It seems that I can only go back and look at detailed information 2 days using Absolute Time Period.
When I try and go back 3 days I get this message:
Chosen time period will be adjusted according to data storage granularity
Then it changes from 9/5/2009 12:00am to 9/6/2009 12:am. So it compresses a whole days worth of netflow data.
I really need to be able to search back 6 days to/from any specific hour.
My settings are as follows.
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NetFlow Settings
NetFlow Traffic Analyzer version: 3.5 SP1
Global Settings
Keep uncompressed data for 1 hours
Keep compressed data for 30 days
Calculate Absolute Percentages for Top XX Lists Percentages
Default resource time period is Last 15 Minutes
Automatic addition of NetFlow sources is enabled
Data retention for traffic on unmonitored ports is enabled
NetBIOS resolution of endpoints is enabled
Monitoring of flows from unmanaged interfaces is enabled
DNS information is resolved persistently
The default number of days to wait between DNS lookups is 2
The default number of days to wait between DNS lookups of unresolved IP addresses is 2
Database Maintenance Settings
Database maintenance is enabled
Database maintenance is executed at 1:30 AM.
Delete expired flow data: once a day
Maximum time spent to process IP addresses: 15 minutes.
Compress database and log files once every ten days.
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Please let me know if you have any suggestions.