Cisco Cisco IOS Software Release 12.0(22)S

This document describes the Cisco multiprotocol label switching (MPLS) egress NetFlow accounting 
feature. It identifies the supported platforms, provides configuration examples, and lists related IOS 
command line interface (CLI) commands.

This document includes the following major sections:

The MPLS egress NetFlow accounting feature allows you to capture Internet Protocol (IP) flow 
information for packets undergoing MPLS label disposition; that is, packets that arrive on a router as 
MPLS and are transmitted as IP.

Previously, you captured NetFlow data only for flows that arrived on the packet in IP format. When an 
edge router performed MPLS label imposition (received an IP packet and transmitted it as an MPLS 
packet), NetFlow data was captured when the packet entered the network. Inside the network, the packet 
was switched based only on MPLS information, and thus NetFlow information was not captured until 
after the last label was removed.

12.0(10)ST

This feature was introduced.

12.1(5)T

This feature was integrated into Cisco IOS Release 12.1(5)T.

12.0(22)S

This feature was integrated into Cisco IOS Release 12.0(22)S.