hdr_cmn.htmlhdr_cmn
Bellow is the modified hdr_cmn structure in packet.h for ns-2 version 2.1b2. 
struct hdr_cmn {

  int ptype_; // packet type (see above)
  int size_; // simulated packet size
  int uid_; // unique id
  int error_; // error flag
  double ts_; // timestamp: for q-delay measurement
  double e2e_ts_; // time packet was generated (e2e q-delay)
  int iface_; // receiving interface (label)
  double label_; // Ion Stoica (05/08/97) -- required by CSFQ

  static int offset_; // offset for this header
  inline int& offset() { return offset_; }

  /* per-field member functions */
  inline int& ptype() { return (ptype_); }
  inline int& size() { return (size_); }
  inline int& uid() { return (uid_); }
  inline int& error() { return error_; }
  inline double& timestamp() { return (ts_); }
  inline double& e2e_timestamp() { return (e2e_ts_); }
  inline int& iface() { return (iface_); }
  inline double& label() { return (label_); } // Ion Stoica (05/08/97)
  inline void setlabel(double label) { label_ = label; } // Ion Stoica (05 
  /08/97)

}; 


Ion Stoica
Last modified: Tue Sep 8 18:03:35 EDT 1998