Interpretation of Span Loss Report

The Span Loss Report is generated and saved at user defined location in an XLS format at the scheduled date and time. User will be notified through notification window on NMS GUI about the success or failure of report generation. User must login to the nominated machine and go to the specified location in order to view the report.

The following figure shows an instance of span loss report generated for two EMS(s) with values against each parameter. The span loss value (in dB) for each amplifier TL will be displayed along with colored legends representing the Severity in terms of threshold:

Span Loss Report

Span Loss Report parameters

Parameters	Description

SrcEMSName	Displays the source Ems name to which the amplifier TL belongs.
SrcNodeIp	Displays the IP address of the source node with the amplifier TL.
SrcPort	Displays the source port number of the amplifier TL.
SrcTx(dBm)	Displays the power in decibels per milliwatt (dBm) transmitted by the source amplifier port.
DesEMSName	Displays the destination Ems name to which the amplifier TL belongs.
DesNodeIp	Displays the IP address of the destination node with the amplifier TL.
DesPort	Displays the destination port number of the amplifier TL.
DesRx(dBm)	Displays the power in decibels per milliwatt (dBm) received by the destination amplifier port.
BaseValue(dB)	Displays the threshold value based on which the span loss calculation will be performed.
DeltaValue(dB)	Displays the value defined for variation with respect to Base value which will be considered while span loss calculation.
SpanLoss(dB)	Displays the power loss in terms of dB occurring over a span from source to destination of an amplifier TL.
isValid	true: Displayed when the span loss value is within threshold. false: Displayed when the span loss value is above or below the threshold.
MinSpanValue(dB)	Displays the lowest span value to be considered when defining the severity of an Amplifier TL as 'within threshold'. If the span loss is below this value, the TL is marked in orange color (Below Threshold). MinSpanValue is basically base plus delta value.
MaxSpanValue(dB)	Displays the highest span value to be considered when defining the severity of an Amplifier TL as 'within threshold'. If the span loss is above this value, the TL is marked in red color (Above Threshold).
Severity	Colored indication representing the severity of span loss that has occurred over a given amplifier TL. Green: Indicates that span loss is within the set threshold values. Orange: Indicates that span loss is below the set threshold value. Red: Indicates that span loss is above the set threshold value.
Apart from the color legends used to indicate severity, there are few other legends listed as follows: OpticalPowerNotAvailable: Displayed when power values not available on node. OpticalPowerNotApplicable: Displayed when ports are non Amplifier ports. PortNotAvailable: Displayed when PTP is not valid. NodeUnreachable: Displayed when the node is not reachable. NodeNotManaged: Displayed when the given node is not managed by EMS. RequestTimedOut: Displayed when no response is received from the node within time barrier.