3 # NEPI, a framework to manage network experiments
4 # Copyright (C) 2013 INRIA
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License version 2 as
8 # published by the Free Software Foundation;
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 # Authors : Julien Tribino <julien.tribino@inria.fr>
19 # Alina Quereilhac <alina.quereilhac@inria.fr>
32 # $ PYTHONPATH=$PYTHONPATH:src/ python examples/openvswitch/ovs_ping.py -n "192.168.3.0/24" -s <slicename> -i /~/.ssh/id_rsa
35 from nepi.execution.ec import ExperimentController
38 from optparse import OptionParser
43 pl_slice = os.environ.get("PL_SLICE")
44 pl_user = os.environ.get("PL_USER")
45 pl_pass = os.environ.get("PL_PASS")
46 identity = os.environ.get("PL_SSHKEY")
48 usage = ("usage: %prog -a <host> -b <switch>"
49 "-n <vsys_vnet> -C <controller> -s <slicename> -u <pl-user> "
50 "-p <pl-password> -i <ssh-key> ")
52 switch = "planetlab2.virtues.fi"
53 host = "planetlab2.ionio.gr"
55 parser = OptionParser(usage = usage)
56 parser.add_option("-a", "--host", dest="host",
57 help="Hostname for PlanetLab host", default=host)
58 parser.add_option("-b", "--switch", dest="switch",
59 help="Hostname for PlanetLab switch", default=switch)
60 parser.add_option("-n", "--vsys_vnet", dest="vsys_vnet",
61 help="Overlay network address of the form x.x.x.x/yy. "
62 "Must correspond to the vsys_vnet tag on the PlanetLab slice")
63 parser.add_option("-C", "--controller", dest="controller",
64 help="IP address for the OpenFlow controller, if one has been deployed")
65 parser.add_option("-s", "--slicename", dest="slicename",
66 help="Name of PlanetLab slice",
68 parser.add_option("-u", "--pl_user", dest="pl_user",
69 help="PlanetLab user (email address)",
71 parser.add_option("-p", "--pl_pass", dest="pl_pass",
72 help="PlanetLab password",
74 parser.add_option("-i", "--identity", dest="identity",
75 help="Path to SSH key",
78 (options, args) = parser.parse_args()
80 return (options.host, options.switch,
81 options.vsys_vnet, options.controller, options.slicename,
82 options.pl_user, options.pl_pass, identity)
84 (host, switch, vsys_vnet, controller, slicename,
85 pl_user, pl_pass, identity) = parse_args()
88 ec = ExperimentController(exp_id = "ovs_ping")
90 net = vsys_vnet.split("/")
93 net_segs = network.split(".")
94 ip1 = "%s.1" % ".".join(net_segs[:-1]) # x.x.x.1
95 ip2 = "%s.2" % ".".join(net_segs[:-1]) # x.x.x.2
98 node1 = ec.register_resource("planetlab::Node")
99 ec.set(node1, "hostname", switch)
100 ec.set(node1, "username", slicename)
101 ec.set(node1, "identity", identity)
102 ec.set(node1, "pluser", pl_user)
103 ec.set(node1, "plpassword", pl_pass)
104 ec.set(node1, "cleanExperiment", True)
105 ec.set(node1, "cleanProcesses", True)
107 addr1 = "%s/%s" % (ip1, prefix) # x.x.x.1/prefix
108 ovs = ec.register_resource("planetlab::OVSSwitch")
109 ec.set(ovs, "bridge_name", "nepi_bridge")
110 ec.set(ovs, "virtual_ip_pref", addr1)
111 ec.set(ovs, "controller_ip", controller)
112 ec.set(ovs, "controller_port", "6633")
113 ec.register_connection(ovs, node1)
116 node2 = ec.register_resource("planetlab::Node")
117 ec.set(node2, "hostname", host)
118 ec.set(node2, "username", slicename)
119 ec.set(node2, "identity", identity)
120 ec.set(node2, "pluser", pl_user)
121 ec.set(node2, "plpassword", pl_pass)
122 ec.set(node2, "cleanExperiment", True)
123 ec.set(node2, "cleanProcesses", True)
127 tap = ec.register_resource("planetlab::Tap")
128 ec.set(tap, "ip", ip2)
129 ec.set(tap, "prefix", prefix)
130 ec.set(tap, "pointopoint", ip1)
131 ec.register_connection(tap, node2)
134 port = ec.register_resource("planetlab::OVSPort")
135 ec.set(port, "port_name", "nepi_port")
136 ec.set(port, "network", network)
137 ec.register_connection(port, ovs)
139 # Add tunnel between host and switch
140 tunnel = ec.register_resource("linux::UdpTunnel")
141 ec.register_connection(port, tunnel)
142 ec.register_connection(tunnel, tap)
144 ## Ping switch from host
145 app = ec.register_resource("linux::Application")
146 ec.set(app, "command", "ping -c5 %s" % ip1)
147 ec.register_connection(app, node2)
151 ec.wait_finished([app])
153 # Retreive ping results and save them in a file
154 ping = ec.trace(app, "stdout")
158 # Delete the overlay network