[ndnSIM] Different pits

[Spyridon (Spyros) Mastorakis]

This value will show you the number of PIT entries. An easy way to achieve the desired behavior would be to slightly modify the PIT class. Specifically, you can define an attribute for each PIT instance that would express the maximum number of entries that you can have. 

After that, in the method that you insert an entry to a PIT, you can make a simple check and insert a new entry only if the number of PIT entries is smaller than the maximum defined one. You can take a look here:

https://github.com/NDN-Routing/ndnSIM/blob/master/NFD/daemon/table/pit.cpp#L65

Please let me know shall you need anything else.

--
Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/
Internet Research Laboratory
PhD Computer Science
UCLA




> On May 28, 2015, at 3:54 PM, Lucas De Azevedo Vaccari Simao <lucasavs at id.uff.br> wrote:
> 
> I'm trying to emulate some denial of services attacks, and for that i needed set the size of the pit from each node. And i wanted to show how the attacks would behave in different strategies. 
> Actually i just need to set the value in the node that i expect the attack to happen, but for that i need install different pits in differents nodes. Or change the pit size inside each one someway.
> And i was using the value of m_nItems to check if the pit is full or not. Is that a good idea?
> 
> 2015-05-28 18:42 GMT-03:00 Spyridon (Spyros) Mastorakis <spiros.mastorakis at gmail.com>:
> Hi,
> 
> NFD does not limit the size of a PIT. If you want to control the incoming Interest rate, you could code a forwarding strategy for this purpose. May I ask why would you like to limit the size of a PIT?
> 
> --
> Spyridon (Spyros) Mastorakis
> Personal Website: http://cs.ucla.edu/~mastorakis/
> Internet Research Laboratory
> PhD Computer Science
> UCLA
> 
> > On May 28, 2015, at 2:36 PM, Lucas De Azevedo Vaccari Simao <lucasavs at id.uff.br> wrote:
> >
> > I was wondering if is possible to work with different pits in this version of the simulator. More precisely, i need to change an size attribute (the pit class was modified) in one consumer, or at least install different pits in different nodes.
> > Whenever i try to change the attribute of one specific node in the simulator, the same attribute is changed in all nodes.
> >
> > btw, i'm trying to use
> > consumerWhoNeedPITSizeChanged->GetObject<ndn::L3Protocol()->getForwarder()->getPit() to get the pit i need to change.
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> 
> 
> 
> 
>