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<title>Re: [cisco-voip] Simple VOIP question: Switch related</title>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Do a show vlan and make sure vlan 2 exists.<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>Matthew Linsemier<br>
<b>Sent:</b> Tuesday, July 22, 2008 12:57 PM<br>
<b>To:</b> Jeff Cartier; cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Simple VOIP question: Switch related<o:p></o:p></span></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif"'>Do you have CDP enabled on the switch?
Cisco phones use CDP voice vlan functionality.<br>
<br>
Matt<br>
<br>
<br>
On 7/22/08 1:00 PM, "Jeff Cartier" <<a href="jcartier@acs.on.ca">jcartier@acs.on.ca</a>>
wrote:</span><o:p></o:p></p>
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font-family:"Arial","sans-serif"'><br>
I’m having the worst time trying to figure out a problem.<br>
<br>
The issue is that a 7912 phone seems to be getting an IP address in the data
subnet. We’ve tried two configurations on the switchport level and
neither are working…<br>
<br>
Interface fa0/1<br>
switchport mode access<br>
switchport voice vlan 2<br>
srr-queue bandwidth share 10 10 60 20<br>
priority-queue out<br>
mls qos trust cos<br>
auto qos voip trust<br>
spanning-tree portfast<br>
<br>
AND/OR<br>
<br>
Interface fa0/1<br>
Switchport mode trunk<br>
switchport trunk encapsulation dot1q<br>
switchport voice vlan 2<br>
srr-queue bandwidth share 10 10 60 20<br>
priority-queue out<br>
mls qos trust cos<br>
auto qos voip trust<br>
spanning-tree portfast<br>
<br>
And yet the phone keeps receiving an IP address in the data subnet.<br>
<br>
We’ve verified the following:<br>
- helper-address on the router<br>
- correct DHCP scope<br>
<br>
</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p></span></p>
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