The offer was made recently, and the companies are not in active talks, the newspaper said, citing some of the sources.
Cisco did not immediately respond to a request for comment. Splunk said it does not comment on rumors or speculation.
In November last year, San Francisco-based Splunk announced Doug Merritt had stepped down as its chief executive officer and the company's chair, Graham Smith, would be the interim CEO.
The-CNN-Wire
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