#!/usr/bin/env python
#
# NEPI, a framework to manage network experiments
# Copyright (C) 2013 INRIA
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
#
# Authors : Julien Tribino
# Alina Quereilhac
#
# Topology :
#
# Switch1 -------- Switch2
# / \
# / \
# / \
# Host1 Host2
from nepi.execution.ec import ExperimentController
import os, time
import sys
def add_node(ec, host, user, pl_user, pl_password):
node = ec.register_resource("planetlab::Node")
ec.set(node, "hostname", host)
ec.set(node, "username", user)
if pl_user:
ec.set(node, "pluser", pl_user)
if pl_password:
ec.set(node, "plpassword", pl_password)
ec.set(node, "cleanExperiment", True)
ec.set(node, "cleanProcesses", True)
return node
def add_ovs(ec, bridge_name, virtual_ip_pref, controller_ip, controller_port, node):
ovs = ec.register_resource("planetlab::OVSSwitch")
ec.set(ovs, "bridge_name", bridge_name)
ec.set(ovs, "virtual_ip_pref", virtual_ip_pref)
ec.set(ovs, "controller_ip", controller_ip)
ec.set(ovs, "controller_port", controller_port)
ec.register_connection(ovs, node)
return ovs
def add_port(ec, port_name, network, ovs):
port = ec.register_resource("planetlab::OVSPort")
ec.set(port, "port_name", port_name)
ec.set(port, "network", network)
ec.register_connection(port, ovs)
return port
def add_tap(ec, ip, prefix, pointopoint, node):
tap = ec.register_resource("planetlab::Tap")
ec.set(tap, "ip", ip)
ec.set(tap, "prefix", prefix)
ec.set(tap, "pointopoint", pointopoint)
ec.set(tap, "up", True)
ec.register_connection(tap, node)
return tap
def add_tunnel(ec, port0, tap):
tunnel = ec.register_resource("linux::UdpTunnel")
ec.register_connection(port0, tunnel)
ec.register_connection(tunnel, tap)
return tunnel
def add_app(ec, command, node):
app = ec.register_resource("linux::Application")
ec.set(app, "command", command)
ec.register_connection(app, node)
return app
# Create the EC
ec = ExperimentController(exp_id = "test")
#XXX : Need to put 4 working nodes or to let Nepi find for you
switch1 = "planetlab2.virtues.fi"
switch2 = "planetlab2.upc.es"
host1 = "planetlab2.ionio.gr"
host2 = "iraplab2.iralab.uni-karlsruhe.de"
ip_controller = "1.1.1.1"
#XXX : Depends on the Vsys_tag of your slice
network = "192.168.3.0"
#XXX : Name of your slice
slicename = "inria_nepi"
pl_user = os.environ.get("PL_USER")
pl_password = os.environ.get("PL_PASS")
s1_node = add_node(ec, switch1, slicename, pl_user, pl_password)
s2_node = add_node(ec, switch2, slicename, pl_user, pl_password)
# Add switches
ovs1 = add_ovs(ec, "nepi_bridge_1", "192.168.3.1/24", ip_controller, "6633", s1_node)
ovs2 = add_ovs(ec, "nepi_bridge_2", "192.168.3.2/24", ip_controller, "6633", s2_node)
# Add ports on ovs
port1 = add_port(ec, "nepi_port1", network, ovs1)
port3 = add_port(ec, "nepi_port3", network, ovs1)
port2 = add_port(ec, "nepi_port2", network, ovs2)
port4 = add_port(ec, "nepi_port4", network, ovs2)
h1_node = add_node(ec, host1, slicename, pl_user, pl_password)
h2_node = add_node(ec, host2, slicename, pl_user, pl_password)
# Add tap devices
tap1 = add_tap(ec, "192.168.3.3", "24", "192.168.3.1", h1_node)
tap2 = add_tap(ec, "192.168.3.4", "24", "192.168.3.2", h2_node)
# Connect the nodes
tunnel1 = add_tunnel(ec, port1, tap1)
tunnel2 = add_tunnel(ec, port2, tap2)
tunnel3 = add_tunnel(ec, port3, port4)
# Add ping commands
app1 = add_app(ec, "ping -c5 192.168.3.2", s1_node)
app2 = add_app(ec, "ping -c5 192.168.3.3", s1_node)
app3 = add_app(ec, "ping -c5 192.168.3.4", s1_node)
app4 = add_app(ec, "ping -c5 192.168.3.1", s2_node)
app5 = add_app(ec, "ping -c5 192.168.3.3", s2_node)
app6 = add_app(ec, "ping -c5 192.168.3.4", s2_node)
app7 = add_app(ec, "ping -c5 192.168.3.1", h1_node)
app8 = add_app(ec, "ping -c5 192.168.3.2", h1_node)
app9 = add_app(ec, "ping -c5 192.168.3.4", h1_node)
app10 = add_app(ec, "ping -c5 192.168.3.1", h2_node)
app11 = add_app(ec, "ping -c5 192.168.3.2", h2_node)
app12 = add_app(ec, "ping -c5 192.168.3.3", h2_node)
ec.deploy()
ec.wait_finished([app1, app2, app3, app4, app5, app6, app7, app8, app9, app10, app11, app12])
# Retreive ping results and save
# them in a file
ping1 = ec.trace(app1, 'stdout')
ping2 = ec.trace(app2, 'stdout')
ping3 = ec.trace(app3, 'stdout')
ping4 = ec.trace(app4, 'stdout')
ping5 = ec.trace(app5, 'stdout')
ping6 = ec.trace(app6, 'stdout')
ping7 = ec.trace(app7, 'stdout')
ping8 = ec.trace(app8, 'stdout')
ping9 = ec.trace(app9, 'stdout')
ping10 = ec.trace(app10, 'stdout')
ping11 = ec.trace(app11, 'stdout')
ping12 = ec.trace(app12, 'stdout')
if not ping12:
ec.shutdown()
sys.exit("No ping found")
f = open("examples/openvswitch/ovs_ping_2switches.txt", 'w')
f.write("************ Ping From Switch 1 : 192.168.3.1 ********************\n\n")
f.write(ping1)
f.write("----------------------------------------\n\n")
f.write(ping2)
f.write("----------------------------------------\n\n")
f.write(ping3)
f.write("************ Ping From Switch 2 : 192.168.3.2 ********************\n\n")
f.write(ping4)
f.write("----------------------------------------\n\n")
f.write(ping5)
f.write("----------------------------------------\n\n")
f.write(ping6)
f.write("************ Ping From Host 1 : 192.168.3.3 ********************\n\n")
f.write(ping7)
f.write("----------------------------------------\n\n")
f.write(ping8)
f.write("----------------------------------------\n\n")
f.write(ping9)
f.write("************ Ping From Host 2 : 192.168.3.4 ********************\n\n")
f.write(ping10)
f.write("----------------------------------------\n\n")
f.write(ping11)
f.write("----------------------------------------\n\n")
f.write(ping12)
f.close()
# Delete the overlay network
ec.shutdown()