Primary Heart Beat; Home State Revert - Comtech EF Data Vipersat 564L User Manual

This managing address is automatically updated on a periodic basis for units
that are newly enabled, incorrectly set, or following VMS changeovers (redun-
dancy switching). The status of the registration process is displayed for this
parameter as follows:
• NOT-DEFINED — unit has booted up, but is unaware of the managing
• No STDMA Xmit Grant — operator has entered managing address, but
• Sending Registration (n) — unit is receiving burst maps and the number
• Registered — unit is registered with the VMS. For VMS v3.6.0 and later,

Primary Heart Beat

This menu item appears for the Hub terminal only.
The Primary Heart Beat feature is a redundancy heart beat message for
primary Hub units that provides the option for a periodic communications check
message to be sent from the Hub modem to the VMS for backup recovery in
N:M redundancy (protected) configurations. The message interval is hard-coded
in the demod.
Enter P at the command prompt in the Vipersat Configuration screen
(figure 3-6) to toggle this feature between Enabled and Disabled.

Home State Revert

This menu item appears for the Remote terminal only.
The Home State Revert feature allows automatic resource recovery to be
performed on SCPC connections when a communications failure occurs
between the VMS and a Remote, such as a rain fade condition, a Remote unit
power down, or a hardware failure. The period of time (in minutes) for a failure
is configured in the VMS for each Remote in the network. Should communica-
tions be lost for more than the specified time period, the Remote will automati-
C h ap t e r U s i n g t h e C o m m a n d L in e I n t e r f a c e ( C L I )
3 -
multicast message. However, the modems WILL NOT send their regis-
tration messages until this address is set.
Once the unit is registered, the I command is removed from the Vipersat
Configuration menu.
address.
unit (Remote) is not currently receiving burst maps.
of registration attempts (n) is displayed.
the VMS version number is also displayed (as shown in figure 3-6).
V i p e r s a t C o n f i g u r a t io n
3-39