Comtech EF Data VMS v3.12.x Vipersat - Manual (Page 174)

Network Manager Configuration MN/22156, rev 12
3-74 VMS User Guide
Figure 3-79 Revisions to AS Table Entries
Set SHOD Limits
The VMS Single Hop On Demand (SHOD) operates in environments where
variations in geographical location and Remote site hardware (antenna, power
amplifier, etc.) can create link power inconsistencies when referenced to the
Hub. Budgetary calculations may provide adequate link performance to the
Hub, but will differ when establishing mesh connections to one or multiple
Remote sites.
InBand management provides the SHOD Bit Rate Limit feature that can be used
when configuring a Remote site that will be utilized in SHOD/Mesh applica-
tions. Use of this feature may be required to accommodate for varying link
factors, such as disparity in antenna sizes and/or BUC specifications, which
affect transmit power limitations.
For example, a given data rate that is achievable when establishing a link with
the Hub may not be achievable when meshing with another Remote, due to
differences in the respective link margins. The differences could be significant
enough to prevent reliable communications for some mesh connections.