examples/netns/local_switch_ping.py

   1 #!/usr/bin/env python
   2 #
   3 #    NEPI, a framework to manage network experiments
   4 #    Copyright (C) 2013 INRIA
   5 #
   6 #    This program is free software: you can redistribute it and/or modify
   7 #    it under the terms of the GNU General Public License as published by
   8 #    the Free Software Foundation, either version 3 of the License, or
   9 #    (at your option) any later version.
  10 #
  11 #    This program is distributed in the hope that it will be useful,
  12 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 #    GNU General Public License for more details.
  15 #
  16 #    You should have received a copy of the GNU General Public License
  17 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
  20 #
  21 #
  22 # This example must be executed as root:
  23 # $ sudo PYTHONPATH=$PYTHONPATH:src python examples/netns/local_switch_ping.py
  24
  25 from nepi.execution.ec import ExperimentController
  26
  27 ec = ExperimentController(exp_id = "netns-local-p2p-ping")
  28
  29 # Simulation will executed in the local machine
  30 node = ec.register_resource("linux::Node")
  31 ec.set(node, "hostname", "localhost")
  32
  33 # Add an emulation resource
  34 emu = ec.register_resource("linux::netns::Emulation")
  35 ec.set(emu, "verbose", True)
  36 ec.register_connection(emu, node)
  37
  38 # Add two emulated nodes
  39 netnsnode1 = ec.register_resource("netns::Node")
  40 ec.register_connection(netnsnode1, emu)
  41
  42 iface1 = ec.register_resource("netns::NodeInterface")
  43 ec.register_connection(iface1, netnsnode1)
  44
  45 ip1 = ec.register_resource("netns::IPv4Address")
  46 ec.set(ip1, "ip", "10.0.0.1")
  47 ec.set(ip1, "prefix", "30")
  48 ec.register_connection(ip1, iface1)
  49
  50 netnsnode2 = ec.register_resource("netns::Node")
  51 ec.register_connection(netnsnode2, emu)
  52
  53 iface2 = ec.register_resource("netns::NodeInterface")
  54 ec.register_connection(iface2, netnsnode2)
  55
  56 ip2 = ec.register_resource("netns::IPv4Address")
  57 ec.set(ip2, "ip", "10.0.0.2")
  58 ec.set(ip2, "prefix", "30")
  59 ec.register_connection(ip2, iface2)
  60
  61 switch = ec.register_resource("netns::Switch")
  62 ec.register_connection(iface1, switch)
  63 ec.register_connection(iface2, switch)
  64
  65 ping = ec.register_resource("netns::Application")
  66 ec.set(ping, "command", "ping -c20 10.0.0.2")
  67 ec.register_connection(ping, netnsnode1)
  68
  69 ec.deploy()
  70
  71 ec.wait_finished([ping])
  72
  73 stdout = ec.trace(ping, "stdout")
  74
  75 ec.shutdown()
  76
  77 print "PING OUTPUT", stdout