PRIMECLUSTER Global Link Services Configuration and Administration Guide: Redundant Line Control Function 4.1 (for Solaris(TM) Operating System)

2.3.6.1 Network high-reliability through redundant line control

Normally, the Solaris zones communicate with each other or the other systems by using the logical interfaces of the global zone that is allocated to the physical interface. If the physical interface fials, or part of the transmission route fails, communicatil wil be disrupted.

[Figure 2.53 Interface structure without redundant line cotnrol]

The above example shows that the Application A and B cannot communicate with each other when the transmission route fails.

The redundant line control function ensures operational continuity in the event of a transmission route failure.

Network high-reliability in fast switching mode

The following example shows how interfaces can be structed in fast switching mode.

[Figure 2.54 Network reliability in fast switching mode]

Even if a trousmission route fails on either of the physical interfaces, the applications will be switched over to the logical virtual interface on the standby node through redundant line control, so operational continuity is never disrupted.

Network high-reliability in NIC switching mode

The following example shows how interfaces can be structed in NIC switching mode.

[Figure 2.55 Network reliability in NIC switching mode]

Even if a trousmission route fails on the primary physical interface, the applications will be switched over to the secondary physical interface through redundant line control, so operational continuity is never disrupted.