Midas controller options, Redundant controller – Comtech EF Data MIDAS 4 System and Design User Manual
Page 67
System and Design Manual, Revision 2
Network Management System 4–7
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The following options are available for the MIDAS Controller:
• Redundant MIDAS Controller with automatic switchover
• Redundant Network Control Modem with automatic switchover
• Redundant LinkSync™ Modem with automatic switchover
• Site power blocking
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Two methods are available for redundant MIDAS Controller configuration
with automatic switchover.
• Method 1 - Locally redundant Ethernet LAN MIDAS Controller
configuration is shown in Figure 4-2.
• Method 2 – Geo-redundant Dedicated Circuit (satellite transmitted)
MIDAS Controller configuration is shown in Figure 4-3.
One MIDAS Controller is configured to be the primary while the other
MIDAS Controller is configured to be the backup. The two NMS monitor
each other over the LAN. The backup MIDAS Controller also monitors the
outbound control channel. In case of failure, the backup MIDAS Controller
assumes the active role. When the failed MIDAS Controller is repaired, it
assumes the backup role. The two MIDAS Controllers keep the databases
synchronized over the LAN.
The MIDAS operator can:
• Configure and reconfigure the MIDAS Controller as primary or
backup.
• Switch between primary and backup MIDAS Controller without
changing the configuration.