| #!/usr/bin/python |
| import os |
| import re |
| from optparse import OptionParser |
| from ipaddress import ip_network |
| from mininet.node import RemoteController, OVSBridge, Host |
| from mininet.link import TCLink |
| from mininet.log import setLogLevel |
| from mininet.net import Mininet |
| from mininet.topo import Topo |
| from mininet.nodelib import NAT |
| from mininet.cli import CLI |
| |
| from routinglib import BgpRouter, RoutedHost |
| from trellislib import DhcpServer, TaggedRoutedHost, DualHomedRoutedHost, DualHomedTaggedRoutedHost, DhcpClient, Dhcp6Client, DhcpServer, Dhcp6Server |
| |
| # Parse command line options and dump results |
| def parseOptions(): |
| "Parse command line options" |
| parser = OptionParser() |
| parser.add_option( '--dhcp', dest='dhcp', type='int', default=0, |
| help='Configure hosts with dhcp or not' ) |
| parser.add_option( '--routers', dest='routers', type='int', default=0, |
| help='Configure external routers or not in the topology' ) |
| parser.add_option( '--ipv6', dest='ipv6', type='int', default=0, |
| help='Configure hosts with ipv6 or not' ) |
| parser.add_option( '--ipv4', dest='ipv4', type='int', default=1, |
| help='Configure hosts with ipv4 or not' ) |
| parser.add_option( '--onos-ip', dest='onosIp', type='str', default='', |
| help='IP address list of ONOS instances, separated by comma(,). Overrides --onos option' ) |
| |
| ( options, args ) = parser.parse_args() |
| return options, args |
| |
| opts, args = parseOptions() |
| |
| class DualHomedTaggedHostWithIpv4(Host): |
| |
| def __init__(self, name, ip, gateway, dhcp, vlan, *args, **kwargs): |
| super(DualHomedTaggedHostWithIpv4, self).__init__(name, **kwargs) |
| self.bond0 = None |
| self.ip = ip |
| self.gateway = gateway |
| self.dhcp = dhcp |
| self.vlan = vlan |
| |
| def config(self, **kwargs): |
| super(DualHomedTaggedHostWithIpv4, self).config(**kwargs) |
| intf0 = self.intfs[0].name |
| intf1 = self.intfs[1].name |
| |
| self.bond0 = "%s-bond0" % self.name |
| self.vlanBondIntf = "%s.%s" % (self.bond0, self.vlan) |
| |
| self.cmd('modprobe bonding') |
| self.cmd('ip link add %s type bond' % self.bond0) |
| self.cmd('ip link set %s down' % intf0) |
| self.cmd('ip link set %s down' % intf1) |
| self.cmd('ip link set %s master %s' % (intf0, self.bond0)) |
| self.cmd('ip link set %s master %s' % (intf1, self.bond0)) |
| self.cmd('ip addr flush dev %s' % intf0) |
| self.cmd('ip addr flush dev %s' % intf1) |
| self.cmd('ip link set %s up' % self.bond0) |
| |
| self.cmd('ip link add link %s name %s type vlan id %s' % (self.bond0, |
| self.vlanBondIntf, self.vlan)) |
| |
| self.cmd('ip link set up %s' % self.vlanBondIntf) |
| self.cmd('ip addr add %s/24 dev %s' % (self.ip, self.vlanBondIntf)) |
| self.cmd('ip route add default via %s' % self.gateway) |
| |
| default_intf = self.defaultIntf() |
| default_intf.name = self.bond0 |
| self.nameToIntf[self.bond0] = default_intf |
| |
| def terminate(self, **kwargs): |
| self.cmd('ip link set %s down' % self.bond0) |
| self.cmd('ip link delete %s' % self.bond0) |
| super(DualHomedTaggedHostWithIpv4, self).terminate() |
| |
| class DualHomedUntaggedHostWithIpv4(Host): |
| |
| def __init__(self, name, ip, gateway, dhcp, *args, **kwargs): |
| super(DualHomedUntaggedHostWithIpv4, self).__init__(name, **kwargs) |
| self.bond0 = None |
| self.ip = ip |
| self.gateway = gateway |
| self.dhcp = dhcp |
| |
| def config(self, **kwargs): |
| super(DualHomedUntaggedHostWithIpv4, self).config(**kwargs) |
| intf0 = self.intfs[0].name |
| intf1 = self.intfs[1].name |
| |
| self.bond0 = "%s-bond0" % self.name |
| self.cmd('modprobe bonding') |
| self.cmd('ip link add %s type bond' % self.bond0) |
| self.cmd('ip link set %s down' % intf0) |
