Comtech EF Data Vipersat Load Utility v3.5.x User Manual

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Appendix A - Glossary

A-11

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.

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.

VFS Vipersat File Streamer – A file transfer application utilizing UDP and a proprie-

tary Streamload protocol to transmit data across the Vipersat network.

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

expose resources in their satellite network to other service providers, customers,

or partners.

VoIP Voice over IP – The routing of voice communications over the Internet or

through any IP-based network.

VOS Vipersat Object Service – The main software service of the VMS application.

Wizard A specialized program which performs a specific function, such as installing an

application.

WRED Weighted Random Early Detection – A queue management algorithm with

congestion avoidance capabilities and packet classification (QoS) providing

prioritization.