WS-C3750E-48PD errors

Unanswered Question
Apr 23rd, 2009

I am trying to figure out why I am getting these error messages on my 3750E switch:

Apr 23 18:34:39: %SFF8472-5-THRESHOLD_VIOLATION: Te1/0/1: Tx power low alarm; Operating value: -32.2 dBm, Threshold value: -12.2 dBm.

Apr 23 18:44:39: %SFF8472-5-THRESHOLD_VIOLATION: Te1/0/1: Tx power low alarm; Operating value: -32.2 dBm, Threshold value: -12.2 dBm.

Apr 23 18:54:40: %SFF8472-5-THRESHOLD_VIOLATION: Te1/0/1: Tx power low alarm; Operating value: -32.2 dBm, Threshold value: -12.2 dBm.

Apr 23 18:58:46: %SYS-5-CONFIG_I: Configured from console by gstewart on vty0 (10.24.133.149)

Apr 23 19:04:40: %SFF8472-5-THRESHOLD_VIOLATION: Te1/0/1: Tx power low alarm; Operating value: -32.2 dBm, Threshold value: -12.2 dBm.

Any suggestions?

I have this problem too.
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Leo Laohoo Thu, 04/23/2009 - 14:29

Can you please post the result of the following commands:

sh post

sh environ alarm

sh run interface Te1/0/1

everett5252 Thu, 04/23/2009 - 14:43

everything passed in the show post.

no issues with the env

IT-ROOM-264-IDF# sh run interface Te1/0/1

Building configuration...

Current configuration : 128 bytes

!

interface TenGigabitEthernet1/0/1

switchport trunk encapsulation dot1q

switchport mode trunk

channel-group 14 mode on

end

IT-ROOM-264-IDF#show interface Te1/0/1

TenGigabitEthernet1/0/1 is down, line protocol is down (err-disabled)

Hardware is Ten Gigabit Ethernet, address is 0024.974e.8bb5 (bia 0024.974e.8bb5)

MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,

reliability 253/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive not set

Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-LR

input flow-control is off, output flow-control is unsupported

ARP type: ARPA, ARP Timeout 04:00:00

Last input never, output 04:17:08, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/0 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 packets input, 144 bytes, 0 no buffer

Received 0 broadcasts (0 multicasts)

0 runts, 0 giants, 0 throttles

5 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

19 packets output, 1216 bytes, 0 underruns

0 output errors, 0 collisions, 5 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier, 0 PAUSE output

0 output buffer failures, 0 output buffers swapped out

everett5252 Fri, 04/24/2009 - 04:19

IT-ROOM-264-IDF#sh interface Ten1/0/1 trans detail

ITU Channel not available (Wavelength not available),

Transceiver is internally calibrated.

mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.

++ : high alarm, + : high warning, - : low warning, -- : low alarm.

A2D readouts (if they differ), are reported in parentheses.

The threshold values are calibrated.

High Alarm High Warn Low Warn Low Alarm

Temperature Threshold Threshold Threshold Threshold

Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)

--------- ------------------ ---------- --------- --------- ---------

Te1/0/1 32.7 74.0 70.0 0.0 -4.0

High Alarm High Warn Low Warn Low Alarm

Voltage Threshold Threshold Threshold Threshold

Port (Volts) (Volts) (Volts) (Volts) (Volts)

--------- --------------- ---------- --------- --------- ---------

Te1/0/1 0.00 3.63 3.46 3.13 2.96

Optical High Alarm High Warn Low Warn Low Alarm

Transmit Power Threshold Threshold Threshold Threshold

Port (dBm) (dBm) (dBm) (dBm) (dBm)

--------- ----------------- ---------- --------- --------- ---------

Te1/0/1 -2.0 4.5 0.5 -8.2 -12.2

Optical High Alarm High Warn Low Warn Low Alarm

Receive Power Threshold Threshold Threshold Threshold

Port (dBm) (dBm) (dBm) (dBm) (dBm)

------- ----------------- ---------- --------- --------- ---------

Te1/0/1 -4.8 4.5 0.5 -14.1 -18.4

IT-ROOM-264-IDF#

Leo Laohoo Sun, 04/26/2009 - 15:56

Don't know with the other's opinion but your module (Ten 1/0/1) is has triggered an alarm after exceeding the lower treshold limit of -12.2dBm.

My recommendation is to get the module RMA-ed.

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