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Cat 3750E X2 problem

Hallo to everyone!

I have problem with optical link between core and WAN segments.

Here is situation:

I use Catalyst 3750E(ver c3750e-universal-mz.122-52.SE) as core switch and Catalyst 6504E(ver adventerprisek9_wan-vz.122-33.SXI6) as WAN switch. After changing optical transceiver from sfp 1000BaseLH to X2 10G 10Gbase-ER in syslog I found this:

%SFF8472-5-THRESHOLD_VIOLATION: Te2/0/2: Voltage low alarm; Operating value: 0.00 V, Threshold value: 2.96 V.

%SFF8472-5-THRESHOLD_VIOLATION: Te2/0/2: Rx power high warning; Operating value:   1.0 dBm, Threshold value:   0.5 dBm.

This message appears every 10 minutes… Physical layer is checked(and SFP on this link worked perfectly). I already changed IOS on c3750e-universalk9-mz.150-1.SE3.bin(CSCts58073 Bug Details 

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCts58073

), but problem still appearing.

Here is transceiver detail:

                              High Alarm  High Warn  Low Warn   Low Alarm

          Temperature         Threshold   Threshold  Threshold  Threshold

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

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

Te2/0/2     36.6                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)

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

Te2/0/2    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)

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

Te2/0/2     -1.9                 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)

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

Te2/0/2      1.0         +       4.5         0.5       -14.1      -18.4  

Please, could you help me to understand what is wrong with this config…

Best regards.

2 REPLIES 2
Leo Laohoo
VIP Community Legend

I get this alarm all the time.  I just ignored it.

No line errors, no link flapping. 

Thanks for replay, but may be you have advise how to switch off this message from syslog... It is pretty annoying