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NetFlow Traffic Analyzer (NTA)

Forum Netflow Sources NOT showing up & what's the difference between FLOWS and RECORDS

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Netflow Sources NOT showing up & what's the difference between FLOWS and RECORDS

lchance over 14 years ago

We have VLANs doing Netflow on a Cisco 6000 switch, some of these VLANs are showing up as NETFLOW SOURCES but most are not. Why?

I did a packet capture at the Orion server for UDP 2055 and see where some devices which are doing Netflow are sending V5 FLOWS and some are sending V9 RECORDS. Why?

Thanks for any help!

0 chris.lapoint over 14 years ago

We have VLANs doing Netflow on a Cisco 6000 switch, some of these VLANs are showing up as NETFLOW SOURCES but most are not. Why?
A flow record always contains and input and output interface index. If one of these indexes maps to a monitored NTA source (must be managed in Orion), it will show up as receiving NetFlow.
I did a packet capture at the Orion server for UDP 2055 and see where some devices which are doing Netflow are sending V5 FLOWS and some are sending V9 RECORDS. Why?
Some older devices (or IOS) probably only support NetFlow v5. Newer devices (or IOS) may only support v9.
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0 lchance over 14 years ago in reply to chris.lapoint

Chris - I've opened a case on this. I still don't see those Netflow Sources in NTA that I think should be there. Thanks.
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