OAM-PM Latency (NSP) report

General information

The OAM-PM Latency (NSP) report differs from the OAM-PM Latency report by including OAM data for NEs managed by the NFM-P and MDM (model-driven Nokia NEs). The report can be run by itself or as a drill-down from an OAM-PM Network Site Summary (NSP) report. The report shows the graph of latency for a selected session during a specified time period. The report includes the following session types:

• ETH-CFM Session

• TWAMP-Light Session

For raw granularity, the report displays data based on startTime from PM session-based statistics. For other granularities (hourly, daily, and monthly), the report displays based on timeRecorded. The difference in data is between the raw and granularity reports for Wavence NEs.

Use cases

QoS analysis—Identify potential service impacting issues based on thresholds for latency, jitter, and packet loss between specific NEs.

Prerequisites

The following sessions need to be performed in the NSP and NFM-P for the report to be created:

• a DMM session must be defined with accounting enabled in both the MDM-managed and NFM-P NEs

• a TWAMP-Light session must be defined with accounting enabled in both the MDM-managed and NFM-P NEs

• You must enable aggregation using NSP. For more information, see the Telemetry information on the Network Developer Portal and the NSP Data Collection and Analysis Guide.

Report inputs

The following table shows the report inputs.

Table 17-7: OAM-PM Latency (NSP) report inputs

Prompt	Notes
Session Type	ETH-CFM Session, TWAMP-Light Session
End Date	Calendar date or relative date (for example, two days ago) and time
Granularity	Aggregation types: Hourly Daily Monthly None (raw collection interval)
Report Range	Length of time to be reported, in hours, days, or months
Source Node	Search using partial or full names. Select individual items or click Select All. Both the NE name and its IP address display.
Target Node
Session name
Bin Type	Bin types as configured in the NSP and NFM-P
Interval Duration	5 minutes, 15 minutes, 1 hour, or 1 day (15 min and 1 day are supported for Wavence NEs)
Threshold	Specify the threshold value
Logo resource ID	The logo to add to the report. Enter the Resource ID of the logo image in the Images folder. The default is the Nokia logo. To create the report without a logo, leave the Logo Resource ID field blank.
Logo Position	Choose Left, Middle, or Right. The logo appears on the left on the first page of the report if you choose Left or Middle.
Show Report Output On One Page	Select the check box to enable pagination. Note: Using the Show report on one page option when creating reports as drill-downs may impact report rendering time. Nokia recommends disabling the Show report on one page option when creating reports.

Report characteristics

The following table lists the principal report characteristics.

Table 17-8: OAM-PM Latency (NSP) report characteristics

Characteristic	Value
Data type	OAM session statistics For Wavence NEs: OAM session statistics and PM session-based statistics
Source database	Auxiliary database
NE types supported	7210 SAS-M 24F, 7210 SAS-M 24F 2XFP, 7210 SAS-M 24F 2XFP ETR, 7210 SAS-T 12F 10T 4XFP, 7210 SAS-T 12F 10T 4XFP ETR, 7210 SAS-X 24F 2XFP, 7210 SAS-K, 7210 SAS-R6, 7210 SAS-R12, 7210 SAS-S/SX 1/10GE VC 7250 IXR-6, 7250 IXR-R6, 7250 IXR-s, 7250 IXR-10, 7250 IXR-e all 7450 ESS variants all 7750 SR variants all 7950 XRS variants Wavence MSS-4, Wavence MSS-8
Drill-down support	No

Examples

The following figures show report examples.

Figure 17-7: OAM-PM Twamp-Light Session Delay Measurement Details (NSP) – Delay Details for Frame Delay

Figure 17-8: OAM-PM Twamp-Light Session Delay Measurement Details (NSP) – Delay Details for Inter Frame Delay Variation

Figure 17-9: OAM-PM ETH-CFM Session Delay Measurement Details (NSP) – Delay Details for Frame Delay Range

Figure 17-10: OAM-PM ETH-CFM Session Delay Measurement Details (NSP) – Delay Details for Frame Delay

Figure 17-11: OAM-PM ETH-CFM Session Delay Measurement Details (NSP) – Delay Details for Inter Frame Delay Variation