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PRIMECLUSTER Global Link Services Configuration and AdministrationGuide 4.3Redundant Line Control Function

2.5.1 Link status monitoring function

In Virtual NIC mode, link statuses of physical interfaces are permanently monitored to detect a link down and a link up. If any link down has been detected in an interface on the active side, and if an interface on the standby side is available, a failover of the transfer path is performed immediately.

Figure 2.40 Link status monitoring function

Monitoring the link status is started on activation of a virtual interface and stops on deactivation of it. You cannot stop monitoring while a virtual interface is activated.

Point

Immediately after activating a virtual interface, the system waits for 5 seconds until the links of the bundled physical NICs are established. Therefore, a failover is suspended by 5 seconds after detecting an NIC failure.