Comtech EF Data VMS v3.12.x Vipersat - Manual (Page 512)

Operational Procedures MN/22156, rev 12
F-14 VMS User Guide
Caching Test Verification
Use one or all listed variables in the “Vipersat Management System SNMP
Module” to exercise the caching capabilities, at customer's discretion.
Execute the following procedure:
1. Verify normal communications to Remote device using the VMS device
parameter view, as shown below in figure F-10.
Figure F-10 Modulator Device Parameter View, VMS
2. Select the OID from the supported list.
3. Power off the Remote unit to disable it.
4. Query the selected OID.
Note: During the time of communications failure, the caching will be valid for up
to three minutes, with the connection state identified as “Disconnected”.
After this period, the VMS will return a “Timeout” connection error.
This provides a simple method for determining whether caching is work-
ing correctly.
NOTE