Comtech EF Data Vipersat CDD-564L Bedienungsanleitung PDF herunterladen (Seite 3)

Guaranteed Bandwidth

Premium services offered by satellite service providers are far

more attractive if Service Level Agreements (SLA) can be

arranged through guaranteed bandwidth. A common business

model is to offer quality of service in the form of a Committed

Information Rate (CIR). Customers are willing to pay a premium

for service where their access and experience will meet or exceed

expectations. Low-latency and low-jitter connections are the

hallmark of SCPC links. However, the drawback has always been

the bandwidth wasted when the links are lightly loaded or offline

and the inability to offer Peak Information Rates (PIR) that exceed the guarantee on a best effort basis. This has been a feature of TDMA

solutions, but they do not provide the quality or efficiencies of SCPC circuits.

Our solution is the latest release of the Vipersat Management System. VMS has long been the industry standard for dynamic assignment

of SCPC links. Now, incorporating a guaranteed bandwidth algorithm, it provides you with a flexible solution for offering the highest quality

communications links which can be dynamically sized.

Service providers can now provide a service that guarantees bandwidth on a site basis, and can be reduced to a Minimum Information

Rate (MIR) if the site is lightly loaded. If the site is offline, it consumes no bandwidth and enables the provisioning of the bandwidth for

other sites. However, as soon as there is a need for bandwidth, VMS will resize other carriers (with as little network disruption as possible)

to ensure the site gets its guaranteed bandwidth. In addition, you can provide your users with priority within the dynamic allocation of

bandwidth. On a site by site basis, you can be assured that your most important links get the required bandwidth when needed.

In brief, there are three levels of service:

 Minimum Information Rate – A service level always available, ensuring the ability to enter a clear channel SCPC circuit or have a

timeslot in STDMA.

 Committed Information Rate – Bandwidth that is guaranteed to be available instantaneously based on the demand or contention.

 Peak Information Rate – Bandwidth that can be used by any site on best effort availability, and categorized through multi-level

prioritization.

SatCom On-The-Move (SOTM)

Our satellite on-the-move solution encompasses an integrated location server, Roaming Oceanic Satellite Server (ROSS), working in

conjunction with the VMS and associated remote modems to ensure seamless global connectivity for oceanic vessels. ROSS enables

remote modems to interface with stabilized, auto-tracking antenna, maintaining connectivity as vessels move through footprints of different

satellites, change footprints on the same satellite, or switch teleports. ROSS stores the operational and configuration information on-board

remote terminals. The satellite roaming functionality provides considerable added value, including:

 Link budget mapping – contains a series of images representing individual satellite footprints and calculates link budgets on the fly

 New transmission control mapping – identifies transmit or don’t transmit regions; disables transmission based on location

 World vector shoreline database rendering – provides database of world vector shorelines with better resolution than the Federal

Communication Commission (FCC) and Earth Station on Vessels (ESV) requirements

Our network solutions facilitate cost-effective, efficient and flexible satellite communications connectivity for maritime and

government/military applications. In comparison to other satellite roaming options, our solution provides higher service availability. By

pushing the network intelligence to the ship, a remote can make its own beam switching decisions when connectivity to the hub is

interrupted, thereby avoiding an extended inoperative state. Our superior link performance and unique technologies can enable your

organization to realize significant operating expense savings and solve key communications challenges.

Virtual Network Operator (VNO)

The VNO gives a satellite network administrator the ability to provide partitioned network management services using a single VMS. VNO

allows administrators the ability to selectively expose resources in their primary network to external resellers, customers, operators, and/or

partners. The VNO also provides the end user with the equivalent of their own dedicated VMS in their own virtual hub; allowing

management of authorized aspects of their satellite network. Operators and administrators can perform configuration, monitor, and control

functions relevant to their equipment and bandwidth allocation. This functionality is integrated in the VMS server as a web-based

client/server architecture.

The Basic User Authorization feature provides a simple security mechanism that is integrated into the VNO service and, therefore, easy to

deploy. If a more sophisticated security mechanism is needed to meet the network operator’s requirements, this feature can be disabled

and the network operator may elect to implement their own proprietary security mechanism. Since the VMS VNO interface is based on the

common SOAP web services protocol, creating additional applications that provide custom security functions is facilitated by the wide

variety of SOAP software development tools available.

VNO delivers significant benefits for satellite service providers, including:

 Lowers the barrier to entry for small networks leveraging larger established service providers

 Provides additional revenue generating value-added services via leveraging centralized network design expertise and first and

second level help desk support

 Potential to reduce operating expenses for the primary satellite provider since the VNO user assumes a greater role in managing their

own assigned resources

 Supports basic user authentication where access and operation privileges are granted to specific (virtual) networks

 Enables custom application development via software development kit

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