User guide

Appendix I - Glossary I-9
VCS Vipersat Circuit Scheduler – 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 broadcast-
ing.
VFS Vipersat File Streamer – A file transfer application utilizing UDP and a proprie-
tary Streamload protocol to transmit data across the Vipersat network.
VMS Vipersat Management System – A comprehensive M&C tool providing rapid
and responsive control of Vipersat satellite networks.
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.
W
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.