ADC – Application Delivery Controller

Application Delivery Controllers (ADCs) are an evolution of server load balancers (SLB) that combine traditional load-balancing capabilities with features like automatic application health checks, SSL offload, proxy and reverse proxy capabilities, RAM caching, TCP reuse, web and DNS application firewalls (WAF and DAF) and application access management (AAM).

Together these features in an Application Delivery Controller work to ensure that an enterprise’s data center applications and networks remain highly available, accelerated and secure. At the heart of an Application Delivery Controller is its load-balancing capabilities, which automatically distribute processing and communications evenly across computer networks and servers so that no single device is overwhelmed, preventing potential downtime or performance degradation.

Origin of the Term Application Delivery Controller and ADC Vendors

Application Delivery Controller and the closely-related term Application Delivery Network (ADN) were marketing monikers first promoted by F5 Networks and later by competing ADC vendors to represent hardware and software solutions that provide front-end intelligence to facilitate and optimize application flows from client to server and back to the client.

Application Delivery Controllers are currently available from a wide variety of vendors, including most notably F5 Networks, Citrix, KEMP Technologies, and Fortinet. Another well-known networking firm, Cisco, was a key player in the ADC sector until 2012, when it decided to exit the ADC market.

Forrest Stroud
Forrest Stroud
Forrest is a writer for Webopedia. Experienced, entrepreneurial, and well-rounded, he has 15+ years covering technology, business software, website design, programming, and more.

Related Articles

Product Manager

A product manager is someone involved in all areas of production, including setting strategies; developing products; and working with relevant project team members, such...

Kintone

Companies looking for a business process management or customer relationship management (CRM) tool may wonder if Kintone is the right choice. In this Kintone...

Special Character

A special character is one that is not considered a number or letter. Symbols, accent marks, and punctuation marks are considered special characters. Similarly,...

HR Recruitment Software

HR recruitment software helps organizations find, recruit and hire the best job candidates.

Product Manager

A product manager is someone involved in all areas of production, including setting...

Kintone

Companies looking for a business process management or customer relationship management (CRM) tool...

Geotargeting

Geotargeting is a method of delivering data or content to users based on...