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<p class="MsoNormal"><span style="font-size:11.0pt">So I would say ‘multiplexing’ for what you’re describing in 5.2.2?<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">The question of 5.4 has to do with tree formation in the presence of simplex links, probably better to just leave it.<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">Cool, thx!<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"> --keith<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">"Jeremy.Mayer@dlr.de" <Jeremy.Mayer@dlr.de><br>
<b>Date: </b>Tuesday, December 13, 2016 at 6:44 AM<br>
<b>To: </b>Keith Scott <kscott@mitre.org>, "rodney.grubbs@nasa.gov" <rodney.grubbs@nasa.gov><br>
<b>Cc: </b>"sis-mia@mailman.ccsds.org" <sis-mia@mailman.ccsds.org><br>
<b>Subject: </b>RE: Questions on Video Streaming Green Book<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Hey Keith,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">I can answer some of these:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2: The DLR transparent gateway – encapsulates UDP datagrams and is otherwise agnostic to the video protocol running over UDP, yes?
<b>– </b><i>Yes, I touch upon that is section 5.2.1. Should I explain more in 5.2?</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2.1: the comment in the second paragraph – is the addition correct or is it the gateway timestamp that’s being used (or something else)? <i>- Edited.</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2.2: where you say that MPEG-TS and BP are doing some of the same things (robustness for error-recovery and interleaving) – can you say a bit more on the implications of that?
<i>– Edited.</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2.2: BP does interleaving? I’m thinking ‘traditional’ interleaving where data items are assigned to a matrix row-by-row and read out column-by-column once the matrix is full. I think you’re thinking of
something else – can you tell me what it is you mean? <i>– In the sense of sequentially interspersing different channels on the wire, I would say that BP does perform that task, albeit not in a consistent (row in, column out) fashion. I would be happy to rephrase,
but am drawing a blank as to a better choice of words </i></span><i><span style="font-size:11.0pt;font-family:Wingdings">J</span></i><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.4: probably a question for later.
<i>– All of that section?</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">6.1: 10% BER w/ what I assume is LTP red – how does that EVER succeed? Chances of getting 100 Bytes through correctly at 10% BER are really low.
<i>If the buffer is longer than 2x OWLT, it’s possible. We also used short GOP structures for some testing.There was an error in this section, which has been corrected. Thanks for the eyes.</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">A new copy is included.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Jeremy</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:10.0pt;font-family:Tahoma">From:</span></b><span style="font-size:10.0pt;font-family:Tahoma"> Scott, Keith L. [mailto:kscott@mitre.org]
<br>
<b>Sent:</b> Montag, 12. Dezember 2016 18:49<br>
<b>To:</b> Grubbs, Rodney P. (MSFC-EO50); Mayer, Jeremy<br>
<b>Cc:</b> sis-mia@mailman.ccsds.org<br>
<b>Subject:</b> Questions on Video Streaming Green Book</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Hey,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Attached are some light edits and some questions about the Bundle Streaming Requirements Green Book (the comments in the markup). Since CESG review is the only thing the Green Book goes through, can I get
your feedback on the commented items before I submit to CESG?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Summary of questions:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2: The DLR transparent gateway – encapsulates UDP datagrams and is otherwise agnostic to the video protocol running over UDP, yes?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2.1: the comment in the second paragraph – is the addition correct or is it the gateway timestamp that’s being used (or something else)?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2.2: where you say that MPEG-TS and BP are doing some of the same things (robustness for error-recovery and interleaving) – can you say a bit more on the implications of that?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.2.2: BP does interleaving? I’m thinking ‘traditional’ interleaving where data items are assigned to a matrix row-by-row and read out column-by-column once the matrix is full. I think you’re thinking of
something else – can you tell me what it is you mean?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5.4: probably a question for later.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">6.1: 10% BER w/ what I assume is LTP red – how does that EVER succeed? Chances of getting 100 Bytes through correctly at 10% BER are really low.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> --keith</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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