[ndnSIM] confused by how to modify the FIB

[槛外人]

Hi friends,
I want to modify the FIB and add some items in this function:
  FibImpl::Add (const Ptr<const Name> &prefix, Ptr<Face> face, int32_t metric)
 1、How to add  items like some details more than name prefix of the recevied data it the entry .
 2、How to store them (name prefix,ect.) in FIB . 
Best Regards,
johnny
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