Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 1 | #!/usr/bin/python |
| 2 | |
| 3 | import os |
| 4 | from optparse import OptionParser |
| 5 | |
| 6 | from mininet.net import Mininet |
| 7 | from mininet.topo import Topo |
Flavio Castro | e168f7f | 2016-06-24 15:53:12 -0700 | [diff] [blame] | 8 | from mininet.node import RemoteController, UserSwitch, Host, OVSBridge |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 9 | from mininet.link import TCLink |
| 10 | from mininet.log import setLogLevel |
| 11 | from mininet.cli import CLI |
| 12 | |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 13 | |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 14 | # Parse command line options and dump results |
| 15 | def parseOptions( ): |
| 16 | """Parse command line options""" |
| 17 | parser = OptionParser( ) |
| 18 | parser.add_option( '--spine', dest='spine', type='int', default=2, |
| 19 | help='number of spine switches, default=2' ) |
| 20 | parser.add_option( '--leaf', dest='leaf', type='int', default=2, |
| 21 | help='number of leaf switches, default=2' ) |
| 22 | parser.add_option( '--fanout', dest='fanout', type='int', default=2, |
| 23 | help='number of hosts per leaf switch, default=2' ) |
| 24 | parser.add_option( '--onos', dest='onos', type='int', default=0, |
| 25 | help='number of ONOS Instances, default=0, 0 means localhost, 1 will use OC1 and so on' ) |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 26 | (options, args) = parser.parse_args( ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 27 | return options, args |
| 28 | |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 29 | |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 30 | opts, args = parseOptions( ) |
| 31 | |
| 32 | |
| 33 | class LeafAndSpine( Topo ): |
| 34 | def __init__( self, spine=2, leaf=2, fanout=2, **opts ): |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 35 | "Create Leaf and Spine Topo." |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 36 | Topo.__init__( self, **opts ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 37 | # Add spine switches |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 38 | spines = { } |
Flavio Castro | e168f7f | 2016-06-24 15:53:12 -0700 | [diff] [blame] | 39 | leafs = { } |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 40 | for s in range( spine ): |
| 41 | spines[ s ] = self.addSwitch( 'spine10%s' % (s + 1), |
| 42 | dpid="00000000010%s" % (s + 1) ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 43 | # Set link speeds to 100Mb/s |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 44 | linkopts = dict( bw=100 ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 45 | # Add Leaf switches |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 46 | for ls in range( leaf ): |
Flavio Castro | e168f7f | 2016-06-24 15:53:12 -0700 | [diff] [blame] | 47 | leafs[ ls ] = self.addSwitch( 'leaf%s' % (ls + 1), |
| 48 | dpid="00000000000%s" % (1 + ls) ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 49 | # Connect leaf to all spines |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 50 | for s in range( spine ): |
| 51 | switch = spines[ s ] |
Flavio Castro | e168f7f | 2016-06-24 15:53:12 -0700 | [diff] [blame] | 52 | self.addLink( leafs[ ls ], switch, **linkopts ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 53 | # Add hosts under a leaf, fanout hosts per leaf switch |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 54 | for f in range( fanout ): |
| 55 | host = self.addHost( 'h%s' % (ls * fanout + f + 1), |
| 56 | cls=IpHost, |
| 57 | ip='10.0.%s.%s/24' % ((ls + 1), (f + 1)), |
| 58 | gateway='10.0.%s.254' % (ls + 1) ) |
Flavio Castro | e168f7f | 2016-06-24 15:53:12 -0700 | [diff] [blame] | 59 | self.addLink( host, leafs[ ls ], **linkopts ) |
