[ndnSIM] Configure FIBs based on IP addresses
Moreno Ambrosin
morambro at gmail.com
Fri Feb 14 06:25:36 PST 2014
Hi,
I performed some tests with UDP face, printing logs from the classes
Packet, ndn.UdpFace and ndn.Face. What I found is that the tag SocketAddressTag
is not removed when the packet is received, and thus, when the tag is added
again, the assertion fails.
Any idea of what could be the problem? Who should be supposed to remove
and add this tag again?
Regards,
Moreno
2014-02-11 21:56 GMT+01:00 Moreno Ambrosin <morambro at gmail.com>:
> Hi Alex,
>
> thank you for your reply. Here is a code example for a simple
> configuration. The idea is tho have nodes 0,1 and 2 connected to node 3 by
> a point-to-point link, node 4 connected to node 3 and node 5 linked to node
> 4. On this IP network, I would like to build an NDN overlay network,
> placing three consumers on nodes 0,1 and 2, a router on node 3, and a
> producer on node 5.
>
>
> #### Example
>
>
> #include "ns3/core-module.h"
> #include "ns3/network-module.h"
> #include "ns3/point-to-point-module.h"
> #include "ns3/internet-module.h"
> #include "ns3/ndnSIM-module.h"
> #include <boost/lexical_cast.hpp>
>
> #include "ns3/ndn-l3-rate-tracer.h"
>
> NS_LOG_COMPONENT_DEFINE ("ndn-ip-overlay");
>
> using namespace ns3;
>
> int main (int argc, char *argv[])
> {
> Packet::EnablePrinting ();
>
>
> // setting default parameters for PointToPoint links and channels
> Config::SetDefault ("ns3::PointToPointNetDevice::DataRate",
> StringValue ("1Mbps"));
> Config::SetDefault ("ns3::PointToPointChannel::Delay", StringValue
> ("10ms"));
> Config::SetDefault ("ns3::DropTailQueue::MaxPackets", StringValue
> ("20"));
>
> CommandLine cmd;
> cmd.Parse (argc, argv);
>
> NodeContainer routerNodes;
> routerNodes.Create(6);
>
> // Create Ipv4 classes in order to assign IPs in the topology
> Ipv4AddressHelper ipv4_helper;
> InternetStackHelper ipStack;
> ipStack.SetIpv6StackInstall (false);
> ipStack.InstallAll ();
> Ipv4Address base_addr("10.1.1.0");
> PointToPointHelper p2p;
> ipv4_helper.SetBase(base_addr, Ipv4Mask ("/24"));
> ipv4_helper.Assign(p2p.Install(routerNodes.Get(0), routerNodes.Get(3)));
> base_addr = Ipv4Address (base_addr.Get () + 256);
> ipv4_helper.SetBase(base_addr, Ipv4Mask ("/24"));
> ipv4_helper.Assign(p2p.Install(routerNodes.Get(1), routerNodes.Get(3)));
> base_addr = Ipv4Address (base_addr.Get () + 256);
> ipv4_helper.SetBase(base_addr, Ipv4Mask ("/24"));
> ipv4_helper.Assign(p2p.Install(routerNodes.Get(2), routerNodes.Get(3)));
> base_addr = Ipv4Address (base_addr.Get () + 256);
> ipv4_helper.SetBase(base_addr, Ipv4Mask ("/24"));
> ipv4_helper.Assign(p2p.Install(routerNodes.Get(3), routerNodes.Get(4)));
> base_addr = Ipv4Address (base_addr.Get () + 256);
> ipv4_helper.SetBase(base_addr, Ipv4Mask ("/24"));
> ipv4_helper.Assign(p2p.Install(routerNodes.Get(4), routerNodes.Get(5)));
> base_addr = Ipv4Address (base_addr.Get () + 256);
>
> Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
>
> // Install NDN stack on all nodes
> ndn::StackHelper ndnHelper;
> ndnHelper.SetForwardingStrategy ("ns3::ndn::fw::BestRoute");
> ndnHelper.SetDefaultRoutes (false);
>
> ndnHelper.Install(routerNodes.Get(0));
> ndnHelper.Install(routerNodes.Get(1));
> ndnHelper.Install(routerNodes.Get(2));
> ndnHelper.Install(routerNodes.Get(3));
> ndnHelper.Install(routerNodes.Get(5));
>
> ndn::IpFacesHelper::Install(routerNodes.Get(0));
> ndn::IpFacesHelper::Install(routerNodes.Get(1));
> ndn::IpFacesHelper::Install(routerNodes.Get(2));
> ndn::IpFacesHelper::Install(routerNodes.Get(3));
> ndn::IpFacesHelper::Install(routerNodes.Get(5));
>
>
> ndn::IpFacesHelper::CreateUdpFace (
> Seconds (0.5),
> routerNodes.Get(3),
> routerNodes.Get(5)->GetObject<Ipv4>()->GetAddress(1,0).GetLocal(),
> "/upd-route"
> );
>
> ndn::IpFacesHelper::CreateUdpFace (
> Seconds (0.5),
> routerNodes.Get(0),
> routerNodes.Get(3)->GetObject<Ipv4>()->GetAddress(1,0).GetLocal(),
> "/"
> );
> ndn::IpFacesHelper::CreateUdpFace (
> Seconds (0.5),
> routerNodes.Get(1),
> routerNodes.Get(3)->GetObject<Ipv4>()->GetAddress(1,0).GetLocal(),
> "/"
> );
> ndn::IpFacesHelper::CreateUdpFace (
> Seconds (0.5),
> routerNodes.Get(1),
> routerNodes.Get(3)->GetObject<Ipv4>()->GetAddress(1,0).GetLocal(),
> "/"
> );
>
>
> // Consumer
> ndn::AppHelper consumerHelper ("ns3::ndn::ConsumerCbr");
> // Consumer will request /udp-route1/0, /udp-route1/1, ...
