Comtech EF Data DTMX5000 SpectraCast - Manual (Page 170)

High Availability Server DTMX5000 IP Satellite Gateway
C–2 Rev. 1
C.1.1 Standard References
1.System standards
•
SNMPv2RFC1902-RFC1906
•
IEEE 802.3 Ethernet 100BaseT
•
RFC 791 IP
2. ETSI standards
•
ETS 300 800
•
ETS 300 429
•
EN 300 192
C.2 General Description
C.2.1 Brief System Description
The HAS-2000 functionality is to monitor constantly the status of the Gateways/INAs
connected to the C&M LAN and verify their availability. It is keeping date base mirror
of all active Gateways/INAs and update it when there is a change in one of the
Gateways/INA’s parameters. When a faulty condition is detected in one of the
Gateways/INAs, the HAS-2000 will switch the traffic of the faulty unit to a stand-by unit.
The switch over will be done in following steps:
•
Download the relevant mirror data base to the stand-by Gateway / INA
•
In parallel, switch over the IF transmission
•
Send deactivated command to the faulty unit
•
Activate the stand-by unit
The HAS-2000 is based on a PC that has 100BaseT interface and RS-232 port for IF
switch connection. The software system available on the PC is completing the product
functionality.