Agree that this rumor surfaces pretty much every year. Given NetApp's current market cap of 11.5 B it would be by far the largest acquisition in the history of Cisco. />
Very unlikely in my opinion. NetApp was much cheaper in early 2016 and that would have been the time for Cisco to acquire NetApp when the stock was close to $20/share. Rumor was that NetApp was shopping itself like Pure is doing now. Things may be better for NetApp, but why buy a company with single digit growth when you can just continue to partner with them??