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Cabletron Systems MT8-MIM Especificaciones Pagina 65

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Configuration Views Setting Redundant Circuits
SPECTRUM Enterprise Manager Page65 Cabletron Ethernet Hubs
Figure 10:
Figure 10:Figure 10:
Figure 10: Redundantly Connected Hub
Device
The following example illustrates redundancy
between hubs.
Say that you have used redundant circuit
management to create a connection between the
Accounting Department and the Payroll
Department of your company. These departments
are on the same floor and have two repeaters
between them on an Ethernet network. Suppose a
system overload occurred when you were sending
direct deposit payroll information from the Payroll
Department to the Accounting Department the
night before payday. This could be a disastrous
situation.
Redundant circuit management would prevent
this situation by allowing the primary hub device
to automatically switch from the primary circuit
to the secondary circuit. The backup circuit
would become active and continue sending data
over its cable connection. Redundancy becomes
especially important for unattended night time
batch jobs, or for jobs where a communications
problem could seriously interfere with normal
business operations.
Setting Redundant Circuits
The following procedure uses an IRM2 hub device
as an example. However, this procedure can also
IRB
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Primary Hub Device
Secondary Hub Device
Primary Active Circuit
Backup Inactive Circuit
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