By starting userApplication, the take over virtual interface (sha0) over operating node becomes active allowing communication using the take over virtual IP address. When operating, GS linkage mode uses the Redundant Line Control function to communicate with the remote system.
Figure 5.20 Startup behavior of GS linkage mode shows startup behavior of GS linkage mode
Note
Activate logical interfaces (eth1:X, eth2:X) only when they are connected to GS via router.
Figure 5.21 Switching behavior of GS linkage mode illustrates switching behavior of GS linkage mode.
In the figure below, a takeover virtual interface (sha0) is activated in the operating node. When switching occurs due to a failure, deactivate takeover virtual interface (sha0) and the physical interfaces (eth1:X,eth2:X) in node A. On standby node B, it activates the takeover virtual interface (sha0), which bundles the physical interfaces (eth1, eth2).
Note
Activate or deactivate logical interfaces (eth1:X, eth2:X) only when they are connected to GS via router.
The procedure for performing fail-back is the same as in Fast switching mode. For details, see "5.4.1.3 Fail-back".
Figure 5.22 Stopping process of GS linkage mode illustrates stopping behavior of userApplication.
Note
Activate or deactivate logical interfaces (eth1:X, eth2:X) only when they are connected to GS via router.