Random Phones Rebooting.

[ubsaccount]

%SWITCH_QOS_TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected

interface GigabitEthernet4/5

switchport access vlan 100

switchport mode access

switchport nonegotiate

switchport voice vlan 290

no logging event link-status

no snmp trap link-status

auto qos voip cisco-phone

storm-control broadcast level 1.00

qos trust device cisco-phone

spanning-tree portfast

spanning-tree guard root

service-policy input AutoQos-4.0-Cisco-Phone-Input-Policy

service-policy output AutoQos-4.0-Output-Policy

We are having weird issues where phones randomly reboots. 

[andrewswanson]

Hi
What is the output of the command show interface GigabitEthernet4/5 counters storm-control
hth
Andy

[ubsaccount]

I checked physical and it doesn't seem like layer 1.  I don't see any errors on the interface.

Here are the outputs.  I really think it has something to do with Qos for some reason. 

#test cab tdr int g3/28
#show cab td
#show cab tdr int g3/28
Interface Speed Local pair Cable length Remote channel Status
Gi4/5 1Gbps 1-2 54 +/-1m Unknown Open

3-6 53 +/-1m Unknown Open
4-5 54 +/-1m Unknown Open
7-8 54 +/-1m Unknown Open

Port Broadcast Multicast Level TotalSuppressedPackets  

Gi4/ 5Enabled Disabled 1.00% 0

GigabitEthernet4/5  is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is 3435.7374.3c5b (bia 3435.7374.3c5b)
Description: B1 F4 User Vlan 100
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000-TX
input flow-control is on, output flow-control is on
Auto-MDIX on (operational: on)
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:30, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 119369
Queueing strategy: Class-based queueing
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 6000 bits/sec, 5 packets/sec
204565655 packets input, 90406806812 bytes, 0 no buffer
Received 2182854 broadcasts (1568304 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
1001389137 packets output, 880251559573 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

[ubsaccount]

Why is this needed on the same interface?

auto qos voip cisco-phone

qos trust device cisco-phone

[Simoniscool]

how often? and is it while in use or just all the time even overnight?

multiple phones or 1 phone?

show interface Gi4/5    -are there many CRC/input errors etc?

my first thought would be cable issues - I dont think the phone should reboot unless it loses power should it?

if compatible on your switch, you can sometimes see a cable problem stick out using:

test cab tdr int Gi4/5
and then:

show cab tdr int Gi4/5

you may need to do :
conf t

int Gi4/5

media-type rj45

to get it to work.

but some switches only test the TX and RX pairs not the PoE pair so it may not always show the problem