How Excelerator Manages Cache Freshness for Streaming Objects

The cache freshness revalidation settings for HTTP (on the Cache > Tuning tab) and RTSP (on the Streaming > Streaming Management Configuration tab) do not apply to Windows Media objects.

Instead of referring to header values or using Excelerator freshness settings for streamed objects, Media Excelerator revalidates Windows Media objects with every request.

Windows Media objects do not expire in cache. Instead, the system removes the objects when:

• It needs memory or disk resources for newly requested objects.
• Objects are purged as described in Purging Streaming Objects .
• Storage settings are hit.