SAN DIEGO--(BUSINESS WIRE)--Pluribus Networks, the company that advances software-defined networking (SDN) through the industry’s most programmable, open source-based operating system, Netvisor®, announced today that it has signed a definitive technology and marketing agreement with Appcito, makers of the industry’s most scalable Private Cloud based application services, such as load balancing, application traffic visibility and analytics and comprehensive application security including Web App