Applies To: Windows Server 2008, Windows Server 2008 R2
You can control how players and distribution servers receive a stream by adding a modifier to the path of a source. When a user opens a URL with a modifier, the Player property that is affected by the modifier is temporarily overridden with the new value. The property returns to the previous value when a user plays content that does not have a modifier.
You add a modifier the same way you would add a query string to an URL. After the URL, add a question mark character (?), followed by the modifier and the modifier value:
Using redundant encoders or other alternate content sources increases the reliability of the source content. If the primary encoder fails or is stopped, you can configure Windows Media Services to pull content from an alternate encoder or other content source after a specified period of time by using URL modifiers in the path to the primary encoder.
The modifier should be added to the src attribute value in a server-side playlist. You add the modifier the same way you would add a query string to an URL. After the URL, add a question mark (?), followed by the modifier and the modifier value: