The Cisco Content Delivery Network System (CDN) is an integrated system for intelligently pre-positioning content at the network edge for faster, high-quality delivery of learning curriculum. The GLN CDN consists of Cisco Content Distribution Managers (CDM 4650s) at the Cable and Wireless Internet Services data center in San Jose, California; Cisco Content Engines (CE-507s) that store media-rich content at local Networking Academy sites; and the software that controls the flow of content. Currently, the network includes one active CDM and a second hot standby system. The primary CDM coordinates the activities of the CDN including bandwidth allocation, content replication, and device management.

The CDM also monitors CE connectivity to ensure that Academy CEs are online and able to receive content at their scheduled times. Academies simply indicate in their site surveys the times they want to receive content and the bandwidth that is available for the CDN to use.

The CDN redirects user requests to the local CE for delivery of the Networking Academy CCNA curriculum 2.1.4E, an enriched media curriculum that features streaming video, Flash animations, zoom photography, and topic drill down capability through More Info buttons.

For more information about Cisco CDN products visit www.cisco.com/go/content.

CDN Presentation
Review a description of Cisco CDN technology utilized in the Academy program for the optional delivery of supplementary curricula. >> More

University of Oregon  (PDF - 426 KB)
Read a case study showing how this university has developed and deployed e-learning assessment of its own.