NFM-P statistics types

Overview
Table 1-1: Characteristics of statistics types

Characteristic

Statistics type

Performance

Accounting

  • service

  • network

  • subscriber

  • AA

Server performance

Typical uses

NE monitoring

NE troubleshooting

Billing

SLA compliance

Trend analysis

NFM-P system monitoring

NFM-P system troubleshooting

Source

NE MIBs

All but AA: NE accounting files and NE MIBs

AA: ISA-AA MIBs

Internal NFM-P system metrics

On-demand collection

Yes

No

Yes

Scheduled collection

Yes

Requires Statistics or Specific MIB policy

Yes

Requires File and Accounting policies

Yes

Requires Server Performance Statistics policy

Real-time graphing

Yes

Yes, if MIB-based

Yes

Historical graphing

Yes

Yes

Yes

Available via the XML API

Yes

Yes

Yes

Collection default

Off

Off

On

Performance statistics

Performance statistics counters record NE data, for example, physical equipment status and routing throughput, for monitoring and troubleshooting. Use the Performance Statistics Search Tool to view device-specific lists of the MIB-based performance statistics that the NFM-P supports.

Performance statistics, except for AA network performance statistics, are collected from NE MIBs using SNMP. The collection can be scheduled, or performed on demand.

You can graphically display performance statistics in real time, or export the data using the XML API. Historical performance statistics can be viewed in tabular or graphical form in the NFM-P client GUI.

Accounting statistics

Accounting statistics counters typically record service or subscriber usage data for billing or to ensure SLA compliance. Use the Accounting Statistics Search Tool to view device-specific lists of the accounting statistics that the NFM-P supports.

Accounting policies define the schedules that NEs use for the regular collection of accounting statistics. File policies specify how NEs store the accounting statistics data. An NE can perform scheduled accounting statistics collection only when a file policy and an accounting policy are deployed to the NE.

The NFM-P uses FTP or SCP to collect accounting statistics files from NEs. See the device documentation for information about accounting file creation and storage on a device.

You can view historical and real-time accounting statistics in tabular or graphical form in the NFM-P client GUI.

The supported accounting statistics types are:

  • service accounting statistics—collected on each queue of each SAP that is associated with an accounting policy; provide queue throughput and drop information, and can be used for billing and SLA verification

  • network accounting statistics—collected on each SDP queue or network port associated with an accounting policy; measure FC queue usage, which is of use for monitoring link utilization, identifying traffic patterns and trends, capacity planning, and traffic engineering

    Note:

    SDP statistics collection is supported only on devices that are in chassis mode B, C, or D.

  • subscriber accounting statistics—collected on a subscriber profile for residential subscriber instances; used for billing and SLA verification

  • application assurance, or AA, accounting statistics—collected from applications, application groups, and protocols on ISA-AA MDAs; AA network performance statistics are also available for monitoring the AA processing load on an ISA-AA MDA

    See the IPDR Reference for comprehensive information about AA accounting and AA network performance statistics.

You can customize the statistics record in a service, subscriber, or AA accounting policy by specifying the counters that are collected and the data thresholds for collection. See the NSP NFM-P Classic Management User Guide for information about creating custom accounting records.

Server performance statistics

You can collect server performance statistics such as the following from main and auxiliary servers in an NFM-P system:

  • server statistics, which include memory usage and alarm counters

  • network activity statistics, which include SNMP trap counters, accounting and SNMP polled statistic record counters, statistics collection counters, application assurance statistics collection counters, and NE resynchronization counters

You can collect server performance statistics on demand, or schedule regular collection using a policy. Server performance statistics can also be collected and graphically displayed in real time, or exported using the XML API. Historical server performance statistics can be viewed in tabular or graphical form in the NFM-P client GUI.