Allied Telesis AT-GS2002 Series, Installation Manual

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AT-GS2002 Series Installation Guide
23
with the fiber optic cabling, the unit would drop the link to the twisted pair
port.
The value to this type of network monitoring and fault notification is that
some devices 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 a disconnected end-node or send
out a trap to a network management station, and so alert the network
administrator of the problem.
Note
MissingLink and Smart MissingLink are disabled when you perform
a link test. Consequently, to ensure that MissingLink or Smart
MissingLink is enabled on the bridging converter during normal
network operations, always set the MODE push button so that the
ML or SML LED is green.
Smart MissingLink
The Smart MissingLink feature performs exactly the same function as
MissingLink with one additional feature. When a link is lost on a port, the
LINK LED of the port which still has a valid connection to its end-node
starts to blink. This allows you to quickly determine which port still has a
valid connection (LINK LED blinking) and which port has lost its
connection (LINK LED off).
For example, if the network twisted pair cable to the 10/100/1000Base-TX
port on the converter were to fail, the LINK LED on the 100Base-FX fiber
optic port will blink, indicating a failed connection on the twisted pair port.
If the failure had started with the fiber optic cabling, the LINK LED on the
twisted pair port would blink.
The value to this type of network monitoring and fault notification is so
that you can quickly see which port has failed and troubleshoot your
network accordingly.