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FX LinkLoss, TX LinkLoss, Link Fault Pass-Through, FiberAlert and Far
End Fault
IE-iMcV-MediaLinX TX/SFP modules include the troubleshooting features such as
TXLL, FXLL, LFPT, FA and FEF that help locate
silent failures
on a network. Before
attempting to install the module(s), understand how these features work and react to
a specific network configuration.
Link Integrity
During normal operation, link integrity pulses are transmitted by all point-to-point
Ethernet devices. When an IMC Networks media converter receives valid link pulses,
it knows that the device to which it is connected is up and sending pulses, and that
the copper or fiber cable coming from that device is intact. The appropriate “LNK”
(link) LED is lit to indicate this.
The IMC Networks media converter also sends out link pulses from its copper and
fiber transmitters, but normally has no way of knowing whether the cable to the other
device is intact and the link pulses are reaching the other end. The combination of
FiberAlert and LinkLoss allows this information to be obtained, even when physical
access to a remote device (and its link integrity LED) is not available.
