Allied-telesis AT-S47 Manual do Utilizador descarregar pdf (Página 61)

AT-S47 Management Software User’s Guide

If a loss of connection occurs between two multiplexing ports, the links

are dropped on the corresponding GBIC modules on the multiplexers.

For instance, if there is a loss of connection on the WEST (OPT A)

multiplexing port of a local multiplexer, the links are dropped on the

GBIC modules installed in CH1 to CH4 on the local multiplexer and also

on the GBIC modules installed in CH5 to CH8 on the remote multiplexer,

as shown in the illustration below.

The value of this type of network monitoring and fault notification is that

some hubs and switches can be configured to take a specific action in

the event of the loss of connection on a port. In some cases, the unit can

be configured to seek a redundant path to the disconnected node and

send out a trap to a network management station, and so alert the

network administrator of the problem.

XXXX

LOCAL MULTIPLEXER

CH5 CH6 CH7 CH8

WEST

REMOTE MULTIPLEXER

Failure of fiber cable

WEST

CH1 CH2 CH3 CH4

EAST

Switch

XXXX

CH1 CH2 CH3 CH4

Switch

CH1 CH2 CH3 CH4

EAST

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Allied-telesis AT-S47 Manual do Utilizador Página 61