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 version 2 as
   8 #    published by the Free Software Foundation;
   9 #
  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.
  14 #
  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/>.
  17 #
  18 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
  19 #
  20 #
  21 # This example must be executed as root:
  22 # $ sudo PYTHONPATH=$PYTHONPATH:src python examples/netns/local_switch_ping.py
  23
  24 from nepi.execution.ec import ExperimentController
  25
  26 ec = ExperimentController(exp_id = "netns-local-p2p-ping")
  27
  28 # Simulation will executed in the local machine
  29 node = ec.register_resource("linux::Node")
  30 ec.set(node, "hostname", "localhost")
  31
  32 # Add an emulation resource
  33 emu = ec.register_resource("linux::netns::Emulation")
  34 ec.set(emu, "verbose", True)
  35 ec.register_connection(emu, node)
  36
  37 # Add two emulated nodes
  38 netnsnode1 = ec.register_resource("netns::Node")
  39 ec.register_connection(netnsnode1, emu)
  40
  41 iface1 = ec.register_resource("netns::NodeInterface")
  42 ec.register_connection(iface1, netnsnode1)
  43
  44 ip1 = ec.register_resource("netns::IPv4Address")
  45 ec.set(ip1, "ip", "10.0.0.1")
  46 ec.set(ip1, "prefix", "30")
  47 ec.register_connection(ip1, iface1)
  48
  49 netnsnode2 = ec.register_resource("netns::Node")
  50 ec.register_connection(netnsnode2, emu)
  51
  52 iface2 = ec.register_resource("netns::NodeInterface")
  53 ec.register_connection(iface2, netnsnode2)
  54
  55 ip2 = ec.register_resource("netns::IPv4Address")
  56 ec.set(ip2, "ip", "10.0.0.2")
  57 ec.set(ip2, "prefix", "30")
  58 ec.register_connection(ip2, iface2)
  59
  60 switch = ec.register_resource("netns::Switch")
  61 ec.register_connection(iface1, switch)
  62 ec.register_connection(iface2, switch)
  63
  64 ping = ec.register_resource("netns::Application")
  65 ec.set(ping, "command", "ping -c20 10.0.0.2")
  66 ec.register_connection(ping, netnsnode1)
  67
  68 ec.deploy()
  69
  70 ec.wait_finished([ping])
  71
  72 stdout = ec.trace(ping, "stdout")
  73
  74 ec.shutdown()
  75
  76 print "PING OUTPUT", stdout