| 60 | # Add Xconnect simulation |
| 61 | br1 = self.addSwitch( 'br1', cls=OVSBridge ) |
| 62 | self.addLink( br1, leafs[ 0 ], **linkopts ) |
| 63 | for vid in [ 5, 10 ]: |
| 64 | olt = self.addHost( 'olt%s' % vid, cls=VLANHost, vlan=vid, |
| 65 | ip="10.%s.0.1/24" % vid |
| 66 | , mac="00:00:%02d:00:00:01" % vid ) |
| 67 | vsg = self.addHost( 'vsg%s' % vid, cls=VLANHost, vlan=vid, |
| 68 | ip="10.%s.0.2/24" % vid |
| 69 | , mac="00:00:%02d:00:00:02" % vid ) |
| 70 | self.addLink( olt, leafs[ 0 ], **linkopts ) |
| 71 | self.addLink( vsg, br1, **linkopts ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 72 | |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 73 | |
| 74 | class IpHost( Host ): |
| 75 | def __init__( self, name, gateway, *args, **kwargs ): |
| 76 | super( IpHost, self ).__init__( name, *args, **kwargs ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 77 | self.gateway = gateway |
| 78 | |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 79 | def config( self, **kwargs ): |
| 80 | Host.config( self, **kwargs ) |
| 81 | mtu = "ifconfig " + self.name + "-eth0 mtu 1490" |
| 82 | self.cmd( mtu ) |
| 83 | self.cmd( 'ip route add default via %s' % self.gateway ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 84 | |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 85 | |
Flavio Castro | e168f7f | 2016-06-24 15:53:12 -0700 | [diff] [blame] | 86 | class VLANHost( Host ): |
| 87 | "Host connected to VLAN interface" |
| 88 | |
| 89 | def config( self, vlan=100, **params ): |
| 90 | """Configure VLANHost according to (optional) parameters: |
| 91 | vlan: VLAN ID for default interface""" |
| 92 | r = super( VLANHost, self ).config( **params ) |
| 93 | intf = self.defaultIntf( ) |
| 94 | # remove IP from default, "physical" interface |
| 95 | self.cmd( 'ifconfig %s inet 0' % intf ) |
| 96 | intf = self.defaultIntf( ) |
| 97 | # create VLAN interface |
| 98 | self.cmd( 'vconfig add %s %d' % (intf, vlan) ) |
| 99 | self.cmd( 'ifconfig %s.%d %s' % (intf, vlan, params[ 'ip' ]) ) |
| 100 | # update the intf name and host's intf map |
| 101 | self.cmd( 'ifconfig %s.%d mtu 1480' % (intf, vlan) ) |
| 102 | newName = '%s.%d' % (intf, vlan) |
| 103 | # update the (Mininet) interface to refer to VLAN interface name |
| 104 | intf.name = newName |
| 105 | # add VLAN interface to host's name to intf map |
| 106 | self.nameToIntf[ newName ] = intf |
| 107 | |
| 108 | |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 109 | def config( opts ): |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 110 | spine = opts.spine |
| 111 | leaf = opts.leaf |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 112 | fanout = opts.fanout |
| 113 | controllers = [ os.environ[ 'OC%s' % i ] for i in |
| 114 | range( 1, opts.onos + 1 ) ] if (opts.onos) else [ |
| 115 | '127.0.0.1' ] |
| 116 | topo = LeafAndSpine( spine=spine, leaf=leaf, fanout=fanout ) |
| 117 | net = Mininet( topo=topo, link=TCLink, build=False, |
Flavio Castro | e168f7f | 2016-06-24 15:53:12 -0700 | [diff] [blame] | 118 | switch=UserSwitch, controller=None, autoSetMacs=True ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 119 | i = 0 |
| 120 | for ip in controllers: |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 121 | net.addController( "c%s" % (i), controller=RemoteController, ip=ip ) |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 122 | i += 1; |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 123 | net.build( ) |
| 124 | net.start( ) |
| 125 | CLI( net ) |
| 126 | net.stop( ) |
| 127 | |
Flavio Castro | cc38a54 | 2016-03-03 13:15:46 -0800 | [diff] [blame] | 128 | |
| 129 | if __name__ == '__main__': |
Flavio Castro | 5608a39 | 2016-06-22 17:02:35 -0700 | [diff] [blame] | 130 | setLogLevel( 'info' ) |
| 131 | config( opts ) |
| 132 | os.system( 'sudo mn -c' ) |