Cisco Systems OL-11399-01 manual BGP Attribute, Attribute Description

Chapter 2 Using the NetFlow Collector User Interface

Configuration

BGP Attribute

A BGP Attribute key builder looks up a BGP attribute from the Cisco NetFlow Collector BGP peer using an address from a flow. The complete AS path is a special case that uses both a source and a destination address from a flow. The BGP Attribute key builder has the following attributes.

Attribute	Description
Output name	Column name in output; defaults to the field ID if
	not specified.
Attribute type	One of the following radio buttons:
	•	Complete AS Path
	• Well Known Name—Select from ORIGIN,
		AS_PATH, NEXT_HOP,
		MULTI_EXIT_DESC, LOCAL_PREF,
		ATOMIC_AGGREGATOR,
		AGGREGATOR, COMMUNITY,
		ORIGINATOR_ID, or CLUSTER_LIST
	•	Integer Type ID.
Source address key	ID of a key builder that returns the source address
	for a complete AS path look up, otherwise
	disabled.
Destination address key	ID of a key builder that returns the destination
	address for querying the attribute.
Post-aggregation	Determines whether look ups are performed for
	each flow or at the end of the aggregation period;
	this should always be selected, otherwise
	attributes are queried from the Cisco NetFlow
	Collector BGP peer as flows arrive resulting in a
	significant performance impact.

	Cisco NetFlow Collector User Guide
OL-11399-01		2-13