Streaming Media Supplement sa2150 and sa2250

Chapter 9 Configuring Media-IXT for QuickTime

CONFIG proxy.config.http.transaction_active_timeout_in INT 14520

CONFIG proxy.config.http.transaction_active_timeout_out INT 14520

3. Force Media-IXT to re-read its configuration files. From Media-IXT’s bin directory, run the command:

./traffic_line -x

Configuring transparent proxy caching for QuickTime

To perform transparent proxy caching, Media-IXT must have Adaptive Redirection Module (ARM) enabled.

You enable ARM by choosing to do so during installation.

If you enable ARM during installation, you are also prompted to choose any protocols besides HTTP for which

you want Media-IXT to provide transparency. If ARM is enabled at all, Media-IXT provides HTTP

transparency. Choose RTSP if you want Media-IXT to perform transparent proxying (with no caching) for

QuickTime content.

See the HP Cache Server Appliance Administrator Guide for information about ARM.

Configuring a layer 4 switch for transparency

Layer 4 switches from Alteon, Arrowpoint, and Foundry are among those qualified to provide transparency for

Media-IXT. Contact your switch vendor for documentation about how to operate the switch.

For sample layer 4 switch configurations providing transparency for streaming media protocols (RTSP and

MMS) as well as HTTP, see the HP Technical Support website:

http://www.hp.com/serverappliances/support

Configuring a WCCP2-compatible router for transparency

WCCP2-compatible routers provide transparency for Media-IXT. Contact your router vendor for

documentation about how to operate the router.

For more information about these issues, and sample WCCP2 router configurations providing transparency for

streaming media protocols (RTSP and MMS) as well as HTTP, see the HP Technical Support website:

http://www.hp.com/serverappliances/support

Configuring reverse proxy caching for QuickTime

What’s special about reverse proxy caching is that the advertised origin server name and the host name of the

origin QuickTime server are different. The Media-IXT needs to know the origin QuickTime server name that

corresponds to the advertised server name.

For example, the advertised media server name might be greatmovies.com, and the origin QuickTime

server might be reallygreatmovies.com.

You must configure Media-IXT to understand the correspondence between advertised server names the origin

QuickTime server hostnames by editing the remap.config configuration file.

NOTE Elsewhere in this manual, we say to restart Media-IXT after editing configuration

variables. That rule is valid for configuration variables associated with streaming

protocols. HTTP is not normally a streaming protocol, though, and after editing HTTP

configuration variables, the command traffic_line -x is sufficient.