User guide

Vipersat Configuration
3-34 Vipersat CDM-570/570L User Guide
The Load Switching command on the Auto Switching menu is a toggle that
Enables and Disables Load Switching on the target CDM-570/570L. Entering
B at the command prompt will toggle between these two states.
Note: Load switching must be Enabled for any CDM-570/570L that will experi-
ence changing load conditions in order for the VMS to dynamically opti-
mize network performance on these circuits.
Application switching by the VMS, such as for Voice and/or Video, is not
affected by this setting. However, using Load switching for real-time
applications is not recommended.
STDMA Slot Capacity
This menu item appears for Hub modems only.
The STDMA Slot Capacity command allows setting the threshold or level of
slot capacity at which the Burst Controller sends a switch request to the VMS to
switch the Remote from STDMA mode to SCPC mode.
Typically the default settings will be optimum, but there may be unique network
configurations that require modifying the STDMA slot capacity value. To
change this setting, enter U at the command prompt in the Auto Switching
screen to display the dialog shown in figure 3-39.
Figure 3-39 STDMA Slot Capacity prompt
STDMA Switch Delay
This menu item appears for Hub modems only.
In order to minimize unnecessary switching from STDMA to SCPC due to tran-
sient conditions, such as a temporary spike in network traffic for example, a
switch delay parameter is provided. This setting is used to specify a delay before
a switch occurs.
Typically the default values will be optimum, but this value can be changed to
accommodate a unique network configuration or application. To change this
setting, enter W at the command prompt in the Auto Switching screen to
display the dialog shown in figure 3-40.
NOTE