Bandwidth Issues White Papers
Shared vs. Dedicated Content Delivery Network
Overview
A new set of bandwidth- and CPU-intensive applications including corporate webcasts, e-Learning and secure
document distribution have pushed the traditional packet network infrastructure to its limit. These applications
require a new, content-smart infrastructure that can efficiently deliver the right content to the right place at the
right time.
In answer to these demands, many organizations are deploying Content Delivery Networks (CDNs) – coordinated
systems of content networking elements that are optimized to distribute content closer to users and deliver a high
quality of experience (QoE).
In the enterprise, CDNs are typically deployed either as a service in a public network or overlaid onto the existing
infrastructure in a private network. Content Delivery Service Providers (CDSPs) such as Akamai, Mirror Image,
and Digital Island offer a service that allows content providers to use the shared network for the distribution and
delivery of their content. These commercial CDSP services have been designed primarily to achieve economies of
scale for large web objects that change infrequently. By distributing infrequently changing objects such as
corporate logos, product photos, or menus, CDSPs improve the overall web site performance of public web pages
for end-users and customers. However, enterprises that want to optimize the delivery of internal, secure, or
frequently changing content need the control, manageability, and content management capability available from a
dedicated CDN solution.
As enterprises deploy CDN applications, the capabilities of each approach (shared and dedicated) should be
weighed against specific requirements of the application. In general, the public CDN approach is most appropriate
for cases in which broad geographic reach is critical, but security requirements are less important, while a
dedicated CDN approach is more appropriate for cases in which control over content distribution and end-user
Quality of Exper
| Publisher | CacheFlow | File Format | PDF & WORD |
|---|---|---|---|
| Date Published | November 2001 | Downloads | 44 |
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful? 7 out of 11 users found this white paper useful
White Paper RSS
Download
Register
