Cisco Cisco IOS Software Release 12.4(6)T Fascicule

© 2008 Cisco Systems, Inc. All rights reserved.

27

ƒ

Prior Release 12.4(22)T FNF only supported NetFlow 
v9 format

Migration from traditional NetFlow to FNF required customers to 
simultaneously change IOS configuration and upgrade 
collectors to NetFlow v9 format

ƒ

Most customers today export flow records using 
NetFlow v5 export format 

ƒ

Release 12.4(22)T enables smooth migration to FNF 
while exporting flow records with NetFlow v5 format 
and eliminating the need for collector upgrades