it consists of nothing more than a
   lacing value of zero in the header.

   The encoding is optimized for speed and the expected case of the
   majority of packets being between 50 and 200 bytes large.  This is a
   design justification rather than a recommendation.  This encoding
   both avoids imposing a maximum packet size as well as imposing
   minimum overhead on small packets.  In contrast, e.g., simply using
   two bytes at the head of every packet and having a max packet size of
   32 kBytes would always penalize small packets (< 255 bytes, the
   typical case) with twice the segmentation overhead.  Using the lacing
   values as suggested, small packets see the minimum possible byte-
   aligned overhead (1 byte) and large packets (>512 bytes) see a fairly
   constant ~0.5% overhead on encoding space.




























Pfeiffer                     Informational                      [Page 7]