Block III Flashcards
(51 cards)
What does CNPS stand for?
Common Network Planning Software
What does CNPS primarily focus on providing it’s planning capability for?
DSCS
WGS
*** it is also capable of planning on any transponded satellite operating in the X, C Ku or Ka bands
What is CNPS?
SATCOM planning tool deployed globally
*** used by WSOCs, RSSCs and SSE (SATCOM system expert) under Delta 8
Global data concurrency strategy is provided through CNPS via…?
a single master database schema with two sites as backup host (aka Master MPDB)
*** This ensures data continuity between all of the CNPS management, planning and control sites.
How many servers are there for CNPS?
Three - Database, Application and RemoteApp
What does the CNPS database server do?
Maintains all satellite, terminal, frequency converter, waveform, modem, and filter statics used as the building blocks in defining the satellite communications services contained in
the CNPS scenarios which reside in the Master Planning Database (MPDB). The
Database Server also holds the active satellite configuration and all the associated
communications services contained in the “active on the satellite” scenario in the Operational Scenario Database (OSDB)
What does the CNPS application server provide?
Application Server processes information and forwards requests between the CNPS Client and the Database Server and hosts various software functions such as the
Supportability Analysis engine for DSCS; a SA engine for WGS; SA engine provides the link budget calculations necessary for determining the supportability of a particular satellite configuration and its associated communications services.
*** Receives requests for information from the WSOMS workstation and sends the request to the Database Server. The Database Server sends the responses back to the Application Server. The Application Server processes the information and sends the response to the WSOMS workstation user. The Application Server speeds up communication within the network by caching requests. This allows the Application Server to store the most frequently used
requests for immediate processing
What does the CNPS RemoteApp server provide?
Human Computer Interface (HCI) Client software that resides on the WSOMS
workstation. In V7.0, CNPS Clients also become virtual machines (VMs) residing on the
RemoteApp server and are accessible by RemoteApp shortcut and Remote Desktop
Protocol connection from any desktop.
** RemApp Server host all remote client VMs and will point all clients to the correct
Database and Application server, using its registry settings. (Note with Version 7,
There will only be one active Database and Application Server Running)
What is MPDB?
When talking about the database server, it contains two databases. MPDB is one of them.
Master Planning Database (MPDB) contains all of the CNPS static and instance data used for
communications planning and satellite configurations
What is OSDB?
When talking about the database server, it contains two databases. OSDB is one of them.
This contains information in the incorporation phase. The OSDB stores the operational scenario data that is considered “active on the satellite.” The OSDB allows other subsystems access to its data via the WSOMS database
management service for use in other operational activities. This allows other subsystems communicating with CPS to use information for reporting and other operational activities.
What is static data?
In order to create usable SATCOM links, CNPS employs the use of static data to describes types or instances of:
─ Satellites
─ Terminals
─ Frequency Converters
─ Waveforms
─ Modems
─ Filters
─ Jammers
There are two categories of static data. They are…?
- Static Types - this is a blueprint for any form of static data. It does not represent specific physical hardware. Instead, it represents the performance characteristics of the static type. For example, WGS satellite, DSCS satellite, MD-1366 modem.
- Static Instances - this represent a physical piece of equipment. For example, the “Indian Ocean WGS satellite” is a static instance of a WGS satellite type.
The CNPS operating system is…?
Windows Server
Any changes made to the MPDB is replicated…?
across the entire network so that every site always has the most current version of the database
What is the HCI client?
This is the user interface to perform all SATCOM planning, managing, and control fucntions and send requests to the Application server which passes those requests to the database server and that will be sent back to the HCI client
Operators can only configure static instances of what?
satellites, frequency converters and terminals
A satellite instance contains what specific information?
─ Includes orbital position
─ Includes payload configuration for beam forming, antenna pointing and channelizer
connections
A terminals instance contains what specific information?
─ Includes one or more terminal locations
─ Performance parameters that represent a specific terminal’s performance
What is an epoch?
A moment in time when a change in the CNPS scenario occurs. These changes include:
- Static Data changes (SDC)
- Satellite Payload Configuration Changes
- Service Start and Stop Times
- Terminal Location Changes
- Terminal Configuration Changes
What is CNPS Services?
This contains all of the necessary information to create a SATCOM link.
CNPS is hierarchial. Plans -> Missions -> Services
What is the difference between a plan, mission and service?
Plan - a folder containing one or more missions (the highest level of organization)
Mission - a subset of a plan containing one or more services
Services - subsets of missions (which are made up of associated terminals and the links that connect them)
Even if there is a single Service to be created, it still requires a…?
associated mission and plan
This is a crucial feature of CNPS planning. It tests a service to determine if it is supportable on the satellite.
Supportability Analysis (SA)
*** this examines each EPOCH to determine if it is supportable in conjunction with all other existing service and satellite configurations.
A Service can be placed on the schedule after what occurred?
It passes the SA (supportability analysis)