Hi,
This a problem that we encounter for as long as we have been using InterMapper. It has
always been somewhat fuzzy, so we never chased it seriously. Until today...
When we don't want to see some interface, we hide the network it connects to. We
don't delete it, since InterMapper will then make it reappear in some ugly way. When
we need to use the interface again, we select the device and use the 'Show adjacent'
command on it. The problem is that some networks never reappear. OK, using the 'Show
all' command makes them reappear, but... We have some maps with more than 40 devices,
each device having more than 20 interfaces. Most of those interfaces are normally
hidden. If, when one of those hidden interfaces is needed, the 'Show adjacent' command
does not work, using 'Show all' is almost impossible, since it makes a small thousand
networks pop on the screen. So this problem becomes really annoying.
After some testing, I have found the rule governing what makes those networks so shy,
and it is quite simple. If a device has a single interface connected to a network,
'Show adjacent' applied to it correctly makes the network reappear. But, if the same
device has two interfaces connecting it to the same network, this network becomes shy
and will not reappear with 'Show adjacent' applied to the device. Aha. I tried with
three, four, and became tired after nine interfaces. Up that that number, the rule is:
if the device is connected by an even number of interfaces to a given hidden network,
using 'Show adjacent' on the device will not make the network reappear. For an odd
number of interfaces, the network does indeed reappear.
One could ask: why are you connecting more that one interface to a single network ?
Well, we usually don't do it. InterMapper does it all by itself, since its way of
connecting newly discovered interfaces to 'something' is sometimes a bit lunatic. If
it decides to connect a newly discovered interface to an existing hidden network, both
the old and the new interfaces become too shy to ever show again. Until, of course,
Intermapper decides to connect a third interface to that network, but don't wait too
long, because if it adds a fourth one, you are in trouble again, and so on.
Releases and co: we have had problems making network reappear for as long as I can
remember, and we purchased InterMapper in 1997. The problem has been reproduced in
version 4.1.2b4, OSX version.
Does it also happen in other environments ?
Best regards.
--
/AF
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