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https://www.cisco.com/c/en/us/td/docs/ios/12_2sb/feature/guide/sx_mnf.html
Prerequisites for MPLS-Aware NetFlow
The MPLS-Aware NetFlow feature requires the following for its operation:
•NetFlow configured on the label switch router (LSR)
•MPLS enabled on the LSR
•Cisco Express Forwarding or distributed Cisco Express Forwarding enabled on the LSR
The following are also required if you are exporting MPLS-Aware NetFlow data to a Cisco NetFlow collector:
•NetFlow Version 9 export format configured on the LSR
•NetFlow collector and analyzer capable of using MPLS-Aware NetFlow export packets in Version 9 format
https://www.cisco.com/c/en/us/td/docs/ios/12_2sb/feature/guide/sx_mnf.html
Prerequisites for MPLS-Aware NetFlow
The MPLS-Aware NetFlow feature requires the following for its operation:
•NetFlow configured on the label switch router (LSR)
•MPLS enabled on the LSR
•Cisco Express Forwarding or distributed Cisco Express Forwarding enabled on the LSR
The following are also required if you are exporting MPLS-Aware NetFlow data to a Cisco NetFlow collector:
•NetFlow Version 9 export format configured on the LSR
•NetFlow collector and analyzer capable of using MPLS-Aware NetFlow export packets in Version 9 format