Comtech EF Data VMS v3.12.x Vipersat - Manual (Page 210)

Network Manager Configuration MN/22156, rev 12
3-110 VMS User Guide
Redundancy Configuration
N:M Device Redundancy
If device redundancy for hub primary modems is desired, it should be config-
ured at this point. Complete instructions for configuring this feature can be
found in Appendix C, "Redundancy".
VMS Redundancy
If VMS server redundancy is desired, it should be configured at this point.
Complete instructions for configuring this feature can be found in Appendix C,
"Redundancy".
SOTM Configuration
This section applies only to those networks with mobile platforms, such as a
maritime environment, which are referred to as roaming or SOTM (Satcom On-
The-Move). The VMS incorporates automated features to seamlessly handle
configuration changes inherent to a mobile environment. If a platform transi-
tions to a new satellite, the VMS will automatically move the associated
antenna, update the Inband Home State, and remove and rewrite the appropriate
routes in the old and new TDM outbounds. QOS rules applying to the TDM
outbound for the remote site will be moved as well. If the transition involves
moving to a different hub, the modems will generate RIPv2 updates to the edge
routers providing a path to the Internet.
This process is illustrated below, in figure 3-124. Configuring this feature
requires that sites are on-line.