Details
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Improvement
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Resolution: Fixed
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Minor
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None
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Professional Edition
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None
Description
Some SFP modules have invalid alarm/warning limits in their EPROM, for example:
Current Alarms Warnings
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Measurement High Low High Low
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----------------------------------------------------------------------------
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Temperature 41.08 C 100.00 C -10.00 C 95.00 C -5.00 C
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Voltage 3.27 V 3.59 V 2.90 V 3.50 V 3.00 V
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Current 20.29 mA 100.00 mA 1.00 mA 80.00 mA 2.00 mA
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Tx Power -6.00 dBm 6.99 dBm -15.08 dBm 4.99 dBm -13.01 dBm
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Rx Power -7.42 dBm 1.99 dBm 0.00 dBm 0.00 dBm -30.00 dBm
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Here the Rx Power alarm range is 0 dBm to 1.99 dBm, and warning range is -30 dBm to 0 dBm.
It is just a normal (but probably cheap) 1000BASE-LR transceiver.
Obviously the alarm limits are impossible since alarm/warning ranges do not overlap.
It would be useful if Observium could detect such situations and automatically ignore ranges that are impossible.
Attachments
Activity
| Status | Original: Resolved [ 5 ] | New: Closed [ 6 ] |
| Attachment | New: image-2021-07-17-12-00-20-128.png [ 18879 ] |
| Resolution | New: Fixed [ 1 ] | |
| Status | Original: In Progress [ 3 ] | New: Resolved [ 5 ] |
| Status | Original: In Review [ 10101 ] | New: In Progress [ 3 ] |
| Labels | New: sensors thresholds |
| Assignee | Original: Adam Armstrong [ adama ] | New: Mike Stupalov [ landy ] |
| Description |
Original:
Some SFP modules have invalid alarm/warning limits in their EPROM, for example:
{{{{ Current Alarms Warnings}}}} {{ {{ Measurement High Low High Low}}}} {{----------------------------------------------------------------------------}} {{Temperature 41.08 C 100.00 C -10.00 C 95.00 C -5.00 C}} {{Voltage 3.27 V 3.59 V 2.90 V 3.50 V 3.00 V}} {{Current 20.29 mA 100.00 mA 1.00 mA 80.00 mA 2.00 mA}} {{Tx Power -6.00 dBm 6.99 dBm -15.08 dBm 4.99 dBm -13.01 dBm}} {{Rx Power -7.42 dBm 1.99 dBm 0.00 dBm 0.00 dBm -30.00 dBm}} Here the Rx Power alarm range is 0 dBm to 1.99 dBm, and warning range is -30 dBm to 0 dBm. It is just a normal (but probably cheap) 1000BASE-LR transceiver. Obviously the alarm limits are impossible since alarm/warning ranges do not overlap. It would be useful if Observium could detect such situations and automatically ignore ranges that are impossible. |
New:
Some SFP modules have invalid alarm/warning limits in their EPROM, for example:
{noformat} Current Alarms Warnings Measurement High Low High Low ---------------------------------------------------------------------------- Temperature 41.08 C 100.00 C -10.00 C 95.00 C -5.00 C Voltage 3.27 V 3.59 V 2.90 V 3.50 V 3.00 V Current 20.29 mA 100.00 mA 1.00 mA 80.00 mA 2.00 mA Tx Power -6.00 dBm 6.99 dBm -15.08 dBm 4.99 dBm -13.01 dBm Rx Power -7.42 dBm 1.99 dBm 0.00 dBm 0.00 dBm -30.00 dBm {noformat} Here the Rx Power alarm range is 0 dBm to 1.99 dBm, and warning range is -30 dBm to 0 dBm. It is just a normal (but probably cheap) 1000BASE-LR transceiver. Obviously the alarm limits are impossible since alarm/warning ranges do not overlap. It would be useful if Observium could detect such situations and automatically ignore ranges that are impossible. |
| Attachment | New: image-2021-07-16-17-36-24-985.png [ 18875 ] |
| Attachment | New: sfp2-limits.agent.snmpwalk [ 18873 ] | |
| Attachment | New: sfp2-limits.discovery [ 18874 ] |
| Status | Original: Pending Response [ 10000 ] | New: In Review [ 10101 ] |