Netflow Exporting Support - Cisco SCE 8000 10GBE Software Configuration Manual

Chapter 9 Raw Data Formatting: The RDR Formatter and NetFlow Exporting
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NetFlow Exporting Support

The RDR formatter supports the exporting of NetFlowV9 reports and is able to send export packets to
the configured destinations. The packets contain template records and data records. The template records
define the format of the following data records. Each export packet may contain both types of records,
or only one type of records.
NetFlow Templates
Each RDR type supported for NetFlowV9 exporting has a pre-defined mapping that allows the RDR
formatter to convert it to a NetFlow V9 report and sent it over a NetFlow destination. The Cisco SCE
platform maintains template records for several RDR types, with the structure of each NetFlow data
record that corresponds to that RDR type. All NetFlow templates are pre-defined; users cannot create or
edit the NetFlow templates.
Please note that if an RDR tag that is not supported for NetFlow exporting is configured to be sent over
a NetFlow destination, this report will not be formatted and sent, and a special counter will be
incremented along and a warning will be logged. (See the output of the show rdr-formatter statistics
command – 'unsupported-tags'.)
Although template records and data records can be mixed in the same export packet, the template must
precede any related data records. For this reason, templates are included in the first export packet, the
first time a record is sent, and again at configured intervals (template refresh) to ensure that data records
will be recognized and read correctly.
OL-30621-02
FlowSet
A generic term for a collection of flow records that have a similar structure. In an export packet, one
or more flowsets follow the packet header. There are two different types of flowsets:
Template FlowSet
–
Data FlowSet.
–
Template FlowSet
One or more template records that have been grouped together in an export packet
Template Record
Defines the structure and interpretation of fields in a flow data record.
Data FlowSet
One or more records, of the same type, that are grouped together in an export packet. Each record
is either a flow data record or an options data record previously defined by a template record or an
options template record.
Flow Data Record
A data record that contains values of the flow parameters corresponding to a template record.
RDR Formatter and NetFlow Exporting Support
Cisco SCE 8000 10GBE Software Configuration Guide
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