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Polycom VMC 1000 Broadcaster Guide 
About Programs
62
Polycom, Inc.
  
Choosing Program Distribution Options
You can assign a single CDN to distribute your program to your users or you 
can distribute your program using CDNs associated with an Audience. An 
Audience in the Polycom VMC 1000 is collection of network routing 
information that decides what type of program should be distributed to what 
type of Viewers. Audiences are defined by a set of delivery rules. 
Delivery rules contain criteria that a program request needs to meet in order 
to be processed by a particular CDN. A delivery rule always has a 
corresponding CDN and one or more failover CDNs. 
Domain and System Administrator users can define Audiences. Broadcaster 
Administrators can only select Audiences as part of creating a program.
For example, System Administrator could divide Viewers into internal or 
external Audiences for a Broadcaster Administrator to select. The external 
Audience could consist of Viewers who are requesting a VOD or Live program 
and who would have that program delivered to them through a Cisco ACNS 
CDN. The internal Audience could consist of users who are requesting a VOD 
or Live program and who would have that program delivered to them 
through an Akamai CDN.
The Polycom VMC 1000 checks where the content request comes from and 
decides how to serve that content to an internal or an external Audience. The 
Polycom VMC 1000 uses request IP addresses, host names, and server port 
numbers to decide what CDN to use to serve the content to the Viewer.
Follow the steps in 
.
To select a CDN and a broadcast profile for program distribution:
1
Select the Delivery Option radio button.
NOTE: In order for the Akamai Audience to appear when creating a program form 
the Audience Manager page in the Polycom VMC 1000 Administrative Portal, you 
must create a Profile for Akamai which you will associate with the Broadcast profile 
you created for Akamai on the Distribution System page. 
After creating your Network profile on the Audience Management page in the 
Polycom VMC 1000 Administrative Portal, you should now be able to select the 
Akamai audience and Network profile when creating your Live Program.