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<p class="MsoNormal"><span style="font-size:11.0pt">Dear SLP WG members,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">John Pietras has what I believe are some good points below.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Please let me know your opinion of his proposed changes below<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks!<br>
Greg<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Chair SLP WG<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">John Pietras <john.pietras@gst.com><br>
<b>Date: </b>Tuesday, October 27, 2020 at 2:23 PM<br>
<b>To: </b>"Kazz, Greg J (US 312B)" <greg.j.kazz@jpl.nasa.gov><br>
<b>Subject: </b>[EXTERNAL] RE: Updated TM & AOS 5-year review files from SLP WG meeting Oct 27<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F4E79">Dear Greg and all,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">I’ve taken a quick look at the updates TM and AOS books and I found a typo and a statement that I think is misleading.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">First the typo – As modified, the first sentence of the second paragraph under 2.2.3.6 of the AOS book now reads “For a given service instance, only one user, identified with the GVCID of the Virtual Channel,
and each VCF Service instance on a physical channel must utilize a unique GVCID value.” The phrase “can use this service on a Virtual Channel” has been erroneously deleted.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">The sentence should read “For a given service instance, only one user, identified with the GVCID of the Virtual Channel,
<u>can use this service on a Virtual Channel,</u> and each VCF Service instance on a physical channel must utilize a unique GVCID value.”</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">What I believe to be a misleading statement appears in two forms in both the AOS and TM books. The first sentence of the third paragraph under 2.2.3.6 of the AOS book now reads “The Virtual Channel Frame Service
transfers the independently created AOS Transfer Frames through a space link, possibly together with AOS Transfer Frames identified by other GVCID values created by the service provider itself.”
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">My interpretation of this sentence is that there can be only one instance of the VCF Service per space link, with the implication that all other VCs on the space link are generated “by the service provider itself”.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">I believe that a more accurate, less ambiguous statement is
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">“<u>Each</u> Virtual Channel Frame Service
<u>instance</u> transfers the independently created AOS Transfer Frames through a space link, possibly together with AOS Transfer Frames identified by other GVCID values created
<u>by users of other VCF Service instances, users of Master Channel Frame service instances (see 2.2.3.7), and/or</u> by the service provider itself.”</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">If my suggestion is accepted, the same change should be applied to 2.2.3.6 of the TM book.
</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">The analogous situation applies to the MCF Service. The equivalent modification would be to change first sentence of the third paragraph under 2.2.3.7 of the AOS book (and 2.2.9 of the TM book) to read “<u>Each</u>
Master Channel Frame Service <u>instance</u> transfers the independently created AOS Transfer Frames through the space link, possibly together with AOS Transfer Frames identified by other MCID values created
<u>by users of other MCF Service instances or</u> by the service provider itself.“</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79">John </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F4E79"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> SLS-SLP [mailto:sls-slp-bounces@mailman.ccsds.org]
<b>On Behalf Of </b>Kazz, Greg J (US 312B) via SLS-SLP<br>
<b>Sent:</b> Tuesday, October 27, 2020 12:43 PM<br>
<b>To:</b> Kazz, Greg J (US 312B) via SLS-SLP <sls-slp@mailman.ccsds.org><br>
<b>Subject:</b> [Sls-slp] Updated TM & AOS 5-year review files from SLP WG meeting Oct 27</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Dear SLP WG,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Attached please find two files as a result of the 5-year review:<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoNormal" style="mso-list:l0 level1 lfo3">Updated 132.0-B TM SDLP book modified during our SLP WG meeting today on Oct 27.<o:p></o:p></li><li class="MsoNormal" style="mso-list:l0 level1 lfo3">Updated 732.0-B AOS SDLP book modified during our SLP WG meeting today on Oct 27.<o:p></o:p></li></ol>
<p class="MsoListParagraph"> <o:p></o:p></p>
<p class="MsoNormal">When I have a chance, I will load both of them to the SLP WG CWE directory under the Fall 2020 meeting.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Greg Kazz</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Principal Engineer</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Technical Group Supervisor,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">PSSE/EEISE/PPSE (312B)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Jet Propulsion Laboratory</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">4800 Oak Grove Dr., M/S 301-490</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="ES-MX" style="font-size:11.0pt">Pasadena, CA 91109</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="ES-MX" style="font-size:11.0pt">1+(818)393 6529(voice)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">1</span><span lang="ES-MX" style="font-size:11.0pt">+(818)393 6871(fax)</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="ES-MX" style="font-size:11.0pt">email: <a href="mailto:greg.j.kazz@jpl.nasa.gov">
greg.j.kazz@jpl.nasa.gov</a> </span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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