Comtech EF Data CDM-570/L Vipersat Parameter Editor - Manual (Page 62)

Vipersat
2-46 CDM-570/L, CDD-56X Parameter Editor User Guide
Note: Load switching must be enabled on all CDM-570/570Ls in a network in
order for the VMS to utilize load switching when dynamically optimizing
network performance as load conditions change.
If the application rate is less than the load, the VMS will not switch. It will,
however, set up SHOD (Single Hop on Demand) if the application
requires it.
Application switching by the VMS (such as Voice and/or Video) is not
affected by this setting. However, using Load switching for real-time
applications is not recommended.
The appearance of parameters for Load Switching will differ, depending on
whether the unit is configured as a Hub or as a Remote.
SCPC Step Up Threshold
Appears for Remote modems only.
The SCPC Step Up Threshold field establishes the percentage of bandwidth
use that will trigger a switch up from the present SCPC rate to a higher rate to
ensure that there is sufficent bandwidth available for current conditions. Valid
range is from 65 to 100 %.
Typically, the default value will be acceptable, but this value can be changed to
accommodate a unique network configuration or application. Note that this
value must be greater than the value specified for the SCPC Step Down Thresh-
old (see below).
SCPC Step Down Threshold
Appears for Remote modems only.
The SCPC Step Down Threshold field establishes the percentage of band-
width use that will trigger a switch down from the present SCPC rate to a lower
rate to ensure efficient bandwidth usage. Valid range is from 1 to 95 %.
Typically, the default value will be acceptable, but this value can be changed to
accommodate a unique network configuration or application. Note that this
value must be less than the value specified for the SCPC Step Up Threshold (see
above).
SCPC Step Delay
Appears for Remote modems only.
The SCPC Step Delay field allows a switching delay period to be specified to
ensure that a premature switch up or down in the SCPC rate does not occur due
to a temporary rise or fall in traffic.
NOTE