"Reuters' Stephen Nellis reported this week that ACI software itself may not be doing particularly well. Nellis said he saw documents that showed Cisco had $888 million in contracts for its Nexus 9000 switches but only $89 million for ACI. That means only about 10% of companies that bought the switch also bought the optional software, he reported. Cisco declined to comment on these figures."
https://www.google.co.uk/amp/s/amp.businessinsider.com/cisco-competitors-kicked-it-in-the-teeth-this-week-2017-1?client=safari