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Viewing SFP Information
- 12 Nov 2024
- 6 Minutes to read
- Contributors
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Viewing SFP Information
- Updated on 12 Nov 2024
- 6 Minutes to read
- Contributors
- Print
- PDF
Article summary
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To view a summary of all SFPs
Access the page Port ▶ SFP.
Summary information for all SFPs currently detected by the Cisco Provider Connectivity Assurance Sensor Control is displayed.(Optional) To limit the view to only certain SFPs, enter a value on which to filter, then click Search. You can filter by the port name, part number, serial number, wave length or speed.
Note: Enter an asterisk ( * ) as a wildcard to replace one or several characters.
For more information on specific parameters, refer to the following tables.
SFP Information (Port ▶ SFP ▶ Configuration)
| Parameter | Description |
|---|---|
| Present | An indication of whether or not the SFP is present. Available options are:
|
| Port name | The physical connector the port is using If the physical connector is reported as Unknown, it means that the remote device is unlinked and that the information shown is cached from the last communication made with the remote device. |
| Part number | The manufacturer’s part number or product name |
| Serial number | The manufacturer’s serial number for the transceiver |
| Wavelength | The nominal transmitter wavelength at room temperature, expressed in nanometers |
| Speed override | The speed supported by the SFP, such as 100Mbps, 1Gbps, or 10Gbps. The default setting is Automatic. In this case, the port speed is configured to the highest rate detected from the SFP. You can, if needed, manually override the SFP speed by selecting a specific speed value. The Sensor Module does not support 100Mbps on the SFP port. |
To view detailed information for a specific SFP
Access the page Port ▶ SFP.
Summary information for all SFPs currently detected by the Sensor Control is displayed.In the Port Name column of the table, click the SFP for which you want to view detailed information.
The details pertaining to the selected SFP are displayed. The level of detail provided may vary, depending on if the SFP has been linked, authorized, etc.
For more information on specific parameters, refer to the following tables.
SFP Status Information (Port ▶ SFP ▶ Status ▶ [port name])
SFP Configuration
| Parameter | Description |
|---|---|
| Force Link up | Enable this box to force SFP signals to the Up state. The value indicated here persists across reboots. |
| Laser (Optical ports only) | The laser on the device's port can be set to either ON or OFF
|
| Tx Disable (Sensor SFP compute 1G 2 Copper only) | Data transmission on the device's port can be disabled by selecting this box
|
SFP or Fiber Information
| Parameter | Description |
|---|---|
| Connector Type | The external cable connector provided as the media interface |
| Vendor | The manufacturer name This is a 16-character field that contains ASCII characters, padded on the right with ASCII spaces (20h). |
| Wave Length | Indicates the nominal transmitter wavelength at room temperature, expressed in nanometers |
| Part number | The manufacturer part number or product name This is a 16-byte field that contains ASCII characters, padded on the right with ASCII spaces (20h). |
| Serial number | The manufacturer serial number for the transceiver This is a 16-character field that contains ASCII characters, padded on the right with ASCII spaces (20h). |
| Revision | The manufacturer’s product revision This is a 16 character field that contains ASCII characters, padded on the right with ASCII spaces (20h). |
| SFP present | Indicates the presence of a recognized SFP |
| Diagnostics | Supported or unsupported A value of supported indicates that diagnostic information is provided in the SFP memory section. |
| Calibration | Internal: The values are calibrated to absolute measurements, which should be interpreted according to the “Internal Calibration” convention External: The values are A/D counts, which are converted into real units according to the “External Calibration” convention. |
| Thresholds | Indicates whether alarm and warning thresholds are supported |
| Speed | The speed supported by the SFP, such as 1Gbps or 10Gbps Two values are displayed:
|
Monitoring Information
| Parameter | Description |
|---|---|
| Temperature | Transceiver temperature, measured internally Temperature accuracy is manufacturer-specific, but must be better than 3 degrees Celsius for the specified operating temperature and voltage. |
| Supply Voltage | Transceiver supply voltage, measured internally Note: Transmitter supply voltage and receiver supply voltage are isolated in some transceivers. In that case, only one supply is monitored. Refer to the device specifications for details. |
| Laser Bias Current | Coupled TX output power, measured internally Accuracy is manufacturer-specific but must be better than 3 dB for the specified operating temperature and voltage. Data is assumed to be based on measurement of a laser monitor photo-diode current. Data is not valid when the transmitter is disabled. |
| Receive Power | Received optical power, measured internally Accuracy depends on the exact optical wavelength. For the manufacturer’s specified wavelength, accuracy should be better than 3 dB for the specified temperature and voltage. This accuracy should be maintained for input power levels up to the lesser of maximum transmitted or maximum received optical power per the appropriate standard. It should be maintained down to the minimum transmitted power minus cable plant loss (insertion loss or passive loss) per the appropriate standard. Accuracy beyond this minimum required received input optical power range is manufacturer specific. |
| Transmit Power | Coupled TX output power, measured internally. Accuracy is manufacturer-specific but must be better than 3 dB for the specified operating temperature and voltage. Data is assumed to be based on measurement of a laser monitor photodiode current. Data is not valid when the transmitter is disabled. |
SFP Thresholds (Port ▶ SFP ▶ Status ▶ [port name])
| Parameter | Description |
|---|---|
| Temperature | High Alarm: High-temperature alarm for the transceiver Low Alarm: Low-temperature alarm for the transceiver High Warning: High-temperature warning for the transceiver Low Warning: Low-temperature warning for the transceiver |
| Vcc | High Alarm: High-supply voltage alarm for the transceiver expressed in millivolts Low Alarm: Low-supply voltage alarm for the transceiver expressed in millivolts High Warning: High-supply voltage warning for the transceiver expressed in millivolts Low Warning: Low-supply voltage warning for the transceiver expressed in millivolts |
| Laser Bias Current | High Alarm: High-laser bias current alarm for the TX, expressed in microamperes Low Alarm: Low-laser bias current alarm for the TX, expressed in microamperes High Warning: High-laser bias current warning for the TX, expressed in microamperes Low Warning: Low-laser bias current warning for the TX, expressed in microamperes |
| Tx Power | High Alarm: High-output power alarm for the TX (~ -40 dBm to +8.2 dBm) Low Alarm: Low-output power alarm for the TX (~ -40 dBm to +8.2 dBm) High Warning: High-output power warning for the TX (~ -40 dBm to +8.2 dBm) Low Warning: Low-output power warning for the TX (~ -40 dBm to +8.2 dBm) |
| Rx Power | High Alarm: High-input power alarm for the RX (~ -40 dBm to +8.2 dBm) Low Alarm: Low-input power alarm for the RX (~ -40 dBm to +8.2 dBm) High Warning: High-input power warning for the RX (~ -40 dBm to +8.2 dBm) Low Warning: Low-input power warning for the RX (~ -40 dBm to +8.2 dBm) |
SFP Memory Information (Port ▶ SFP ▶ Status ▶ [port name])
SFP Memory (Location: A0h)
The SFP memory field provides a hexadecimal dump of the digital diagnostic memory map at address A0h. Refer to SFF-8472 for detailed descriptions of the individual data fields.Monitor Memory (Location: A2h)
The Monitor memory field provides a hexadecimal dump of the digital diagnostic memory map at address A2h. Refer to SFF-8472 for detailed descriptions of the individual data fields.Copper PHY Config Memory (Location: ACh or A2h)
The Copper PHY config memory field provides a hexadecimal dump of the PHY memory map at address ACh. Refer to the copper SFP vendor's specification for detailed descriptions of the individual data fields.
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