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67 — Statistics collection overview

Alcatel-Lucent 5620 Service Aware Manager, Release 7.0 R6 December 2009 67-3

3HE 04551 AAAE Ed. 01 Statistics Management Guide

Accounting policies

NEs collect accounting statistics using an accounting policy and an associated file

policy that are assigned to a SAP, SDP, network port, or subscriber profile.

An accounting policy specifies an accounting statistics record type, a collection

interval, an administrative state, and a file policy.

The 5620 SAM supports the following accounting policy types:

• service accounting policies—apply to SAPs, and specify the accounting records

to collect for services

• network accounting policies—apply to network ports and SDPs, and specify the

accounting records to collect for network resources

• subscriber accounting policies—apply to subscriber profiles and specify the

accounting records to collect for residential subscribers

• AA accounting policies—apply to applications, application groups, and

protocols, and specify the accounting records to collect for flows

An NE collects accounting statistics based on a specified collection interval and

writes the statistics data in XML format to a file on the NE. After the rollover period

specified in a file policy, the NE closes and compresses the file. The NE notifies the

5620 SAM that a new file is ready for processing, the 5620 SAM uses FTP or SCP

to obtain the file from the NE, and adds the file contents to the 5620 SAM database.

A third-party application can gather the statistics data and process it according to

your specifications.

When an accounting policy is administratively disabled, accounting statistics data is

not written to a file on the NE. When the accounting policy is re-enabled, the new

accounting data represents traffic activity since the re-enabling of the policy.

Because the statistics data accumulates in rolling counters, no information is lost.

You can customize the record in a service, subscriber, or AA accounting policy by

specifying the counters that are collected and the data thresholds for collection. See

chapter 69 for more information.

Changes to an accounting policy that is disabled apply immediately to all objects to

which the policy is applied. Changes to an accounting policy that is enabled take

effect at the beginning of the next collection period.

Consider the following before you configure an accounting policy.

• An accounting policy requires a file policy. If you deploy an accounting policy in

the absence of a file policy, a default file policy is automatically created.

• For service and network accounting policies, there can be one default policy.

Default accounting policies are not in effect until they are distributed to the NEs

by the 5620 SAM operator.

• There is a one-to-many relationship between accounting policies and accounting

objects. For example, one service accounting policy can apply to many SAPs, but

a SAP can have only one service accounting policy.

Note — To conserve NE and 5620 SAM resources, Alcatel-Lucent

recommends that you disable an accounting policy on an object when

statistics for the object are not required.

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