Streaming Media Supplement sa2150 and sa2250

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Chapter 8 Configuring Media-IXT for WMT
Next, the mms map rule:
map mms://10.10.10.10:1755/ mms://source.pix.com:1755/
The mms map
rule can alternatively be in this form:
map mms://10.10.10.10:1755/ mms://11.11.11.11:1755/
The reverse_map rules (naturally) reverse the terms of the map rules:
reverse_map http://relay.pix.com/ http://www.pix.com/
reverse_map mms://11.11.11.11:1755/ mms://10.10.10.10:1755/
reverse_map mms://source.pix.com:1755/ mms://www.pix.com:1755/
The last mms reverse_map rule can alternatively be in this form:
reverse_map mms://source.pix.com:1755/ mms://10.10.10.10:1755/
The use of the IP address in remapping rules is unique to WMT. For both RealNetworks and QuickTime,
remapping rules use Media-IXT’s hostname and not its IP address.
A port number appears in a remapping rule for reverse proxy only when the port used for the rule’s protocol is
a non-standard port. So, if you use port 1755 for MMS, which is the standard port for that protocol, your map
rule takes this form:
mms://11.11.11.11/ mms://10.10.10.10/
If you use a non-standard port for MMS, say 9090, the rule must specify the port:
mms://11.11.11.11:9090/ mms://10.10.10.10/
As of Media-IXT 4.x, rules with a scheme of mms work for URLs whose scheme is mmsu and mmst as well.
After we modify remap.config, tell Media-IXT to re-read the file. From Media-IXT’s bin directory, run the
command:
traffic_line -x
Configuring hierarchical proxy caching for WMT
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.
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 0 to 1:
CONFIG proxy.config.http.parent_proxy_routing_enable INT 1
4. Save the file.
To set the child cache to redirect streaming media traffic to a specific parent cache:
Next, you need to add a parent proxy rule to the Media-IXT parent.config file on the child cache to
redirect streaming media traffic to a specific parent cache. (Adding a list of parent caches here is unsupported
in Media-IXT 4.x).