 boundary. Also a
'zero termination' on a packet size that is an even multiple of 255
must appear even if the lacing value appears in the next page as a
zero-length continuation of the current packet. The header flag
should be set to 0x01 to indicate that the packet spanned, even though
the span is a nil case as far as data is concerned.</p>

<p>The encoding looks odd, but is properly optimized for speed and the
expected case of the majority of packets being between 50 and 200
bytes (note that it is designe