Cisco Cisco IOS Software Release 12.2(27)SBC

Copyright © 2006 Cisco Systems, Inc. All rights reserved.

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

One common application of the MPLS egress NetFlow accounting feature allows you to capture the 
MPLS virtual private network (VPN) IP flows that are traveling from one site of a VPN to another site 
of the same VPN through the service provider backbone. 

Benefits of this feature include the following:

You can now capture flows on the egress and ingress router interfaces to provide complete 
end-to-end usage information on network traffic. The accounting server uses the collected data for 
various levels of aggregation for accounting reports and application programming interface (API) 
accounting information, thus providing a complete billing solution.

NetFlow data statistics now account for all the packets that are dropped in the core of the service 
provider network, thus providing more accurate traffic statistics and patterns.

The MPLS egress NetFlow accounting feature is related to the MPLS VPNs and the NetFlow aggregation 
features. (See the 

.)

Before the introduction of this feature, NetFlow referred to the ingress router interface only.

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.

12.2(28)SB

This feature was modified to include the Cisco 10000 series routers and 
integrated into Cisco IOS Release 12.2(28)SB.