Specifications

F-4
Cisco TV CDS 2.5 ISA Software Configuration Guide
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Appendix F Engineering Access Level Pages
CDSM or VVIM Setup
Stream Destination
The possible settings for Stream Destination are Cable, IPTV, Mixed, and Auto.
The Cable setting is the existing configuration with the QAM Gateway page and Headend Setup page,
which allows you to map Stream Groups to QAM devices and service groups if applicable.
The IPTV setting provides the Stream Destination page in place of the QAM Gateway page and Headend
Setup page. The Stream Destination page allows you to map the Stream Groups to specified subnets,
which is useful in IPTV networks where each end-user has an IP address.
The Mixed option for Stream Destination allows both cable and IPTV configuration. Previously, only
one Stream Destination type was allowed. The Mixed option makes the QAM Gateway page and
associated Headend Setup page available, along with the Stream Destination page.
In ISA environments, the Mixed option is only available for gigabit Ethernet streaming. The Streaming
Mode is set on the following configuration pages:
• VVI with Content Storage set to Shared—Shared ISA Setup page
• CDS (legacy)—Streamer BMS page
• VVI with centralized management (combined VVIM and Stream Manager)— Streamer BMS page
• VVI with Content Storage set to Distributed—CDSM Setup page under VVI section
The Auto option was added for RTSP environments, where it typically is not necessary to explicitly
configure QAM gateways or IPTV subnets. The Auto option removes these configuration pages from the
CDSM GUI. The Auto option is not supported for ISA environments.
Note The Stream Destination feature is available only for single-site steering and in ISA environments that
use gigabit Ethernet streaming as the streaming mode.
NAT Support
An option for ISA environments using the IPTV setting for the Stream Destination is the NAT option.
The NAT Traversal feature allows streaming to client devices that are behind a NAT device. All session
setup messages go through the backoffice before reaching the RTSP server, while all stream control
messages go directly to the RTSP server from the STB for IPTV networks using NAT.
The supported LSCP client protocols for the NAT Traversal feature are the Cisco (RTSP) and TTV
(RTSP). The LSCP Client Protocol must be set to one of these two options on the Streamer BMS page
See the “Configuring the Streamer for BMS Connectivity” section on page 4-45.
Parent/Child Service Groups
Parent/Child Service Groups is an optional feature and is only for ISA environments that use ASI
streaming. The Parent/Child Service Groups page allows finer granularity of the service groups. For
more information, see the “Configuring Parent/Child Service Groups” section on page 4-19.