[ndnSIM] Fixing PIT size

[Alex Afanasyev]

For this, you would need to extensively hack the embedded ndnSIM's NFD. Specifically, starting around line 127 in ndnSIM/NFD/daemon/fw/forwarder.cpp you would need to add logic of limiting PIT and throughout figure out a way to forward without relying on PIT entry.  PIT entry is quite fundamental..  

One workaround I may see is you create a PIT entry for forwarding, but immediately expire it (i.e., it is created for all forwarding and pipeline purposes, but then removed). May be this way it would be easier to hack in.  But all of this would be in forwarder.cpp file.

-
Alex

> On Mar 5, 2022, at 4:19 PM, Abhinav Anand via ndnSIM <ndnsim at lists.cs.ucla.edu> wrote:
> 
> Hello Everyone
> 
> I'm trying to write a simulation in which:
> A) I want to fix the size(No of entries) of the PIT table on some specified nodes.
> B) Once the size of the PIT is full and an interest packet arrives, I still want the node to still forward the packet to the next node without creating a PIT entry(since the table is already full).
> 
> How can I do this?
> 
> Thanks in advance for the help.
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