Hi Gary
  If you have a conversation between A and B (SRC=A, DST=B) and the traffic 
passes via Router X and Y. If both X and Y send netflow records (v5 or v9) to 
the NTOP Collector then the Collector will be receiving the same conversation 
record twice, once from X and once from Y. If we count both records, then we 
are double counting. De-duplication eliminates one of the two records, as there 
is a recognition that it is the same record.
   
  Thanks
   
  Allan
  

Gary Gatten <[EMAIL PROTECTED]> wrote:
        v\:* {behavior:url(#default#VML);}  o\:* {behavior:url(#default#VML);}  
w\:* {behavior:url(#default#VML);}  .shape {behavior:url(#default#VML);}        
st1\:*{behavior:url(#default#ieooui) }                I don’t know what you 
mean about deduplication in this context.
   
  I think Cisco (and probably many others) have the v5 and v9 record formats.  
Should be pretty easy to compare them.  In fact, I recall seeing something on 
Cisco’s website about diffs between v5 and v9 records.
   
  G
   
   
      
---------------------------------
  
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of A H
Sent: Monday, December 03, 2007 2:50 PM
To: [email protected]
Subject: [Ntop] NTOP and de-duplication

   
    My first email to the NTOP list, so my apologies if this has already been 
asked and answered, butI have not seen the answer

    1. Does NTOP perform de-duplication?

    2. Trying to determine what v5 and v9 netflow attribute does NTOP parse and 
for attributes that it does not, how easy it would be to add them

     

    Thanks

     

    
    
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