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Table of Contents
3-DNS
®
Administrator Guide ix
6
Configuring a Globally-Distributed Network
Understanding a globally-distributed network ............................................................... 6-1
Using Topology load balancing ...................................................................................... 6-2
Setting up a globally-distributed network configuration ................................................ 6-2
Adding data centers to the globally-distributed network configuration ................. 6-3
Adding 3-DNS Controllers to the globally-distributed network
configuration ........................................................................................................... 6-3
Adding BIG-IP systems to the globally-distributed network
configuration ........................................................................................................... 6-4
Adding wide IPs to the globally-distributed network configuration ...................... 6-5
Configuring topology records for the globally-distributed network
configuration ........................................................................................................... 6-6
Additional configuration settings and tools .................................................................... 6-7
Setting limits thresholds ......................................................................................... 6-7
Other resources ....................................................................................................... 6-8
7
Configuring a Content Delivery Network
Introducing the content delivery network ....................................................................... 7-1
Using the 3-DNS Controller in a CDN ................................................................... 7-1
Reviewing a sample CDN configuration ................................................................ 7-2
Deciding to use a CDN provider .................................................................................... 7-4
Setting up a CDN provider configuration ....................................................................... 7-5
Adding data centers ................................................................................................ 7-5
Adding 3-DNS Controllers ..................................................................................... 7-5
Adding load balancing servers ................................................................................ 7-6
Adding wide IPs and pools ..................................................................................... 7-6
Adding a topology statement .................................................................................. 7-8
Ensuring resource availability ........................................................................................ 7-9
Monitoring the configuration ........................................................................................ 7-10
8
Working with Quality of Service
Overview of Quality of Service ...................................................................................... 8-1
Understanding QOS coefficients .................................................................................... 8-2
Customizing the QOS equation ...................................................................................... 8-3
Using the Dynamic Ratio option .................................................................................... 8-6
9
Working with Global Availability Load Balancing
Overview of the Global Availability load balancing mode ............................................ 9-1
Configuring the Global Availability mode ..................................................................... 9-3
A Global Availability configuration example ........................................................ 9-5
10
Adding a 3-DNS Controller to an Existing Network
Working with multiple 3-DNS Controllers .................................................................. 10-1
Preparing to add a second 3-DNS Controller to your network ..................................... 10-2
Installing the hardware and running the Setup utility ........................................... 10-2
Making the existing 3-DNS Controller aware of the additional
controller ............................................................................................................... 10-3