Comtech EF Data MDX420 SkyWire Manual - Manual (Page 73)

MDX420 SkyWire™ Satellite Network Gateway SkyWire Controller (GUI)
MN-MDX420 Revision 6 7–17
 Reboot Network: Clicking on this box will manually tell all MDX-420 devices in the share-group to
shut down and perform a soft re-boot. This is useful when updating firmware on all sites in a
share group so that all sites shut down and start-up with the same FW revision. You will be
prompted to enter your SNMP V2 or SNMP V3 password to complete this action.
 Share Group Access Code: This is a field that can optionally be used to provide a unique name
for a share group. This is used primarily to prevent demodulators without the proper access code
from listening to the share group in a listen-only manner. Click the Edit button, create a unique
name and hit enter. Once entered on any site in a share group all other sites in the share group
will be given the new unique name. NOTE: This name will need to be manually changed on any
MDX-420 units listening to but not transmitting into (participating in) this share group. Any MDX-
420 that is participating in this share group will NOT require this name to be entered in order to
join the share group. If the name is not present or incorrectly entered the site will still join the
network if it is being requested to join and will automatically re-program the proper Share Group
Access Code into it’s table.
 The Remotes configuration section provides the mechanism to assign the sharing parameters for
each gateway that will be part of the selected share group. The setup of this table is done at a
single location for the share group and is distributed to all other sites participating in the share
group. Maintenance, additions, and deletions of gateways from the share group can be
performed from any active gateway location.
The upper portion of the screen indicates the minimum configurable step-size of the BW
parameters. This mimimum step size is automatically calculated by the MDX-420 based on
criteria such as Data Rate, Modulation, Performance and FEC that were all established in the
Modulator Configuration section of the GUI (see section 7.3.1). A multiple of this step size MUST
be used in setting all BW parameters.
The table has eight positions representing eight potential gateways in the share group. The
decision as to which position applies to a specific gateway is at the discretion of the network
administrator. Position in the table has no bearing on the bandwidth sharing priorities within the
share group.
For each position of the Remotes table three settings are used to determine how the carrier
bandwidth will be shared.
Dedicated Information Rate (DIR) – Data Rate in Kbits per second that cannot be used by anyone
except the assigned gateway.
Committed Information Rate (CIR) – Data Rate in Kbits per second that are available to the
assigned gateway when ever requested, but is pooled when not in use by the assigned gateway.
Maximum Information Rate (MIR) – The maximum Data Rate in Kbits per second the site can
use. An entry of “0” in this field means that you are not restricting the maximum Data Rate and
the site can use all available BW in the pool if allotted. A setting of “0” is the most common entry.
Elevation Angle - Antenna elevation angle at the site of the transmitting gateway identified in the
Access Code. An elevation angle of “270” is to be used for laboratory testing without any satellite
delay. An elevation angle of “180” can be used for sites that have an unknown elevation angle or
sites that may be in a mobile environment where the elevation angle is not known or changing but
can not be used in the lab environment.
Access Code - Enter the unique Gateway ID of the SkyWire gateway (refer to Section 7.4.1.1
“Gateway ID”). This is a hardware identification number and must be entered for the gateway to