Streaming Media Supplement sa2150 and sa2250

Chapter 7 Configuring Media-IXT for RealNetworks

If you see output, you have a VIP-capable cache plugin; if you see no output at all, you do not have a VIP-

capable plugin.

3. Copy the patched plugin to the Plugins/ directory of every RealServer in the server farm.

4. Add this line to each RealServers' rmserver.cfg file, substituting the virtual IP address of the layer 4

switch for xxx.xxx.xxx.xxx:

5. Now, on your Media-IXT host, edit the RealProxy rmserver.cfg file, adding this line:

6. Restart Media-IXT.

7. Restart each RealServer in the server farm.

Configuring reverse proxy for QuickTime and RealNetworks simultaneously

A single Media-IXT can perform reverse proxy for both RealNetworks and QuickTime origin servers

simultaneously. By adding a designator to a reverse proxy mapping rule in the remap.config file, you can

determine that the rule applies exclusively to either RealNetworks or QuickTime content.

You can do this either through Traffic Manager, or by manually editing remap.config.

The extra field appears at the end of an entry in remap.config and may have the value RNI for

RealNetworks, or QT for QuickTime.

These example remap.config entries would enable remapping of requests:

• from RealPlayer clients to an origin RealServer called actual-rni-server.com

• from QuickTime Player clients to an origin QuickTime server called actual-qt-server.com

map rtsp://rniserver.com rtsp://actual-rni-server.com RNI

map rtsp://qtserver.com rtsp://actual-qt-server.com QT

Configuring hierarchical proxy caching for RealNetworks

Before you begin configuring for hierarchical proxy caching, decide which Media-IXT is to be a child and

which is to be a parent. Decide which caches should serve as parents for each child cache.

Configuring Media-IXT for hierarchical proxy caching is done in two stages:

• First, edit the records.config file to enable parent caching on each child cache.

• Then, edit the parent.config file on each child cache to redirect streaming media traffic to specific

parent caches.

Remember, you make no changes on parent caches. All configuration is done on child caches.

To enable parent caching:

1. In VI, open the Media-IXT records.config file located in the Traffic Server config directory.

2. Search for the variable proxy.config.http.parent_proxy_routing_enable

3. Change the value of the variable from

CONFIG proxy.config.http.parent_proxy_routing_enable INT 1

4. Save the file.

NOTE In a standard configuration, you should never need to specify a port number in either the

URLs or the remap rules for RealNetworks streams.