Please gow do I get previous dates history on the traffic history?. It only displays that for the day.
CiscoView does not have a backend database, so the amount of history is contingent on the number of configured buckets on the device and your sampling interval. Since each bucket is carved out of switch memory, you do not have an infinite amount at your disposal. Therefore, a larger sampling interval will be needed to get large history.
For example, if I configure 500 buckets with a sample interval of 1800 seconds (30 minutes), I can have history going back almost 10.5 days.