Hi just wondering if anyone else has had any issues upgrading to C6O?
We just upgraded all of our 1120e and 1140e ip phones from C3C to C6O and found that at some sites the IP phones did not pick up LLDP vlan info from the switches after the upgrade, could not reach our Voice DHCP server.
Via the local diagnostics the phone showed as having a data scope ip address, and in the arp tables each phone`s mac address was showing two ip addresses. In the network trace the phone seemed to be acknowledging the data DHCP response and not the voice dhcp. It was like 802.1q was not functioning correctly. The voice DHCP logs did not show any record of a request from these phones.
This was resolved by turning off DHCP on the phones, manually assigning an IP address, rebooting them, and then putting them all back to Auto. On the next reboot they functioned normally.
All of the switches and routers at these sites are configured the same as other sites where there were no issues with the upgrade.
Unfortunately we are not sure how the phones were configured before the upgrade, except to say they were all functioning correctly. Most probably Full DHCP with LLDP or manual vlan input.
Any ideas to the cause of this? Do you think there may be something strange in data dhcp scopes? I have tried to replicate the issue in the lab but still not able to come up with anything.
We just upgraded all of our 1120e and 1140e ip phones from C3C to C6O and found that at some sites the IP phones did not pick up LLDP vlan info from the switches after the upgrade, could not reach our Voice DHCP server.
Via the local diagnostics the phone showed as having a data scope ip address, and in the arp tables each phone`s mac address was showing two ip addresses. In the network trace the phone seemed to be acknowledging the data DHCP response and not the voice dhcp. It was like 802.1q was not functioning correctly. The voice DHCP logs did not show any record of a request from these phones.
This was resolved by turning off DHCP on the phones, manually assigning an IP address, rebooting them, and then putting them all back to Auto. On the next reboot they functioned normally.
All of the switches and routers at these sites are configured the same as other sites where there were no issues with the upgrade.
Unfortunately we are not sure how the phones were configured before the upgrade, except to say they were all functioning correctly. Most probably Full DHCP with LLDP or manual vlan input.
Any ideas to the cause of this? Do you think there may be something strange in data dhcp scopes? I have tried to replicate the issue in the lab but still not able to come up with anything.
