Watch CNBC's full interview with Cisco CEO Chuck Robbins and Splunk CEO Gary Steele

Cisco chairman and CEO Chuck Robbins and Splunk CEO Gary Steele join 'Squawk on the Street' to discuss Cisco's acquisition of cybersecurity software company Splunk for $157 a share in a cash deal worth $28 billion, why Splunk decided to sell the company, the growth opportunity ahead, and more.