Dell 3-DNS Administrator's Manual page 148

Dell 3-dns administrator guide version 4.5
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Glossary
CDN switching
CNAME record
completion rate
Completion Rate mode
Configuration utility
content delivery network (CDN)
data center
data center server
Glossary-2
CDN switching is the functionality of the 3-DNS Controller that allows a
user to redirect traffic to a third-party network, or transparently switch
traffic to a CDN. The two features of the 3-DNS Controller that make CDN
switching possible are geographic redirection and the pool type CDN.
A canonical name (CNAME) record acts as an alias to another domain
name. A canonical name and its alias can belong to different zones so the
CNAME record must always be entered as a fully qualified domain name.
CNAME records are useful for setting up logical names for network
services so that they can be easily relocated to different physical hosts.
The completion rate is the percentage of packets that a server successfully
returns during a given session.
The Completion Rate mode is a dynamic load balancing mode that
distributes connections based on which network path drops the fewest
packets, or allows the fewest number of packets to time out.
The Configuration utility is the browser-based application that you use to
configure the 3-DNS Controller.
A content delivery network (CDN) is an architecture of Web-based network
components that helps dramatically reduce the wide-area network latency
between a client and the content they wish to access. A CDN includes some
or all of the following network components: wide-area traffic managers,
Internet service providers, content server clusters, caches, and origin content
providers.
A data center is a physical location that houses one or more 3-DNS
Controllers, BIG-IP systems, EDGE-FX Caches, GLOBAL-SITE
Controllers, or host machines.
A data center server is any server recognized in the 3-DNS Controller
configuration. A data center server can be any of the following: a 3-DNS
Controller, a BIG-IP system, an EDGE-FX Cache, a GLOBAL-SITE
Controller, or a host.

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