- Digital Optical Monitoring.
- Per industry standard - SFF-8742, and it gives end users the ability to monitor real-time parameters of SFP, such as in/output power, temperature, laser current and supply voltage
- 2 Arista optical parts don't support full DOM:
- 40G AOC doesn't support Tx Power
- 10G AOC doesn't support DOM
- EOS CLIs:
- show int eth22/1 transceiver [detail]
- https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/transceiver-modules/data_sheet_c78-455693.html
upp106#show inv | grep SWDM
22 Arista Networks QSFP-100G-SWDM4 ATH173200003 20
upp106#show int eth 22/1 transceiver
If device is externally calibrated, only calibrated values are printed.
N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).
Bias Optical Optical
Temp Voltage Current Tx Power Rx Power
Port (Celsius) (Volts) (mA) (dBm) (dBm) Last Update
----- --------- -------- -------- -------- -------- -------------------
Et22/1 33.00 3.30 7.69 1.32 0.44 0:00:01 ago
upp106#show int eth 22/1 transceiver de
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 Alarm Low Warn
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
------- ------------ ---------- ---------- ---------- ----------
Et22/1 33.00 75.00 70.00 -5.00 0.00
High Alarm High Warn Low Alarm Low Warn
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
------- ------------ ---------- ---------- ---------- ----------
Et22/1 3.30 3.60 3.47 2.97 3.10
High Alarm High Warn Low Alarm Low Warn
Current Threshold Threshold Threshold Threshold
Port (mA) (mA) (mA) (mA) (mA)
------- ------------ ---------- ---------- ---------- ----------
Et22/1 7.71 11.00 10.00 2.00 3.00
High Alarm High Warn Low Alarm Low Warn
Tx Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ------------ ---------- ---------- ---------- ----------
Et22/1 1.33 6.00 5.00 -7.00 -6.00
High Alarm High Warn Low Alarm Low Warn
Rx Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ------------ ---------- ---------- ---------- ----------
Et22/1 0.44 5.50 4.50 -16.00 -13.00
bn303.jhm.mlagA.profB.WORKING.17:56:54#sh int status | grep 9/1/1
Et9/1/1 eth.mlag1601::2x25g::upp223_et1/1_et17/1<-->bn302|303_et9/1/1 connected in Po1601 full 25G 100GBASE-AR4
bn303.jhm.mlagA.profB.WORKING.17:56:39#sh int e9/1/1 transceiver
If device is externally calibrated, only calibrated values are printed.
N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).
Bias Optical Optical
Temp Voltage Current Tx Power Rx Power
Port (Celsius) (Volts) (mA) (dBm) (dBm) Last Update
----- --------- -------- -------- -------- -------- -------------------
Et9/1/1 31.11 3.23 7.08 0.36 -2.36 0:00:03 ago
bn303.jhm.mlagA.profB.WORKING.17:56:46#sh int e9/1/1 transceiver detail
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 Alarm Low Warn
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
------- ------------ ---------- ---------- ---------- ----------
Et9/1/1 31.53 80.00 75.00 -10.00 -5.00
High Alarm High Warn Low Alarm Low Warn
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
------- ------------ ---------- ---------- ---------- ----------
Et9/1/1 3.23 3.63 3.46 2.97 3.14
High Alarm High Warn Low Alarm Low Warn
Current Threshold Threshold Threshold Threshold
Port (mA) (mA) (mA) (mA) (mA)
------- ------------ ---------- ---------- ---------- ----------
Et9/1/1 7.08 12.00 10.00 3.00 4.50
High Alarm High Warn Low Alarm Low Warn
Tx Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ------------ ---------- ---------- ---------- ----------
Et9/1/1 0.36 5.40 2.40 -11.40 -8.40
High Alarm High Warn Low Alarm Low Warn
Rx Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ------------ ---------- ---------- ---------- ----------
Et9/1/1 -2.39 5.40 2.40 -13.30 -10.30
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