Somewhat randomly, we get a handful of heartbeat losses, carrier losses and
transmit errors (same number of each). For example, sometime this morning we
got hit with 55 in a short period of time (out of about 3,000,000 transmits
and receives without error). We can easily go for days without seeing any
more. And then we will see another handful. They do not seem to cause any
problems, but still ... Our other three machines never show any of these.

We replaced the MIO card some months ago for a different reason, but it
seemed to have no effect on these occasional glitches. My thought is to
replace the transceiver because we see no other problems anywhere on our
network. The question is, what are my chances of successfully doing this
hot? My head tells me my chances should be really good, especially if I do
it during a relatively quiet period. However, my gut tells me this is too
good to be true. Has anyone out there successfully swapped transceivers hot?

John Burke
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