[ndnSIM] Getting PIT & CS Size simultaneously?

[Narges Mehran]

Got it! Tnx a million Spyros..

On 2/13/15, Spyridon (Spyros) Mastorakis <spiros.mastorakis at gmail.com> wrote:
> Hello,
>
> when the number of data chunks included in a CS is growing, the router
> receives data packets for interests sent towards the data producers. That is
> to say, the pending interests included in the PIT are satisfied (thus
> deleted from the PIT), because the requested chunks of data were received.
> In this way, the CS size is growing, while the pending interests included in
> PIT are satisfied.
>
> On the other hand, when an interest is sent, but it is not satisfied by a
> data packet (i.e., a data packet is not received), the pending interest will
> remain in PIT until a time out occurs. In this way, the number of PIT
> entries will become bigger, while no data packets would be received.
>
> --
> Spyridon (Spyros) Mastorakis
> Personal Website: http://cs.ucla.edu/~mastorakis/
> Internet Research Laboratory
> PhD Computer Science
> UCLA
>
>
>
>
>> On Feb 13, 2015, at 9:03 AM, Narges Mehran <narges.mehran at gmail.com>
>> wrote:
>>
>> Hello everyone,
>>
>> I have a question: why can't I see the PIT and CS Size simultaneously,
>> It means I can see CS Size in normal way but when I want to see the
>> PIT size, I have to change the prefix of producer! e.g.,
>>
>> Names::Add ("consumer1", nodes.Get (0));
>> Names::Add ("router"   , nodes.Get (1));
>> Names::Add ("producer1" , nodes.Get (2));
>>
>> Ptr<Node> consumer1 = Names::Find<Node> ("consumer1");
>> Ptr<Node> producer1 = Names::Find<Node> ("producer1");
>>
>> // Install CCNx stack on all nodes
>> ndn::StackHelper ndnHelper;
>> ndnHelper.SetDefaultRoutes (true);
>> ndnHelper.SetPit ("ns3::ndn::pit::Persistent::AggregateStats");
>> ndnHelper.SetForwardingStrategy ("ns3::ndn::fw::Flooding");
>> ndnHelper.SetContentStore ("ns3::ndn::cs::Lru::AggregateStats",
>>                             "MaxSize", "5"); //Size = 5!
>> ndnHelper.InstallAll ();
>>
>>
>> //  Consumer1
>> ndn::AppHelper consumerHelper ("ns3::ndn::ConsumerCbr");
>> //  Consumer will request /prefix/0, /prefix/1, ...
>> consumerHelper.SetPrefix ("/prefix");
>> consumerHelper.SetAttribute ("Frequency", StringValue ("10")); // 10
>> interests a second
>> consumerHelper.SetAttribute ("MaxSeq",StringValue("20"));
>> consumerHelper.Install (consumer1); // first node
>>
>> // Producer1
>> ndn::AppHelper producerHelper ("ns3::ndn::Producer");
>> // Producer will reply to all requests starting with /prefix
>> producerHelper.SetPrefix ("/prefix123");
>> //////////////////////////////why???\\\\\\\\\\\\\\
>> producerHelper.SetAttribute ("PayloadSize", StringValue("1024"));
>> producerHelper.Install (producer1);
>> .
>> .
>> .
>> /////////////////output in abnormal way\\\\\\\\\\\\\\\\\\\\\\\\
>> PIT Size         CS Size
>> 30                  0
>> \\\\\\\\\\\\\\\\\\/////////////////////////////////////////
>>
>> /////////////////output in normal way\\\\\\\\\\\\\\\\\\\\\\\\ ----->
>> producerHelper.SetPrefix ("/prefix");
>> PIT Size         CS Size
>> 0                  20
>> \\\\\\\\\\\\\\\\\////////////////////////////////////////
>>
>> Besides, when the max size of CS is "5", why the output is "20"?
>>
>> I don' know where my problem is! Any help?
>>
>> Tnx in advance
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>
>