e of &lt; 255 marks the end of the
packet after that many additional bytes. A packet of 255 bytes (or a
multiple of 255 bytes) is terminated by a lacing value of 0:</p>

<pre><tt>
raw packet:
  _______________________________
 |________packet data____________|          255 bytes

lacing values: 255, 0
</tt></pre>

<p>Note also that a 'nil' (zero length) packet is not an error; it
consists of nothing more than a lacing value of zero in the header.</p>

<h3>Packets spanning pages</h3>

<p>Packets are not rest