The deal is expected to close in the second quarter of 2016. The move follows what Cisco Chief Financial Officer Kelly Kramer told Fortune over the summer about the company's plans to bulk up in security through acquisitions. Kramer said the company has "got balance sheet" to pull off big deals in a security startup landscape that is "ripe for consolidation." As of August, Cisco (CSCO) has $60.4 billion in cash and investments. Some of Cisco's noteworthy security deals have been its $635 million acquisition of networking security startup OpenDNS in June and its 2013 purchase of security firm Sourcefire for $2.7 billion. Cisco has been trying to make a big business out of cybersecurity, which is still a small compared to its bread-and-butter networking hardware business. In Cisco's fourth quarter, the company's networking hardware business brought in $5 billion in sales while its security unit took in $464 million.