we are facing issue with IP phones and they lost connectvity and start upgrading.
found some errors on the switch logs,
TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi7/2, operational port trust state is now untrusted.
Jan 17 15:03:05: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi7/11, operational port trust state is now untrusted.
Jan 17 15:06:44: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/42, port's configured trust state is now operational.
Jan 17 15:08:51: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/23, port's configured trust state is now operational.
Jan 17 15:33:57: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/10, port's configured trust state is now operational.
Jan 17 15:39:19: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/9, port's configured trust state is now operational.
Jan 17 15:41:20: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/13, port's configured trust state is now operational.
Jan 17 15:41:29: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/7, port's configured trust state is now operational.
Jan 17 15:50:59: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/30, port's configured trust state is now operational.
Jan 17 15:51:34: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/37, port's configured trust state is now operational.
Jan 18 02:01:31: %SYS-5-CONFIG_I: Configured from 10.14.2.10 by snmp
Jan 18 05:35:08: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi8/15, operational port trust state is now untrusted.
Jan 18 05:36:21: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi8/15, port's configured trust state is now operational.
Jan 18 07:31:38: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi1/45, operational port trust state is now untrusted.
Jan 18 07:33:01: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi1/26, operational port trust state is now untrusted.
Jan 18 07:34:58: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi9/7, operational port trust state is now untrusted.
Jan 18 07:35:37: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/11, port's configured trust state is now operational.
Jan 18 07:40:27: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi1/45, port's configured trust state is now operational.
Jan 18 07:45:41: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi1/43, port's configured trust state is now operational.
Jan 18 07:51:43: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi3/3, operational port trust state is now untrusted.
Jan 18 07:51:58: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi2/48, operational port trust state is now untrusted.
Jan 18 07:55:48: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi2/48, port's configured trust state is now operational.
Jan 18 07:56:48: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi3/3, port's configured trust state is now operational.
Jan 18 09:04:33: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi3/3, operational port trust state is now untrusted.
Jan 18 09:09:09: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi1/45, operational port trust state is now untrusted.
Jan 18 10:16:21: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi1/1, operational port trust state is now untrusted.
Jan 18 10:17:43: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi1/1, port's configured trust state is now operational.
Jan 20 03:34:13: %SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi7/9, operational port trust state is now untrusted.
Jan 20 03:35:17: %SWITCH_QOS_TB-5-TRUST_DEVICE_DETECTED: cisco-phone detected on port Gi7/9, port's configured trust state is now operational.
show run int gig8/15
Building configuration...
Current configuration : 236 bytes
!
interface GigabitEthernet8/15
switchport access vlan 1132
switchport mode access
switchport voice vlan 1162
qos trust cos
qos trust device cisco-phone
tx-queue 3
priority high
shape percent 33
spanning-tree portfast
end
Need help.
