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 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
20 from __future__ import print_function
32 n1 -- p2p -- n2 -- csma -- n5 -- p2p -- n8
42 from nepi.execution.ec import ExperimentController
44 def add_node(ec, simu):
45 ## Add a ns-3 node with its protocol stack
46 nsnode = ec.register_resource("ns3::Node")
47 ec.register_connection(nsnode, simu)
49 ipv4 = ec.register_resource("ns3::Ipv4L3Protocol")
50 ec.register_connection(nsnode, ipv4)
51 arp = ec.register_resource("ns3::ArpL3Protocol")
52 ec.register_connection(nsnode, arp)
53 icmp = ec.register_resource("ns3::Icmpv4L4Protocol")
54 ec.register_connection(nsnode, icmp)
57 def add_p2p_dev(ec, nsnode, ip, prefix):
58 # Add a point to point net device to the node
59 dev = ec.register_resource("ns3::PointToPointNetDevice")
61 ec.set(dev, "prefix", prefix)
62 ec.register_connection(nsnode, dev)
63 queue = ec.register_resource("ns3::DropTailQueue")
64 ec.register_connection(dev, queue)
67 def add_csma_dev(ec, nsnode, ip, prefix):
68 dev = ec.register_resource("ns3::CsmaNetDevice")
70 ec.set(dev, "prefix", prefix)
71 ec.register_connection(nsnode, dev)
72 queue = ec.register_resource("ns3::DropTailQueue")
73 ec.register_connection(dev, queue)
76 def add_csma_chan(ec, devs):
78 chan = ec.register_resource("ns3::CsmaChannel")
79 ec.set(chan, "Delay", "0s")
82 ec.register_connection(chan, dev)
86 def add_p2p_chan(ec, dev1, dev2):
87 # Add a point to point channel
88 chan = ec.register_resource("ns3::PointToPointChannel")
89 ec.set(chan, "Delay", "0s")
90 ec.register_connection(chan, dev1)
91 ec.register_connection(chan, dev2)
94 ec = ExperimentController(exp_id = "ns3-csma-p2p-ping")
96 # Simulation will run in a remote machine
97 node = ec.register_resource("linux::Node")
98 ec.set(node, "hostname", "localhost")
100 # Add a simulation resource
101 simu = ec.register_resource("linux::ns3::Simulation")
102 ec.set(simu, "verbose", True)
103 ec.set(simu, "enableDump", True)
104 ec.register_connection(simu, node)
106 # Add simulated nodes
107 nsnode1 = add_node(ec, simu)
108 nsnode2 = add_node(ec, simu)
109 nsnode3 = add_node(ec, simu)
110 nsnode4 = add_node(ec, simu)
111 nsnode5 = add_node(ec, simu)
112 nsnode6 = add_node(ec, simu)
113 nsnode7 = add_node(ec, simu)
114 nsnode8 = add_node(ec, simu)
116 # Build the start topology
117 dev12 = add_p2p_dev(ec, nsnode1, "10.0.1.1", "30")
118 dev21 = add_p2p_dev(ec, nsnode2, "10.0.1.2", "30")
119 p2p1 = add_p2p_chan(ec, dev12, dev21)
121 dev46 = add_p2p_dev(ec, nsnode4, "10.0.2.1", "30")
122 dev64 = add_p2p_dev(ec, nsnode6, "10.0.2.2", "30")
123 p2p2 = add_p2p_chan(ec, dev46, dev64)
125 dev37 = add_p2p_dev(ec, nsnode3, "10.0.3.1", "30")
126 dev73 = add_p2p_dev(ec, nsnode7, "10.0.3.2", "30")
127 p2p3 = add_p2p_chan(ec, dev37, dev73)
129 dev85 = add_p2p_dev(ec, nsnode5, "10.0.4.1", "30")
130 dev58 = add_p2p_dev(ec, nsnode8, "10.0.4.2", "30")
131 p2p4 = add_p2p_chan(ec, dev85, dev58)
133 dev2 = add_csma_dev(ec, nsnode2, "10.0.0.1", "24")
134 dev3 = add_csma_dev(ec, nsnode3, "10.0.0.2", "24")
135 dev4 = add_csma_dev(ec, nsnode4, "10.0.0.3", "24")
136 dev5 = add_csma_dev(ec, nsnode5, "10.0.0.4", "24")
138 csma1 = add_csma_chan(ec, [dev2, dev3, dev4, dev5])
141 # Add n2 as default gw for n1
142 r1 = ec.register_resource("ns3::Route")
143 ec.set(r1, "network", "0.0.0.0")
144 ec.set(r1, "prefix", "30")
145 ec.set(r1, "nexthop", "10.0.1.2")
146 ec.register_connection(r1, nsnode1)
148 # Add route to n8 from n2
149 r28 = ec.register_resource("ns3::Route")
150 ec.set(r28, "network", "10.0.4.0")
151 ec.set(r28, "prefix", "30")
152 ec.set(r28, "nexthop", "10.0.0.4")
153 ec.register_connection(r28, nsnode2)
155 # Add n5 as default gw for n8
156 r8 = ec.register_resource("ns3::Route")
157 ec.set(r8, "network", "0.0.0.0")
158 ec.set(r8, "prefix", "30")
159 ec.set(r8, "nexthop", "10.0.4.1")
160 ec.register_connection(r8, nsnode8)
162 # Add route to n1 from n5
163 r51 = ec.register_resource("ns3::Route")
164 ec.set(r51, "network", "10.0.1.0")
165 ec.set(r51, "prefix", "30")
166 ec.set(r51, "nexthop", "10.0.0.1")
167 ec.register_connection(r51, nsnode5)
170 ping = ec.register_resource("ns3::V4Ping")
171 ec.set (ping, "Remote", "10.0.4.2")
172 ec.set (ping, "Interval", "1s")
173 ec.set (ping, "Verbose", True)
174 ec.set (ping, "StartTime", "0s")
175 ec.set (ping, "StopTime", "20s")
176 ec.register_connection(ping, nsnode1)
180 ec.wait_finished([ping])
182 stdout = ec.trace(simu, "stdout")
186 print("PING OUTPUT", stdout)