On a related note, what would be **really** useful is a more ergonomic way of selecting hidden interfaces. One our bigger switches I might have 50 to 100 hidden interfaces, many of them virtual. It is very time consuming and confusing to have to display all hidden interfaces to find the one you want to have displayed when a new service comes on line. If I could pick the interface from a pop up list that would save a lot of time.
Also I never delete interfaces and so I would prefer it if Intermapper didn't even give me this option. This would remove a source of operator error.
At 7:06 AM -0800 11/5/03, [EMAIL PROTECTED] wrote:
X-Sender: [EMAIL PROTECTED] Date: Wed, 5 Nov 2003 11:21:30 +0100 To: [EMAIL PROTECTED] From: "Alain Fontaine (Post master, UCL)" <[EMAIL PROTECTED]> Subject: The interfaces that never reappear Reply-To: "InterMapper Discussion" <[EMAIL PROTECTED]> Sender: <[EMAIL PROTECTED]> List-Subscribe: <mailto:[EMAIL PROTECTED]> List-Digest: <mailto:[EMAIL PROTECTED]> List-Unsubscribe: <mailto:[EMAIL PROTECTED]> X-UBC-Relayed: relayed through mail-relay1.ubc.ca X-UBC-Scanned: SpamAssassin X-Spam-Status: No, hits=-0.2 required=5.0 tests=BAYES_20,FORGED_MUA_EUDORA version=2.55 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) Status: 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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