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Trango Systems TrangoLINK GigaPlus - Hardware triggered failover

Trango Systems TrangoLINK GigaPlus
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Trango Systems, Inc. GigaPlus User Manual Rev 3.1 43
The Table below shows the events will cause a failover from active to standby:
Table 10 Failover Events
Hardware triggered failover
In the event that the modem RX link is lost (status changes from “1” to “0”), a hardware
triggered failover will occur and the following sequence of actions will occur:
Actions:
1) The IF transmit signal will be shut off on the active unit and enabled on
the backup unit
2) The standby GigaPlus utype will change from standby to active and the
previously active unit utype will change to standby.
3) The Ethernet port will be shut down on the new standby unit if RPS was
enabled.
Event
Failover Type
(local Site)
Failover Type
(remote pair)
Modem link lost on Active
Hardware
Hardware
CLI “utype_switch”
Software
Hardware
Power supply failure on Active
Software
Hardware
Reboot on Active
Software
Hardware
ODU PLL failure on Active
Software
Hardware
Violation of threshold setting
Software
Hardware
Link related command (see list)
No failover
Hardware
Power supply failure on Standby
No failover
No failover
Reboot on Standby
No failover
No failover
Odupower on/off on Standby
No failover
No failover
ODU PLL failure on Standby
No failover
No failover
Modem link lost on Standby
No failover
No failover
1+1 cable removal/failure
No failover
No failover
ACM Tx/Rx profile changes
No failover
No failover

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