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ROSS
MN/13070
4.24 Managing VMS
The active managing VMS sends an address announcement multicast message on timed intervals
containing its source IP address. This address is used by all listening units that match the
multicast address within the specified network. After reception of the active managing VMS
announcement multicast message, the then ROSS process the information and sets the VMS
destination IP address wherein to send unsolicited information. This address may change if there
is server alteration either through redundancy switchovers or administration of new IP address
network plan.
4.25 Operations Menu
The operations menu is used for performing common functions while the ROSS unit is
operational. These operations include maintenance tasks such as viewing event logs, or
enable/disable specific options that affect handoff, and most importantly, invoking a manual
handoff
4.25.1
Set Handoff Mode
This parameter is typically used for vessel commissioning allowing the installer to test basic
operations between service areas if possible. Additionally if the network operator or on-board
attendant determines that automation must be terminated during installation/test mode or vessel
in nonoperational state.
Comtech EF Data, Vipersat Products
Page 37 of 87
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