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DanN's avatar
DanN
Icon for Neophyte rankNeophyte
2 months ago

Nexus 9k Netflow configuration example

Hello,

Does anyone happen to have an example Nexus 9k which has been configured and is displaying netflow properly? I was able to get the cflow packets to our collector but the packets are being discarded because we are missing the type=4 field for protocol. Based on Ciscos documentation and the example 3750 netflow config that LM provides in their netflow doc, we have that protocol field set but we are still seeing the error, so any example config would help us.

 

Thank you

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  • DanN's avatar
    DanN
    Icon for Neophyte rankNeophyte
    30 days ago

    We are using version 9 currently, below will be the screenshot of the error used with the !netflow func=dump command.

    The configuration we're using is this (IPs for Dest and source vlan have been removed);

    Flow exporter LM-EXPORTER:
        Destination: X.X.X.X
        VRF: default (1)
        Destination UDP Port 2055
        Source Interface Vlan101 (X.X.X.X)
        Export Version 9
            Sequence number 15826
            Data template timeout 60 seconds
        Exporter Statistics
            Number of Flow Records Exported 376851
            Number of Templates Exported 1175
            Number of Export Packets Sent 14304
            Number of Export Bytes Sent 16928624
            Number of Destination Unreachable Events 0
            Number of No Buffer Events 0
            Number of Packets Dropped (No Route to Host) 0
            Number of Packets Dropped (other) 0
            Number of Packets Dropped (LC to RP Error) 0
            Number of Packets Dropped (Output Drops) 0
            Time statistics were last cleared: Never