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cleanup simple example

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This commit is contained in:
Mathieu Lacage
2007-07-27 21:39:58 +02:00
parent 31530c7311
commit 230b3840ad
1 changed files with 22 additions and 63 deletions
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85
examples/simple-csma-cd.cc
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@@ -12,30 +12,25 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ns-2 simple.tcl script (ported from ns-2)
* Originally authored by Steve McCanne, 12/19/1996
*/
// Port of ns-2/tcl/ex/simple.tcl to ns-3
//
// Network topology
//
// n0
// \ 5 Mb/s, 2ms
// \ 1.5Mb/s, 10ms
// n2 -------------------------n3
// /
// / 5 Mb/s, 2ms
// n1
// n0
// |
// |
// n2---+----n3
// |
// |
// n1
//
// - all links are p2p links with indicated one-way BW/delay
// - CBR/UDP flows from n0 to n3, and from n3 to n1
// - FTP/TCP flow from n0 to n3, starting at time 1.2 to time 1.35 sec.
// - CBR/UDP flows from n0 to n1, and from n3 to n0
// - UDP packet size of 210 bytes, with per-packet interval 0.00375 sec.
// (i.e., DataRate of 448,000 bps)
// - DropTail queues
// - Tracing of queues and packet receptions to file "simple-p2p.tr"
// - Tracing of queues and packet receptions to file "simple-csma-cd.tr"
#include <iostream>
#include <fstream>
@@ -88,8 +83,6 @@ int main (int argc, char *argv[])
DebugComponentEnable("PacketSocket");
#endif
Packet::EnableMetadata();
// Set up some default values for the simulation. Use the Bind()
// technique to tell the system what subclass of Queue to use,
// and what the queue limit is
@@ -115,53 +108,34 @@ int main (int argc, char *argv[])
DataRate(5000000), MilliSeconds(2));
CsmaCdIpv4Topology::AddIpv4CsmaCdNode (n0, channel0,
MacAddress("10:54:23:54:23:50"));
MacAddress("10:54:23:54:23:50"));
CsmaCdIpv4Topology::AddIpv4CsmaCdNode (n1, channel0,
MacAddress("10:54:23:54:23:51"));
MacAddress("10:54:23:54:23:51"));
CsmaCdIpv4Topology::AddIpv4CsmaCdNode (n2, channel0,
MacAddress("10:54:23:54:23:52"));
MacAddress("10:54:23:54:23:52"));
CsmaCdIpv4Topology::AddIpv4CsmaCdNode (n3, channel0,
MacAddress("10:54:23:54:23:53"));
MacAddress("10:54:23:54:23:53"));
// Later, we add IP addresses.
CsmaCdIpv4Topology::AddIpv4Address (
n0, 0, Ipv4Address("10.1.1.1"), Ipv4Mask("255.255.255.0"));
n0, 1, Ipv4Address("10.1.1.1"), Ipv4Mask("255.255.255.0"));
CsmaCdIpv4Topology::AddIpv4Address (
n0, 1, Ipv4Address("10.1.1.2"), Ipv4Mask("255.255.255.0"));
n1, 1, Ipv4Address("10.1.1.2"), Ipv4Mask("255.255.255.0"));
CsmaCdIpv4Topology::AddIpv4Address (
n1, 0, Ipv4Address("10.1.2.1"), Ipv4Mask("255.255.255.0"));
CsmaCdIpv4Topology::AddIpv4Address (
n1, 1, Ipv4Address("10.1.2.2"), Ipv4Mask("255.255.255.0"));
CsmaCdIpv4Topology::AddIpv4Address (
n2, 0, Ipv4Address("10.1.3.1"), Ipv4Mask("255.255.255.0"));
n2, 1, Ipv4Address("10.1.1.3"), Ipv4Mask("255.255.255.0"));
CsmaCdIpv4Topology::AddIpv4Address (
n2, 1, Ipv4Address("10.1.3.2"), Ipv4Mask("255.255.255.0"));
CsmaCdIpv4Topology::AddIpv4Address (
n3, 0, Ipv4Address("10.1.4.1"), Ipv4Mask("255.255.255.0"));
CsmaCdIpv4Topology::AddIpv4Address (
n3, 1, Ipv4Address("10.1.4.2"), Ipv4Mask("255.255.255.0"));
// Finally, we add static routes. These three steps (Channel and
// NetDevice creation, IP Address assignment, and routing) are
// separated because there may be a need to postpone IP Address
// assignment (emulation) or modify to use dynamic routing
CsmaCdIpv4Topology::AddIpv4Routes(n0->GetDevice(0), n2->GetDevice(1));
CsmaCdIpv4Topology::AddIpv4Routes(n1->GetDevice(0), n2->GetDevice(1));
CsmaCdIpv4Topology::AddIpv4Routes(n2->GetDevice(0), n3->GetDevice(1));
n3, 1, Ipv4Address("10.1.1.4"), Ipv4Mask("255.255.255.0"));
// Create the OnOff application to send UDP datagrams of size
// 210 bytes at a rate of 448 Kb/s
// from n0 to n1
Ptr<OnOffApplication> ooff = Create<OnOffApplication> (
n0,
Ipv4Address("10.1.3.2"),
Ipv4Address("10.1.1.2"),
80,
"Udp",
ConstantVariable(1),
@@ -170,10 +144,10 @@ int main (int argc, char *argv[])
ooff->Start(Seconds(1.0));
ooff->Stop (Seconds(10.0));
// Create a similar flow from n3 to n1, starting at time 1.1 seconds
// Create a similar flow from n3 to n0, starting at time 1.1 seconds
ooff = Create<OnOffApplication> (
n3,
Ipv4Address("10.1.2.1"),
Ipv4Address("10.1.1.1"),
80,
"Udp",
ConstantVariable(1),
@@ -181,28 +155,13 @@ int main (int argc, char *argv[])
// Start the application
ooff->Start(Seconds(1.1));
ooff->Stop (Seconds(10.0));
// Here, finish off packet routing configuration
// This will likely set by some global StaticRouting object in the future
Ptr<Ipv4> ipv4;
ipv4 = n0->QueryInterface<Ipv4> (Ipv4::iid);
ipv4->SetDefaultRoute (Ipv4Address ("10.1.1.2"), 1);
ipv4 = n3->QueryInterface<Ipv4> (Ipv4::iid);
ipv4->SetDefaultRoute (Ipv4Address ("10.1.3.1"), 1);
// Configure tracing of all enqueue, dequeue, and NetDevice receive events
// Trace output will be sent to the simple-p2p.tr file
AsciiTrace asciitrace ("simple-csma-cd.tr");
asciitrace.TraceAllNetDeviceRx ();
// asciitrace.TraceAllQueues ();
// Also configure some tcpdump traces; each interface will be traced
// The output files will be named simple-p2p.pcap-<nodeId>-<interfaceId>
// and can be read by the "tcpdump -r" command (use "-tt" option to
// display timestamps correctly)
// PcapTrace pcaptrace ("simple-p2p.pcap");
// pcaptrace.TraceAllIp ();
Simulator::Run ();
Simulator::Destroy ();