Top N Packet Drop—Access Ports report

Top N Packet Drop—Access Ports report overview

The Top N Packet Drop—Access Ports report show the top N FECs or queues that are dropping packets. Separate reports are available for access ports and for network ports. The default display is a table showing queue, forwarding class, egress and octet dropped information.

The report can be run for 7210 SAS NEs that do not support forwarding classes. For these NEs, the report displays N/A in the Forwarding Class and Queue columns. For 7210 SAS NEs that do not support egress policies, the statistics displays as -1 and the forwarding class and queue displays as N/A.

For 7750 SR NEs that do not have packet details available, the statistics will display as -1.

It is not mandatory to configure QoS for this report since the default QoS settings apply.

Use cases

SLA monitoring—Use the report to examine traffic drop patterns, to ensure SLAs are met.

Limitations

Minimum and maximum throughput aggregation cannot be compared with the minimum and maximum throughput values generated from raw granularity.

Prerequisites

The following table describes the aggregation rules that must be enabled and the accounting policies that must be configured for the NEs on which statistics are to be collected; see the NSP NFM-P Statistics Management Guide for information about configuring an accounting policy. To view the report for granularities other than raw data, the aggregation rules must be enabled; see How do I configure analytics aggregation?.

Table 14-47: Top N Packet Drop—Access Ports report prerequisites

Aggregator name	Monitored object class	Statistics class	Statistics collection	Details	NE types
SAP Interface Stats Aggregator Egress	service.AccessInterface	service.CompleteServiceEgressPacketOctets	Accounting, file, and log policies	completeSvcInEg policy	7705 SAR 7705 SAR-H 7705 SAR Hm 7750 SR
SAP Interface Stats Aggregator Ingress	service.AccessInterface	service.CompleteServiceIngressPacketOctets	Accounting, file, and log policies	completeSvcInEg policy	7250 IXR-R6 7705 SAR 7705 SAR-H 7705 SAR Hm 7750 SR
Service Egress Octets Aggregator	service.AccessInterface	service.ServiceEgressOctets	Accounting, file, and log policies	svcEgressOctet policy	7210 SAS-D 7210 SAS Dxp 7210 SAS-K 7210 SAS-M 7210 SAS-Mxp 7210 SAS-R 7210 SAS-S/Sx, 7210 SAS-T 7210 SAS-X 7705 SAR-H
Service Ingress Octets Aggregator	service.AccessInterface	service.ServiceIngressOctets	Accounting, file, and log policies	svcIngressOctet policy	7210 SAS-D 7210 SAS Dxp 7210 SAS-K 7210 SAS-M 7210 SAS-Mxp 7210 SAS-R 7210 SAS-S/Sx, 7210 SAS-T 7210 SAS-X 7705 SAR-H

Report characteristics

The following table lists the principal report characteristics.

Table 14-48: Top N Packet Drop for Access port report characteristics

Characteristic	Value
Data type	Statistics
Source database	Auxiliary database
Report inputs	Prompt	Notes
	Report range	Length of time to be reported, in minutes (minutes, min), hours (hours, h), days (days, d), or months (months, m)
	End date	Calendar date or relative date (for example, two days ago) and time
	Granularity	Aggregation types: None (raw data) Hourly Daily Monthly
	NE types	Search using partial names or wildcard (%). Select individual items or click Select All.
	Name or name pattern for NEs
	NEs
	Port modes	Choose Access or Hybrid
	Port, LAG, or MC-LAG Port or LAG	Choose Port, LAG, or MC-LAG
	Name or name pattern for ports	Search using partial names or wildcard (%). If an MC LAG is selected, the report will show a column with the name of the MC LAG.
	Physical ports or LAGs Physical ports or LAGs or MC LAGs	Search using partial names or wildcard (%). Select individual items or click Select All.
	Top N	Enter the number of results to display. Enter a value between 1 and 100.
	Logo Resource ID	The logo to add to the report. Enter the resource ID for the logo image uploaded to the Images folder, if any. If no logo ID is provided, the logo area will be blank.
	Logo Position	Choose Left, Middle or Right. The logo will be placed on the left of the first page of the report for both the left and middle options.
	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.
Drill-down support	No

Example

The following figure shows report examples.