AA Cflowd

Data collection

ISA-AA groups and partitions support Cflowd sampling and TCP performance data collection for AA applications and application groups. AA Cflowd statistics are collected by an NSP Flow Collector, which forwards the data to an OSS or to the NSP Analytics application for reporting and analysis.

Cflowd analysis is performed on a per-flow basis. Statistics are created at the end of a flow session. Standard Cflowd sampling collects the source and destination addresses and the protocol used, AA Cflowd also collects the start time, duration, and context IP address. This additional information can be used to customize network usage reporting.

If an NFM-P system includes an auxiliary database, you can store the AA Cflowd statistics for use as the source data for reports in the Analytics application.

An ISA-AA group supports one Cflowd instance. See Chapter 13, Logical group object configuration for information about configuring AA Cflowd on an ISA-AA group, and the NSP documentation for information about NSP Flow Collector configuration.

AA Cflowd policies

You can use the NFM-P to create AA Cflowd group policies for AA groups and partitions. The parameters in an AA Cflowd group policy are the same as the Cflowd parameters that you configure on an ISA-AA group.

When you use an AA Cflowd group policy to specify the AA Cflowd collection criteria, you can apply the policy to multiple AA sites. You can also use the policy as the master policy in a policy sync group to ensure that the distributed AA Cflowd group policies remain synchronized with the master, and to facilitate the deployment of a policy update to multiple local policy instances at one time.

AA Cflowd templates

You can apply a cflowd template to an AA Cflowd policy on the 7750 SR NE. The policy must either be for an ISA-AA group with partitions disabled, or be a group level policy for an ISA-AA group with partitions enabled. Templates are not available for a partition level AA Cflowd policy. Cflowd template allows for groups of parameters and fields to be collected together under a combined heading such as Volume.

See To configure an AA Cflowd group policy for AA Cflowd group policy configuration information. See Policy sync groups for information about policy sync groups.