Streaming Optimization

This capability requires Rules Engine - Advanced Rules which must be purchased separately. Contact your CDN account manager to activate it.

Category: Specialty

Purpose: Tunes your caching configuration to optimize performance for live streams and to reduce the load on the origin server.

Key information:

• The scope of this feature is automatically restricted to HTTP streaming requests (i.e., HLS, HDS, MPEG-DASH, and Smooth Streaming).
• Only use this feature to automatically tune your caching configuration for live streams. Do not enable it for video on-demand (VOD) streaming.

• Configure this feature by setting the Enabled option to Yes.

  Enabled	Result
  Yes	Applies an optimized caching configuration to your HTTP streaming requests.
  No	This state is disallowed. Policies that contain a rule with this feature set to "No" cannot be deployed.

• This feature cannot be disabled. Since this feature should not be enabled for VOD streaming, it is important to configure your match conditions so that they are not satisfied by VOD playback requests.

  Sample Scenario:

  One way to only apply this feature to live streams is to place it below a URL Path Regex match condition that is configured as follows:

  Setting	Value
  Result	Match
  Value	/2[14].*
  Ignore Case	yes

  The above configuration will only apply this feature for Smooth Streaming and Dynamic Cloud Packaging live streaming playback requests.

• This feature may only be used with the following match conditions:

  • Always
  • Customer Origin
  • CDN Origin
  • URL Path Literal
  • URL Path Regex
  • URL Path Wildcard
  • URL Path Directory Literal
  • URL Path Directory Wildcard
  • URL Path Filename Literal
  • URL Path Filename Wildcard

Default Behavior: Disabled. Your cache configuration will determine the caching behavior for HTTP streaming requests.