Cisco Headend System Release 2.7 Design Guide

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Chapter 2    Elements of the SDV System 
 
 
 
18 
4024319 Rev B 
XDQA24 
The XDQA24 software is designed to support SDV. 
 
RFGW Software 
The RFGW software is designed to support SDV. 
 
Netcrypt Software 
The Netcrypt Bulk Encryptor software is designed to support SDV. 
 
DCM Software (Optional) 
The DCM software is designed to support SDV. 
 
DHCT SDV Client Software 
SDV functionality has been integrated into SARA, our Resident Application. Because 
all messaging interfaces are open and standard, other set-top applications are 
expected to support the standard SDV messages and behavior as well. 
In SARA, the new "WatchSDV" application inherits all of the functionality of the 
existing "WatchTV" application. This functionality enables SDV to support picture-
in-picture (PIP), pay-per-view (PPV), recording with multiple tuners, parental 
control, and other typical set-top applications. 
 
Gigabit Ethernet/IP Switch-Router Software 
The SDV system relies on standard IP multicasts and IP routing for the fundamental 
"switching" of the content streams. 
In order to be suitable for SDV, the edge router software must support IGMPv3. See 
GQAM Software (on page 17). Other than this support factor, standard IP routing 
behavior is expected of the software. No special support for, or knowledge of, the 
SDV application is required in the routing equipment or network. 
We will recommend a router that we have tested, or we can assist you with 
qualifying the router you choose to use in this environment.