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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Thanks for the advise! <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Peter Tonoli [mailto:peter@medstv.unimelb.edu.au] <br><b>Sent:</b> Tuesday, 21 January 2014 12:40 PM<br><b>To:</b> Dylan Chidgey<br><b>Cc:</b> ausnog@lists.ausnog.net<br><b>Subject:</b> Re: [AusNOG] Cisco 6500 redundant supervisor<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='color:black'>Hi Dylan,<o:p></o:p></span></p><div><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>It *shouldn't*, but in rare cases, it can. There have been versions of IOS with known crashes of the running supervisor crashing when a 2nd sup has been installed - I've seen it happen once. I'd schedule the install out of hours.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>The usual caveat applies with cards being installed incorrectly, too quickly / slowly.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>Cheers,<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:black'>Peter.<o:p></o:p></span></p><div class=MsoNormal align=center style='text-align:center'><span style='color:black'><hr size=2 width="100%" align=center id=zwchr></span></div><blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='color:black'>From: </span></b><span style='color:black'>"Dylan Chidgey" <<a href="mailto:dylan.chidgey@cirruscomms.com.au">dylan.chidgey@cirruscomms.com.au</a>><br><b>To: </b>"Peter Tonoli" <<a href="mailto:peter@medstv.unimelb.edu.au">peter@medstv.unimelb.edu.au</a>><br><b>Sent: </b>Tuesday, 21 January, 2014 12:31:48 PM<br><b>Subject: </b>RE: [AusNOG] Cisco 6500 redundant supervisor</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Hi Peter,</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Currently it has a single Sup720 and I have spare lying around that I would like to install just wanting to know whether the introduction of a 2<sup>nd</sup> would cause a reload or any disruption to traffic etc.</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> Peter Tonoli [<a href="mailto:peter@medstv.unimelb.edu.au">mailto:peter@medstv.unimelb.edu.au</a>] <br><b>Sent:</b> Tuesday, 21 January 2014 12:29 PM<br><b>To:</b> Dylan Chidgey<br><b>Subject:</b> Re: [AusNOG] Cisco 6500 redundant supervisor</span><span style='color:black'><o:p></o:p></span></p></div></div><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><div><p class=MsoNormal><span style='color:black'>Hi Dylan,<o:p></o:p></span></p><div><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>Not sure what you mean 'normal switch operation'? It's more the opposite. Have a supervisor fail, and the warm spare, should it be configured that way, will kick in. With little if any traffic dropped.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>Cheers,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'>Peter.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><div class=MsoNormal align=center style='text-align:center'><span style='color:black'><hr size=2 width="100%" align=center></span></div><blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 4.0pt;margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='color:black'>From: </span></b><span style='color:black'>"Dylan Chidgey" <<a href="mailto:dylan.chidgey@cirruscomms.com.au" target="_blank">dylan.chidgey@cirruscomms.com.au</a>><br><b>To: </b><a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a><br><b>Sent: </b>Tuesday, 21 January, 2014 12:22:09 PM<br><b>Subject: </b>[AusNOG] Cisco 6500 redundant supervisor<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Hi All,<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Just wondering if anyone with experience with running Cisco 6500s with redundant supervisors could tell me if introducing a 2<sup>nd</sup> supervisor will disrupt normal switch operation?<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><br>Dylan.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'><br>_______________________________________________<br>AusNOG mailing list<br><a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br><a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a></span><span style='color:black'><o:p></o:p></span></p></blockquote><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'><br><br><br>-- </span><span style='color:black'><o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'>Peter Tonoli < <a href="mailto:peter@medstv.unimelb.edu.au" target="_blank">peter@medstv.unimelb.edu.au</a> > +61-3-9288-2399 <br>IT Manager <br>The University of Melbourne - Eastern Hill Academic Centre, St. Vincent's Institute and O'Brien Institute </span><span style='color:black'><o:p></o:p></span></p></div></div></div><div class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'><hr size=1 width="100%" noshade style='color:#ACA899' align=center></span></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'>No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com" target="_blank">www.avg.com</a><br>Version: 2014.0.4259 / Virus Database: 3681/7016 - Release Date: 01/19/14</span><span style='color:black'><o:p></o:p></span></p></blockquote><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'><br><br><br>-- <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'>Peter Tonoli < <a href="mailto:peter@medstv.unimelb.edu.au">peter@medstv.unimelb.edu.au</a> > +61-3-9288-2399 <br>IT Manager <br>The University of Melbourne - Eastern Hill Academic Centre, St. Vincent's Institute and O'Brien Institute <o:p></o:p></span></p></div></div></div><div class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><hr size=1 width="100%" noshade style='color:#ACA899' align=center></span></div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com">www.avg.com</a><br>Version: 2014.0.4259 / Virus Database: 3681/7019 - Release Date: 01/20/14<o:p></o:p></span></p></div></body></html>