| self.cmd('ip link set %s down' % intf1) |
| self.cmd('ip link set %s master %s' % (intf0, self.bond0)) |
| self.cmd('ip link set %s master %s' % (intf1, self.bond0)) |
| self.cmd('ip addr flush dev %s' % intf0) |
| self.cmd('ip addr flush dev %s' % intf1) |
| self.cmd('ip link set %s up' % self.bond0) |
| self.cmd('ip addr add %s/24 dev %s' % (self.ip, self.bond0)) |
| self.cmd('ip route add default via %s' % self.gateway) |
| |
| default_intf = self.defaultIntf() |
| default_intf.name = self.bond0 |
| self.nameToIntf[self.bond0] = default_intf |
| |
| def terminate(self, **kwargs): |
| self.cmd('ip link set %s down' % self.bond0) |
| self.cmd('ip link delete %s' % self.bond0) |
| super(DualHomedUntaggedHostWithIpv4, self).terminate() |
| |
| class TaggedHostWithIpv4(Host): |
| ''' |
| Tagged host configured with a static ip address. |
| ''' |
| def __init__(self, name, ip, gateway, dhcp, vlan, *args, **kwargs): |
| super(TaggedHostWithIpv4, self).__init__(name, *args, **kwargs) |
| self.ip = ip |
| self.gateway = gateway |
| self.vlan = vlan |
| self.vlanIntf = None |
| self.dhcp = dhcp |
| |
| def config(self, **kwargs): |
| Host.config(self, **kwargs) |
| |
| intf = self.defaultIntf() |
| self.vlanIntf = "%s.%s" % (intf, self.vlan) |
| self.cmd('ip -4 addr flush dev %s' % intf) |
| self.cmd('ip link add link %s name %s type vlan id %s' % (intf, self.vlanIntf, self.vlan)) |
| self.cmd('ip link set up %s' % self.vlanIntf) |
| self.cmd('ip addr add %s/24 dev %s' % (self.ip, self.vlanIntf)) |
| self.cmd('ip route add default via %s' % self.gateway) |
| intf.name = self.vlanIntf |
| self.nameToIntf[self.vlanIntf] = intf |
| |
| def terminate(self, **kwargs): |
| self.cmd('ip link remove link %s' % self.vlanIntf) |
| super(TaggedHostWithIpv4, self).terminate() |
| |
| |
| class UnTaggedHostWithIpv4(Host): |
| ''' |
| Untagged host configured with a static ip address. |
| ''' |
| def __init__(self, name, ip, gateway, dhcp, *args, **kwargs): |
| super(UnTaggedHostWithIpv4, self).__init__(name, *args, **kwargs) |
| self.ip = ip |
| self.gateway = gateway |
| self.dhcp = dhcp |
| |
| def config(self, **kwargs): |
| Host.config(self, **kwargs) |
| |
| intf = self.defaultIntf() |
| self.cmd('ip -4 addr flush dev %s' % intf) |
| self.cmd('ip addr add %s/24 dev %s' % (self.ip, intf)) |
| self.cmd('ip route add default via %s' % self.gateway) |
| |
| def terminate(self, **kwargs): |
| super(UnTaggedHostWithIpv4, self).terminate() |
| |
| class ComcastLeafSpineFabric(Topo): |
| |
| spines = dict() |
| leafs = dict() |
| hosts_dict = dict() |
| |
| def createIpv4Hosts(self, dhcp): |
| |
| h1 = self.addHost('h1v4', cls=UnTaggedHostWithIpv4, |
| mac='00:aa:00:00:00:01', ip='10.1.0.1', |
| gateway='10.1.0.254', dhcp=dhcp) |
| self.addLink(h1, self.leafs[0]) |
| self.hosts_dict['h1v4'] = h1 |
| |
| h2 = self.addHost('h2v4', cls=UnTaggedHostWithIpv4, |
| mac='00:aa:00:00:01:01', ip='10.1.10.1', |
| gateway='10.1.10.254', dhcp=dhcp) |
| self.addLink(h2, self.leafs[0]) |
| self.hosts_dict['h2v4'] = h2 |
| |
| h3 = self.addHost('h3v4', cls=UnTaggedHostWithIpv4, |
| mac='00:aa:00:00:00:02', ip='10.2.0.1', |
| gateway='10.2.0.254', dhcp=dhcp) |
| self.addLink(h3, self.leafs[1]) |
| self.hosts_dict['h3v4'] = h3 |
| |
| h4 = self.addHost('h4v4', cls=DualHomedUntaggedHostWithIpv4, |
| mac='00:aa:00:00:00:03', ip='10.2.30.1', |
| gateway='10.2.30.254', dhcp=dhcp) |
| self.addLink(h4, self.leafs[1]) |
| self.addLink(h4, self.leafs[2]) |
| self.hosts_dict['h4v4'] = h4 |
| |
| h5 = self.addHost('h5v4', cls=DualHomedTaggedHostWithIpv4, |
| mac='00:aa:00:00:00:04', ip='10.2.20.1', |
| gateway='10.2.20.254', dhcp=dhcp, vlan=30) |
| self.addLink(h5, self.leafs[1]) |
| self.addLink(h5, self.leafs[2]) |
| self.hosts_dict['h5v4'] = h5 |
