Patrick, Can you provide the model of switch and config, sanitized if necessary?
The most likely cause is vlan egress, so I would start there. I'm not familiar with the bootup sequence of Avaya phones, but usually the phone would only switch to the correct voice vlan if its received the vlan id from either ciscodp (with cisco phones) or from the dhcp server. So from what you said below the phone is changing to the voice vlan, correct? Or are the dhcp responses from the server not egressing the port that the phone is connected to? If the phone IS seeing the response, does it then reboot using the new vlan id? If so is there a dhcp server on that vlan to give the phone its voice subnet IP address etc? Regards, Andy Service Desk: +44 (0)845 850 1177 Number One Paper Mill Drive Church Hill South, Redditch, B98 8QJ Telephone: +44 (0)845 850 5577 From: Patrick Printz [mailto:[email protected]] Sent: 09 November 2011 16:54 To: Enterasys Customer Mailing List Subject: [enterasys] IP Phones & DHCP Anyone running Avaya 9600 series phones ever have an issue where the phones talk to DHCP on the default VLAN, but when they switch to the voice VLAN, they do not talk? I have been dealing with this for weeks, and the phones are not talking on the voice VLAN like they should. I have done traces and it appears that DHCP receives the request and responds, but the phone never receives the response. The response gets to the uplink port and then stops. I have messed with lldp, ciscodp, and the vlan egress settings. I cannot see why the phone is not receiving the DHCP response when it switches to the voice vlan. Patrick Printz Network Infrastructure Quinsigamond Community College 670 West Boylston Street Worcester, MA 01606-2092 w. 508-854-7517 c. 508-726-9529 "If a man is called a street sweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and Earth will pause to say, Here lived a great street sweeper who did his job well." ~Martin Luther King, Jr. * --To unsubscribe from enterasys, send email to [email protected]<mailto:[email protected]> with the body: unsubscribe enterasys [email protected]<mailto:[email protected]> --- To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected]
