Cisco Cisco ACNS Software Version 5.5 기술 매뉴얼

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Configuring Transparent and Proxy Media
Redirection Using ACNS Software  4.x
Document ID: 4717
Contents
Introduction
 Before You Begin
      Conventions
      Prerequisites
      Requirements
      Components Used
 Configure
      Network Diagram
      Configurations
 debug and show Commands
      Cache Engine show Commands
      Cache Engine debug Commands
      Router show commands
      Router debug commands
 Command Summary
 Related Information
Introduction
This document describes how to configure the Cisco Cache/Content Engine for transparent and proxy media
caching using Web Cache Coordination Protocol (WCCP) version 2. Cisco ACNS Release 4.x, includes, as an
option, the RealProxy from RealNetworks, Inc. 
 to support both stream splitting (distributing live feeds)
and streaming media caching (on−demand content) in both Real−Time Streaming Protocol (RTSP)−based
streaming and other Real PNM (RealNetworks metafile) formats.
The Content Engine can be configured to transparently accept RTSP requests redirected from the WCCP
router, as well as traditional proxy−style RTSP requests from RealPlayer client software. Streaming media
caching provides content on demand to the extend that, if a user has already viewed a cached streaming media
file, it can be served to subsequent users without the requirement to connect to the origin server. Be aware that
live broadcasts cannot be cached.
To configure the Content Engine to accept RTSP traffic, complete these steps:
Issue the rtsp proxy command in global configuration mode for entering the IP address, port, and the
license used in the RealProxy of the Content Engine.
1. 
Issue the wccp media−cache global configuration command to register the Content Engine with any
WCCP−enabled routers.
2. 
Streaming media objects are cached in the media file system (mediafs) disk partitions while the RealProxy
software is copied to the software file system (swfs) partition as part of the installation procedure. Issue the
disk command to create the mediafs partitions; issue the mediafs command to maintain these partitions (refer
to Maintaining the Hard Disk Storage for further information on disk partitions). The RealProxy software can
be administered with the RealAdministrator GUI  (to access this page, the default username/password is
admin/diamond).