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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It is just stops seeing ACK’s come back.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Socket[35] Async IO started successfully|<CLID::CCM1-Cluster><NID::TFTP><LVL::Significant><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No ACK, Socket[35] Serving File[TNUXH-1.4.1SR1.SBN] Expecting block[359] Retrying [1] times...|<CLID:: CCM1-Cluster><NID::TFTP><LVL::Detailed><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No ACK, Socket[35] Serving File[TNUXH-1.4.1SR1.SBN] Expecting block[359] Retrying [2] times...|<CLID:: CCM1-Cluster><NID::TFTP><LVL::Detailed><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No ACK, Socket[35] Serving File[TNUXH-1.4.1SR1.SBN] Expecting block[359] Retrying [3] times...|<CLID:: CCM1-Cluster><NID::TFTP><LVL::Detailed><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No ACK, Socket[35] Serving File[TNUXH-1.4.1SR1.SBN] Expecting block[359] Retrying [4] times...|<CLID:: CCM1-Cluster><NID::TFTP><LVL::Detailed><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No ACK, Socket[35] Serving File[TNUXH-1.4.1SR1.SBN] Expecting block[359] Retrying [5] times...|<CLID:: CCM1-Cluster><NID::TFTP><LVL::Detailed><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No ACK, Socket[35] Serving File[TNUXH-1.4.1SR1.SBN] Expecting block[359] Retrying [6] times...|<CLID:: CCM1-Cluster><NID::TFTP><LVL::Detailed><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>No ACK, Closing Socket[35] Serving File[TNUXH-1.4.1SR1.SBN] After[6]retries...|<CLID:: CCM1-Cluster><NID::TFTP><LVL::Detailed><MASK::0004><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It is almost like it is the phone that stops communicating, but I have tried all of the versions of firmware for these wifi phones and they are all the same.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>-C<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> Wes Sisk [mailto:wsisk@cisco.com] <br><b>Sent:</b> Tuesday, March 27, 2012 1:13 PM<br><b>To:</b> c3voip<br><b>Cc:</b> cisco-voip@puck.nether.net<br><b>Subject:</b> Re: [cisco-voip] ASA Phone-Proxy, CUCM 7.1(5b)SU4, and 7921/7925<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>sounds like a timing issue. historically when turning on debugs works around a problem the underlying reason is that debugs slow down processing sufficiently to mask the race condition.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>one tidbit does come to mind here - tftp retransmits. The tftp server on cucm has very limited retransmits, like maybe one.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>when TFTP fails what do debugs, packet captures, or ccm TFTP server traces show?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>/wes<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mar 26, 2012, at 2:36 PM, c3voip wrote:<o:p></o:p></p></div><p class=MsoNormal><br><br><span class=apple-style-span><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif"'><o:p></o:p></span></span></p><div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I have upgraded from CUCM 7.1(2a) to CUCM 7.1(5b)SU4 without any issues, but now I am having issues loading firmware to my 7921 and 7925 wifi phones through my ASA5520 with the Phone Proxy feature. </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Here comes the curveball, if I turn on phone-proxy tftp debugs on the ASA everything works normally, but nothing has changed on the ASA so why should this allow tftp to work?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I have taken packet captures from both sides of the ASA, without the debug turned on, and the wifi phone just looks like it stops ACK’ing the tftp packets.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Does anyone else have a setup similar to mine or has anyone experienced anything like this?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Thanks,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>-C<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif"'>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br><a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a><o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>