OAM-PM Top N Worst Sessions report
Overview
OAM-PM Top N Worst Sessions reports show the worst case OAM-PM sessions over a specified time period, grouped by session.
The report includes the following session types:
-
ETH-CFM Session
-
TWAMP-Light Session
Prerequisites
The following tasks need to be performed using NSP Classic management for OAM-PM Top N Worst Sessions reports to be created:
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A DMM session must be defined with accounting enabled.
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A TWAMP-Light session must be defined with accounting enabled.
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An SLM session must be defined.
Use cases
QoS analysis—Identify potential service impacting issues between specific NEs.
Report inputs
The following table shows the report inputs.
Table 13-24: OAM-PM Top N Worst Sessions 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:
|
Report range |
Length of time to be reported, in minutes (minutes, min), hours (hours, h), days (days, d), or months (months, m) |
Source Node |
Search using partial or full names.
Select individual items or click Select All.
Both the NE name and its IP address display.
Note: You can select up to 10,000 source NEs or target NEs for the OAM-PM Top N Worst Sessions report. An exception is returned when you select more than 10,000 source NEs or target NEs. |
Target Node |
Test Factor |
Average delay, maximum delay, minimum delay, or loss |
Result set limit |
Number of results to report |
Bin type |
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Frame Delay—The amount of time required to travel from the source site to the destination site and back (latency).
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Frame Delay Range—The difference between the minimum frame delay and the individual packet (jitter).
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Inter Frame Delay Variation—The difference in the delay metric between two adjacent packets (jitter). |
Show report output on one page |
Select the check box to enable pagination.
Note: Using the Show report output on one page option when creating reports as drill-downs may impact report rendering time. Nokia recommends disabling the Show report output on one page option when creating reports. |
Report characteristics
The following table lists the principal report characteristics.
Table 13-25: OAM-PM Top N Worst Sessions report characteristics
Characteristic |
Value |
Data type |
OAM session 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 |
Drill-down support |
Yes:
|
Examples
The following figures show report examples.