I don't think so, because any time two NIDs map to the same node, LNET will pick a 'best' interface (based on hop count and other things) and always use that interface. In the normal case, you would subnet to separate the interfaces and use both, but you can't in this case as ib0 is the same IP for boh. Really would be best to have a second IP for TCP.<div>
cliffw</div><div><br><br><div class="gmail_quote">On Wed, Mar 28, 2012 at 9:01 AM, Hayes, Bob <span dir="ltr"><<a href="mailto:bob.hayes@intel.com">bob.hayes@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">When we added ‘options lnet networks=o2ib(ib0),tcp1(ib0)’ to the MDS and the OSS’s, communications from the nodes using tcp1 would not be returned by the OSS’s.
We need to use two protocols over the same interface. Is this possible?<u></u><u></u></span></p><div class="im">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif";color:#0f243e">Bob Hayes<u></u><u></u></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif";color:#1f497d">HPC Sys. Admin.<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif";color:#1f497d">Intel Corp Software & Services Group/DRD/CRT-DC
<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif";color:#1f497d">DP3-307-H7 Tel: <a href="tel:%28253%29371-3040" value="+12533713040" target="_blank">(253)371-3040</a>
<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif";color:#1f497d">2800 N Center Dr Fax: <a href="tel:%28253%29371-4647" value="+12533714647" target="_blank">(253)371-4647</a>
<u></u><u></u></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif";color:#1f497d">DuPont WA 98327
<i><a href="mailto:mallick.arigapudi@intel.com" target="_blank"><span style="font-family:"Times New Roman","serif"">bob.hayes@intel.com</span></a></i><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
</div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Cliff White [mailto:<a href="mailto:cliffw@whamcloud.com" target="_blank">cliffw@whamcloud.com</a>]
<br>
<b>Sent:</b> Wednesday, March 21, 2012 9:28 AM<br>
<b>To:</b> Hayes, Bob<br>
<b>Cc:</b> <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.org</a><br>
<b>Subject:</b> Re: [Lustre-discuss] Seeking LNET router recomendations<u></u><u></u></span></p><div><div class="h5">
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Or to put it another way, if your OSS systems can already 'see' both IB and IPoIB networks the most cost<u></u><u></u></p>
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<p class="MsoNormal">effective, high performance solution would be to add the necessary interface and put your MDS/MGS on both networks also.<u></u><u></u></p>
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<p class="MsoNormal">No need for routers, no performance impact. <u></u><u></u></p>
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<p class="MsoNormal">cliffw<u></u><u></u></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><u></u> <u></u></p>
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<p class="MsoNormal">On Tue, Mar 13, 2012 at 11:25 AM, Hayes, Bob <<a href="mailto:bob.hayes@intel.com" target="_blank">bob.hayes@intel.com</a>> wrote:<u></u><u></u></p>
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<div>
<p class="MsoNormal">Are there any recommendations or guidelines for sizing a LNET routing facility.<u></u><u></u></p>
<p class="MsoNormal">~400 nodes, 8 OSS (dual socket E5 w/48GB RAM), 24 OST (10spindle RAID6 over SRP), 1 MGS/MDT<u></u><u></u></p>
<p class="MsoNormal">How much load does LNET routing put on a system?<u></u><u></u></p>
<p class="MsoNormal">If I make the 8 OSS systems do double duty as IB to IPoIB routers, will it have much impact on performance?<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<b><span style="font-size:8.0pt;font-family:"Tahoma","sans-serif"">Bob Hayes</span></b><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<span style="font-size:8.0pt;font-family:"Tahoma","sans-serif"">HPC Sys. Admin.</span><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<span style="font-size:8.0pt;font-family:"Tahoma","sans-serif"">Intel Corp Software & Services Group/DRD/CRT-DC
</span><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<span style="font-size:8.0pt;font-family:"Tahoma","sans-serif"">DP3-307-H7 Tel:
<a href="tel:%28253%29371-3040" target="_blank">(253)371-3040</a>
</span><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<span style="font-size:8.0pt;font-family:"Tahoma","sans-serif"">2800 N Center Dr Fax:
<a href="tel:%28253%29371-4647" target="_blank">(253)371-4647</a>
</span><u></u><u></u></p>
<p class="MsoNormal" style="text-autospace:none">
<span style="font-size:8.0pt;font-family:"Tahoma","sans-serif"">DuPont WA 98327
<i><a href="mailto:mallick.arigapudi@intel.com" target="_blank"><span style="font-family:"Times New Roman","serif"">bob.hayes@intel.com</span></a></i></span><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
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<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
</div>
<p class="MsoNormal">-- <br>
cliffw<u></u><u></u></p>
<div>
<p class="MsoNormal">Support Guy<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">WhamCloud, Inc. <u></u><u></u></p>
</div>
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<p class="MsoNormal"><a href="http://www.whamcloud.com" target="_blank">www.whamcloud.com</a><u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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</div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br>cliffw<div>Support Guy</div><div>WhamCloud, Inc. </div><div><a href="http://www.whamcloud.com" target="_blank">www.whamcloud.com</a></div><div><br></div><br>
</div>