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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Dear Peter,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">The host device may be a RRH for 4G or 5G solution, and compute node is act as MEC.  So each RRHs need bring in clock source.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">In this scenario StarlingX has suggest configure or topologic??<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Below is scenario:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">GM </span><span lang="EN-US" style="font-family:Wingdings;color:#1F497D">ß</span><span lang="EN-US" style="font-family:Wingdings;color:#1F497D">à</span><span lang="EN-US" style="color:#1F497D"> 
 All-In-One(Duplex)   </span><span lang="EN-US" style="font-family:Wingdings;color:#1F497D">ß</span><span lang="EN-US" style="font-family:Wingdings;color:#1F497D">à</span><span lang="EN-US" style="color:#1F497D">  RRHs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">           |                                      (SRIOV interface)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:50.4pt;mso-para-margin-left:0gd;text-indent:-18.0pt;mso-list:l3 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="font-family:Wingdings;color:#1F497D"><span style="mso-list:Ignore">è<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="color:#1F497D">All-In-One(Duplex)  
</span><span lang="EN-US" style="font-family:Wingdings;color:#1F497D">ß</span><span lang="EN-US" style="font-family:Wingdings;color:#1F497D">à</span><span lang="EN-US" style="color:#1F497D"> RRHs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best Reagrds,<o:p></o:p></span></p>
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<![if !supportLists]><span lang="EN-US" style="font-size:14.0pt;color:#4472C4"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">       
</span></span></span><![endif]><b><i><span lang="EN-US" style="font-size:14.0pt;color:#4472C4">Philip Wang<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:#1F497D">---<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="color:#1F497D">Alpha Networks Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">TEL: 886-3-5636666 EXT:6403<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Peters, Matt <Matt.Peters@windriver.com>
<br>
<b>Sent:</b> Friday, November 8, 2019 9:12 PM<br>
<b>To:</b> Philip_Wang </span><span style="font-size:11.0pt;font-family:"新細明體",serif">王季培</span><span lang="EN-US" style="font-size:11.0pt"> (HQ) <Philip_Wang@alphanetworks.com>; starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> Re: [Starlingx-discuss] How to configure compute note PTP as Master<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">Hi Philip,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">There is currently no mechanism to configure a specific compute host to be a PTP master.  That would require enhancements to the current PTP configuration since the current default state is to
 set up only the internal management network as a PTP slave, and currently that configuration cannot be overridden by the user.  We are looking at adding per-interface PTP configuration in the future but depending on the specific device on the compute that
 you want to configure as a PTP master, it may not specifically address this scenario.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">To help clarify the use case:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">Can you describe the clocking architecture in more detail?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">What is the device that will be on the compute host that will bring in the clocking source?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt">Are you looking to redistribute the clock from the compute, so that it behaves as a boundary clock or will it be a grand master?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-CA" style="color:black">From: </span></b><span lang="EN-CA" style="color:black">"</span><span lang="EN-US"><a href="mailto:Philip_Wang@alphanetworks.com"><span lang="EN-CA">Philip_Wang@alphanetworks.com</span></a></span><span lang="EN-CA" style="color:black">"
 <</span><span lang="EN-US"><a href="mailto:Philip_Wang@alphanetworks.com"><span lang="EN-CA">Philip_Wang@alphanetworks.com</span></a></span><span lang="EN-CA" style="color:black">><br>
<b>Date: </b>Wednesday, November 6, 2019 at 9:04 AM<br>
<b>To: </b>"</span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span lang="EN-CA">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-CA" style="color:black">" <</span><span lang="EN-US"><a href="mailto:starlingx-discuss@lists.starlingx.io"><span lang="EN-CA">starlingx-discuss@lists.starlingx.io</span></a></span><span lang="EN-CA" style="color:black">><br>
<b>Subject: </b>[Starlingx-discuss] How to configure compute note PTP as Master<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hi Team,</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Below is PTP architecture in StarlingX.</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img border="0" width="611" height="338" style="width:6.3666in;height:3.5166in" id="圖片_x0020_1" src="cid:image003.png@01D59880.725E5BC0" alt="cid:image003.png@01D593C1.406FFD30"></span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">We need connect a host device that need PTP time sync on compute node.</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But in StarlingX compute node is slave.</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo4">
<![if !supportLists]><span lang="EN-CA"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">       
</span></span></span><![endif]><span lang="EN-US">How can we configure or modified PTP in StarlingX let compute node can be Master/Slave BC mode.</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo4">
<![if !supportLists]><span lang="EN-CA"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">       
</span></span></span><![endif]><span lang="EN-US">Or what architecture should be in StarlingX support host device need PTP time sync.</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best Reagrds,</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo2">
<![if !supportLists]><span lang="EN-CA"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">       
</span></span></span><![endif]><b><i><span lang="EN-US" style="font-size:14.0pt;color:#4472C4">Philip Wang</span></i></b><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">---</span></b><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Alpha Networks Inc.</span></b><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">TEL: 886-3-5636666 EXT:6403</span><span lang="EN-CA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="EN-CA"><o:p></o:p></span></p>
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