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S-Series Will Only Mirror Traffic Once Which Might Affect Purview

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TitleS-Series Will Only Mirror Traffic Once Which Might Affect Purview
Question
Are there any limitations on S series mirroring when installing Purview 
Environment
 
  • S Series switches
  • NetSight Purview 
  • Flow direction
Answer



Flows can only be mirrored once in any individual S Series switch. If you are installing Purview on an S-Series switch that already has mirrors configured be aware that if a flow has already been duplicated through a mirror it will not be duplicated again on a separate mirror. If the flow you're trying to mirror to Purview has already been mirrored some place else then it will not be mirrored again to Purview.



Also note N-Packet policy mirror (mirror the first 15 packets of a flow) is only ingress capable.  
To export bidirectional netflow data, more than one port on the switch needs policy mirror applied.

 
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