> consumerHelper.SetPrefix ("/upd-route");
> consumerHelper.SetAttribute ("Frequency", StringValue ("1")); // 1
> interests a second
> consumerHelper.Install (routerNodes.Get (0)).Start (Seconds (3));
> consumerHelper.Install (routerNodes.Get (1)).Start (Seconds (3));
> consumerHelper.Install (routerNodes.Get (2)).Start (Seconds (3));
>
>
> // Producer
> ndn::AppHelper producerHelper ("ns3::ndn::Producer");
> // Producer will reply to all requests starting with /prefix
> producerHelper.SetPrefix ("/upd-route");
> producerHelper.SetAttribute ("PayloadSize", StringValue("1024"));
> producerHelper.Install (routerNodes.Get(5)); // last node
>
> Simulator::Stop (Seconds (10));
>
> ndn::L3RateTracer::Install(routerNodes.Get(3),"node.log", Seconds
> (0.1));
>
> Simulator::Run ();
> Simulator::Destroy ();
>
> return 0;
> }
>
> ############################
>
>
> I tried this code and I still obtain the error:
>
> assert failed. cond="cur->tid != tag.GetInstanceTypeId ()",
> file=../src/network/model/packet-tag-list.cc, line=250
> terminate called without an active exception
>
>
> Thank you in advance for your help!
>
> Regards
> Moreno
>
>
> 2014-02-11 20:42 GMT+01:00 Alex Afanasyev <alexander.afanasyev at ucla.edu>:
>
> Hi Moreno,
>>
>> Would you mind sharing a full working scenario that can reproduce the
>> error? Tcp and Udp faces are not comprehensively tested and there could be
>> some bug in them, or there could be something wrong with the scenario too.
>>
>> ---
>> Alex
>>
>> On Feb 11, 2014, at 9:55 AM, Moreno Ambrosin <morambro at gmail.com> wrote:
>>
>> Hi,
>>
>> I'm new with ndnSIM; I'm trying to build a configuration with NDN as an
>> overlay network. For this reason, I installed the Internet stack, all
>> point-to-point links, and assigned an IPv4 address to all nodes.
>> Finally, following this example
>> https://github.com/NDN-Routing/ndnSIM/blob/master/examples/ndn-simple-udp.cc,
>> I tried to configure the FIBs. What I want to achieve, is the following
>> overlay configuration:
>>
>>
>> /some /some/content
>> consumer 1 -------------------> IP:X.X.X.X
>> consumer 2 -------------------> router 1
>> ----------------------------> producer
>> ...
>> consumer n ------------------->
>>
>> I tried to setup the NDN forwarding in the following way:
>>
>>
>> ndn::IpFacesHelper::Install(routerNodes.Get(0));
>> ndn::IpFacesHelper::Install(routerNodes.Get(27));
>> // Install IpFacesHelper on all consumers (saved inside a vector
>> devices)
>> for (int i=0;i<30;i++)
>> {
>> ndn::IpFacesHelper::Install(devices[0].Get(i));
>> }
>>
>> ndn::IpFacesHelper::CreateUdpFace (
>> Seconds (0.5),
>> routerNodes.Get(0),
>>
>> routerNodes.Get(27)->GetObject<Ipv4>()->GetAddress(1,0).GetLocal(),
>> "/some/upd-route"
>> );
>>
>> for (int i=0;i<30;i++) {
>> ndn::IpFacesHelper::CreateTcpFace (
>> Seconds (0.5),
>> devices[0].Get(i),
>>
>> routerNodes.Get(0)->GetObject<Ipv4>()->GetAddress(1,0).GetLocal(),
>> "/some"
>> );
>> }
>>
>> When I run my script making all devices to request a content
>> (with ConsumerCbr application), I obtain the following run-time error:
>>
>> assert failed. cond="cur->tid != tag.GetInstanceTypeId ()",
>> file=../src/network/model/packet-tag-list.cc, line=250
>> terminate called without an active exception
>>
>> What could be the problem?
>> Is there another way to setup the FIB based on IP correctly?
>>
>> Regards
>> Moreno
>> _______________________________________________
>> ndnSIM mailing list
>> ndnSIM at lists.cs.ucla.edu
>> http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
>>
>>
>>
>
>
> --
> Moreno Ambrosin
>
--
Moreno Ambrosin
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