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NAM not recognizing rtp from netflow

David Niemann
Level 3
Level 3

NAM2-250S v5.1.2 in a 6509 collecting netflow information from a 3845.  For some reason RTP traffic is not recognized as RTP by the NAM.  It shows up under unknown.  I have a NME-NAM-120S in a 2811 running the same 5.1.2 code and it recognizes the RTP traffic including call information.  Is that because the netflow data is different than the SPAN that the NME is receiving?                 

1 Reply 1

David Niemann
Level 3
Level 3

Ended up opening a TAC case on this.  Apparently RTP is only recognized by the NAM when it comes from a SPAN.  NAM does not recognize RTP from netflow because of the dynamic nature of the ports used with RTP.