This guide systematically introduces Cisco's Digital Network Architecture (DNA), the enterprise network architecture for the next decade. Combining indispensable new insider information with content previously scattered through multiple technical documents, Cisco Digital Network Architecture combines technical depth, coherence, and comprehensiveness. This "living book" will be supported with regular online updates at a Cisco Press DNA website, offering a single authoritative source for everyone involved with DNA planning, implementation, and operation. Authored by insiders responsible for helping Cisco's largest customers succeed with DNA, it: Addresses emerging trends now driving business transformation Explains why networks must become radically more intelligent, flexible, and adaptable Shows how DNA empowers businesses by coherently integrating virtualization, automation, analytics, and cloud services. Authoritative and fully up-to-date, Cisco Digital Network Architecture will help technical professionals, decision-makers, and consultants prepare to drive maximum value from next-generation networking.