Comtech EF Data Vipersat SLM-5650A Guía de usuario Pagina 197

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Appendix C - Redundancy C-1
A
PPENDIX
REDUNDANCY
General
This appendix describes the optional redundancy services that protect critical
Vipersat network equipment. The two main services offered are VMS Redun-
dancy and Hub Modem Redundancy.
VMS Redundancy provides for N:1 redundant VMS server(s) (standby) co-
located at the Hub alongside the active VMS server. This configuration provides
for the automatic switch-over to a standby server in the event of a failure of the
active server.
Hub Modem Redundancy provides for the operation of N:M multiple primary
and multiple secondary modems installed at the Hub. If a protected device fails,
its output is automatically removed from the satellite network. A replacement
device, loaded with the failed device’s configuration, is booted into service and
its output is switched into the satellite network, replacing that of the failed
device.
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