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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Wow, that reply should help you solve that problem lickety split!<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'>Try turning off GARP on the phone, disable web access and turn
off voice vlan access.<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<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"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Ahmed Elnagar<br>
<b>Sent:</b> Tuesday, July 03, 2007 3:25 AM<br>
<b>To:</b> Jefflin Choi; cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] cisco IP Phone causes stp loop.<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Just a note<o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>I Hate 500 Express </span></b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:navy'>it is a very bad switch and it has
a lot of strange configuration setting plus no useful troubleshooting
capabilities at all.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
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<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"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Jefflin Choi<br>
<b>Sent:</b> Tuesday, July 03, 2007 9:56 AM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] cisco IP Phone causes stp loop.</span><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Hi all,<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>Some end user plugged the pc port and switch port of an IP
Phone to a Catalyst CE500 port at the same time causing our client's switch on
a loop.<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>CE500--------7912 IP Phone<o:p></o:p></p>
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<p class=MsoNormal>
|
|<o:p></o:p></p>
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<p class=MsoNormal> |------------------------|<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>We can't prevent end user making accidental mistakes like
this which might cause network failure. <o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>I was wondering if Cisco IP phones are sending BPDU so
that the CE500 will errdisable the port. Doesn't it?<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>Any way to prevent the this from happening? <o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>Thanks,<o:p></o:p></p>
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<p class=MsoNormal>Jeff<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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