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During a transition, the Primary is Deactivating, the Backup is Activating, and there is no direct
connection via the VIP:
After failover, the Backup unit is Active and hosts the Virtual IP Addresses, and the Primary unit is in
Standby:
During Backup operation, the Backup unit is Active and hosts the Virtual IP addresses; the Primary unit is
Remotely Shutdown:
Backup Link
The Primary and Backup system controllers communicate via two links, the Direct Link cable and the NIC
1 Ethernet port (labelled as IP Link). These two-communication links allow for the monitoring between
the Primary and Backup; both are required for a redundant system to work correctly. The status of both
communication links between the system controllers is displayed on the front panel of the TM1-MK3+
when it is configured in redundancy mode:
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