisions"}],"predecessor-version":[{"id":1207,"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=\/wp\/v2\/posts\/81\/revisions\/1207"}],"wp:attachment":[{"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=81"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=81"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.laszlo.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}