| |
| h6 = self.addHost('h6v4', cls=TaggedHostWithIpv4, |
| mac='00:aa:00:00:00:05', ip='10.2.10.1', |
| gateway='10.2.10.254', dhcp=dhcp, vlan=20) |
| self.addLink(h6, self.leafs[2]) |
| self.hosts_dict['h6v4'] = h6 |
| |
| h7 = self.addHost('h7v4', cls=TaggedHostWithIpv4, |
| mac='00:aa:00:00:01:05', ip='10.2.40.1', |
| gateway='10.2.40.254', dhcp=dhcp, vlan=40) |
| self.addLink(h7, self.leafs[2]) |
| self.hosts_dict['h7v4'] = h7 |
| |
| h8 = self.addHost('h8v4', cls=TaggedHostWithIpv4, |
| mac='00:aa:00:00:00:06', ip='10.3.0.1', |
| gateway='10.3.0.254', dhcp=dhcp, vlan=30) |
| self.addLink(h8, self.leafs[3]) |
| self.hosts_dict['h8v4'] = h8 |
| |
| h9 = self.addHost('h9v4', cls=DualHomedTaggedHostWithIpv4, |
| mac='00:aa:00:00:00:07', ip='10.3.10.1', |
| gateway='10.3.10.254', dhcp=dhcp, vlan=40) |
| self.addLink(h9, self.leafs[3]) |
| self.addLink(h9, self.leafs[4]) |
| self.hosts_dict['h9v4'] = h9 |
| |
| h10 = self.addHost('h10v4', cls=DualHomedTaggedHostWithIpv4, |
| mac='00:aa:00:00:00:08', ip='10.3.30.1', |
| gateway='10.3.30.254', dhcp=dhcp, vlan=40) |
| self.addLink(h10, self.leafs[3]) |
| self.addLink(h10, self.leafs[4]) |
| self.hosts_dict['h10v4'] = h10 |
| |
| h11 = self.addHost('h11v4', cls=TaggedHostWithIpv4, |
| mac='00:aa:00:00:00:0a', ip='10.3.20.1', |
| gateway='10.3.20.254', dhcp=dhcp, vlan=40) |
| self.addLink(h11, self.leafs[4]) |
| self.hosts_dict['h11v4'] = h11 |
| |
| return |
| |
| def createIpv6Hosts(self, dhcp): |
| print("NYI") |
| return |
| |
| ''' |
| Creates the topology employed by Comcast which is a 2x5 |
| leaf spine traffic. |
| |
| S1 S2 |
| |
| L1 L2 L3 L4 L5 |
| |
| Where L2/L3 and L4/L5 are paired switches. |
| Parameters for this topology : |
| dhcp = True/False : set up dhcp servers |
| routers = True/False : set up external routers |
| ''' |
| def __init__(self, dhcp=False, routers=False, ipv4=False, ipv6=False, **opts): |
| Topo.__init__(self, **opts) |
| |
| # TODO: support IPv6 hosts |
| linkopts = dict( bw=10 ) |
| |
| spine = 2 |
| leaf = 5 |
| |
| # Create spine switches |
| for s in range(spine): |
| self.spines[s] = self.addSwitch('spine10%s' % (s + 1), dpid = "00000000010%s" % (s + 1) ) |
| |
| # Create leaf switches |
| for ls in range(leaf): |
| self.leafs[ls] = self.addSwitch('leaf%s' % (ls + 1), dpid = "00000000000%s" % ( ls + 1) ) |
| |
| # connecting leaf and spines, leafs 1-5 have double links |
| for s in range( spine ): |
| spine_switch = self.spines[s] |
| |
| for ls in range( leaf ): |
| leaf_switch = self.leafs[ls] |
| |
| self.addLink( spine_switch, leaf_switch, **linkopts ) |
| if ls > 0: |
| self.addLink( spine_switch, leaf_switch, **linkopts ) |
| |
| # connect paired leafs |
| self.addLink(self.leafs[1], self.leafs[2], **linkopts) |
| self.addLink(self.leafs[3], self.leafs[4], **linkopts) |
| |
| # create hosts |
| if ipv6: |
| self.createIpv6Hosts(dhcp) |
| |
| if ipv4: |
| self.createIpv4Hosts(dhcp) |
| |
| if not ipv4 and not ipv6: |
| print("No hosts were created!") |
| |
| def config( opts ): |
| |
| dhcp = bool(opts.dhcp) |
| routers = bool(opts.routers) |
| ipv6 = bool(opts.ipv6) |
| ipv4 = bool(opts.ipv4) |
| |
| if opts.onosIp != '': |
| controllers = opts.onosIp.split( ',' ) |
| else: |
| controllers = ['127.0.0.1'] |
| topo = ComcastLeafSpineFabric(dhcp=dhcp, routers=routers, ipv6=ipv6, |
| ipv4=ipv4) |
| |
| net = Mininet( topo=topo, link=TCLink, build=False, |
| controller=None, autoSetMacs=True ) |
| i = 0 |
| for ip in controllers: |
| net.addController( "c%s" % ( i ), controller=RemoteController, ip=ip ) |
| i += 1 |
| |
| net.build() |
| net.start() |
| CLI( net ) |
| net.stop() |
| |
| |
| if __name__ == '__main__': |
| setLogLevel('info') |
| config(opts) |
| os.system('sudo mn -c') |
| |