We run a comprehensive CVP model. This includes AS5400 for ingress gateway, AS5350 for VXML, Cisco Unified Presence (stateless sip proxy), and CVP/ICM.
Currently the IIS server that is serving the vxml pages/media to the 5350 is currently set to pass the http header cache-control with a duration of 30 mins. When I do a show http client cache I can see that the freshtime on some files is set to 1800 which is the 30 minutes cache-control setting that is configured on IIS, which is a global setting.
However I see files that have the default freshtime such as 864,000 (24 hours) that is somehow getting set by the IOS. I've been told the IIS server is globally configured in such a way that each cache-control header in the http response will be set to 1800.
Is there anything else I can look at here? We believe this is causing issues when new media files are loaded on the IIS server and they never show up in cache on the vxml browser.
Please let me know what info would be helpful.