Comtech EF Data VMS v3.12.x Vipersat - Manual (Page 544)

MN/22156, rev 12
H-12 VMS User Guide
UDP
Multicast
A multicast transmission using the UDP protocol.
Unicast Transmitting information/data packets to a single destination on the IP network.
V
VCM Variable Coding and Modulation – A technique that optimizes bandwidth utili-
zation in a wireless data link by varying the forward error correction code rate
and the modulation order within a single carrier. A feature of DVB-S2 that is
supported in CEFD modems such as the CDM-800 Gateway Router.
VCS Vipersat Circuit Scheduler – The ArrangeLink VCS is a proprietary satellite
communication scheduling system used to schedule Vipersat network resources
in support of a variety of high-priority applications such as video conferencing
and scheduled broadcasting.
VersaFEC Advanced forward error correction technology from CEFD that provides maxi-
mum coding gain with lowest possible latency to support latency-sensitive data
applications, such as voice, video, and cellular backhaul.
VESP Vipersat External Switching Protocol – A switch-request protocol that allows
external VPN equipment and Real-time proprietary applications to negotiate
bandwidth requests between any two subnets on a Vipersat network. VESP is
used by newer Vipersat modems (e.g., SLM-5650A) to send a switch request to
the VMS to establish a new satellite link or adjust bandwidth for an existing
link.
VFS Vipersat File Streamer – A file transfer application utilizing UDP and a proprie-
tary Streamload protocol to transmit data across the Vipersat network.
ViperView The graphical user interface for the client component of the VMS that provides
the means to configure, control, and monitor Vipersat satellite networks.
VLoad Vipersat Load Utility – A comprehensive tool for managing and distributing
application, configuration, and identification information for the modem/routers
in Vipersat satellite networks.
VMS Vipersat Management System – A comprehensive M&C tool providing rapid
and responsive control of Vipersat satellite networks. Comprised of client and
server components.
VNO Virtual Network Operator – A provider of management services that does not
own the telecommunication infrastructure. The Comtech Vipersat Network
Products’ VNO solution allows satellite space segment operators to selectively