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<TITLE>RE: [openib-general] [PATCH] agent: Add IB ping server agent</TITLE>
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<P><FONT SIZE=2>Hi Hal,</FONT>
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<P><FONT SIZE=2>If the response would have included the guid and lid of the responding port this could potentially be used to validate path record cache in a distributed manner...</FONT></P>
<P><FONT SIZE=2>Also could help in diagnostics.</FONT>
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<P><FONT SIZE=2>Eitan Zahavi</FONT>
<BR><FONT SIZE=2>Design Technology Director</FONT>
<BR><FONT SIZE=2>Mellanox Technologies LTD</FONT>
<BR><FONT SIZE=2>Tel:+972-4-9097208</FONT>
<BR><FONT SIZE=2>Fax:+972-4-9593245</FONT>
<BR><FONT SIZE=2>P.O. Box 586 Yokneam 20692 ISRAEL</FONT>
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<P><FONT SIZE=2>> -----Original Message-----</FONT>
<BR><FONT SIZE=2>> From: Roland Dreier [<A HREF="mailto:roland@topspin.com">mailto:roland@topspin.com</A>]</FONT>
<BR><FONT SIZE=2>> Sent: Thursday, March 17, 2005 6:39 PM</FONT>
<BR><FONT SIZE=2>> To: Hal Rosenstock</FONT>
<BR><FONT SIZE=2>> Cc: openib-general@openib.org</FONT>
<BR><FONT SIZE=2>> Subject: Re: [openib-general] [PATCH] agent: Add IB ping server agent</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Hal> One more thing: This is analagous to the (ICMP) ping server</FONT>
<BR><FONT SIZE=2>> Hal> built into the kernel.</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Sort of, except it's not part of the IB spec. ICMP and in particular</FONT>
<BR><FONT SIZE=2>> ICMP echo support is a "MUST" for any RFC-compliant IP implementation.</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> One other thought just occurred to me -- what advantages does this</FONT>
<BR><FONT SIZE=2>> vendor-specific ping MAD have over a LID-routed NodeDescription get query?</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> - R.</FONT>
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