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<DIV dir=ltr align=left><SPAN class=227284414-06122007><FONT face=Tahoma
color=#0000ff size=2>I guess it depends upon how many cells there are. Ok, I can
buy this one.</FONT></SPAN></DIV>
<DIV> </DIV>
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<DIV align=left><FONT face=Tahoma size=2></FONT> </DIV>
<DIV align=left><FONT face=Tahoma size=2>Stuart D. Fowell BEng MBCS</FONT></DIV>
<DIV align=left><FONT face=Tahoma size=2>Distributed, Real-Time Embedded (DRE)
Consultant</FONT></DIV>
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<FONT face=Tahoma size=2><B>From:</B> Scott Burleigh
[mailto:Scott.Burleigh@jpl.nasa.gov] <BR><B>Sent:</B> 05 December 2007
15:56<BR><B>To:</B> Stuart Fowell<BR><B>Subject:</B> [Fwd: [Sis-ams] AMS RID
BNSC-46]<BR></FONT><BR></DIV>
<DIV></DIV><BR><BR>-------- Original Message --------
<TABLE class=moz-email-headers-table cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TH vAlign=baseline noWrap align=right>Subject: </TH>
<TD>[Sis-ams] AMS RID BNSC-46</TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>Date: </TH>
<TD>Wed, 17 Oct 2007 14:46:41 -0700</TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>From: </TH>
<TD>Scott Burleigh <A class=moz-txt-link-rfc2396E
href="mailto:Scott.Burleigh@jpl.nasa.gov"><Scott.Burleigh@jpl.nasa.gov></A></TD></TR>
<TR>
<TH vAlign=baseline noWrap align=right>To: </TH>
<TD><A class=moz-txt-link-abbreviated
href="mailto:sis-ams@mailman.ccsds.org"></A></TD></TR></TBODY></TABLE><BR><BR>Our
third residual RID is this one:<BR>
<BLOCKQUOTE>
<P class=MsoPlainText>Sending a separate "cell_spec" MPDU for each cell in the
message space should be optimised to sending a single MPDU that contains a
list of the registrars for the cells, i.e. concatenate the
"cell_spec"s.<BR></P></BLOCKQUOTE><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'">My proposed disposition
is this:<BR></SPAN>
<BLOCKQUOTE><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'">Not
accepted.<SPAN> </SPAN>The proposed change would complicate the protocol
by adding another MPDU format; currently, the cell_spec MPDU can be used in
both registrar registration and registrar location.<SPAN> </SPAN>The
reduction in network traffic would be insignificant, and processing the
cell_spec MPDU would become appreciably more complex.</SPAN><BR><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'"></SPAN></BLOCKQUOTE><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'">This is actually quite
separate from the node registration protocol changes that we hammered out during
the meeting: registrar registration is a procedure that occurs very rarely and
will involve a tiny number of message exchanges unless the message space is
truly mammoth, which I very much doubt will happen in an on-board
environment. I feel pretty strongly that this is a false optimization, and
I would really like to set it aside.<BR><BR>Scott<BR></SPAN><BR></BODY></HTML>