Problem with CM 5.1

Answered Question
Mar 3rd, 2009
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Hello,

I have only few manually included devices in Campus Manager (auto mode is disabled). Somehow two of the devices disappear from topology services L2 view. I discovered that devices are included in CM but in "Not Managed" state (see att. picture). I'm tried to exclude and include them again but they are still not managed. How can I fix that?

Thanks,

Mladen



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Correct Answer by Joe Clarke about 8 years 3 months ago

Looks like you might have a duplicate sysName. Campus thinks that 10.80.1.133 is actually another device:


2009/03/05 09:10:13 Discovery ani DcrToCampusMap: Device 10.80.1.133 is already known to Campus...


2009/03/05 09:10:13 Discovery ani DcrToCampusMap: exist_dev_displayname:76peST2, new_dev_displayname:76peST1


So Campus thinks that this router is actually 10.80.1.134.


The same is true for 10.80.1.131. Campus thinks it's 76peRI2.


Verify that the hostnames (i.e. sysNames) on these routers are all unique. If they are, and this problem is still occurring, then try removing 76peRI2 and 76peST2 from Campus, and re-add them. See if this goes away.

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Joe Clarke Tue, 03/03/2009 - 10:28
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What type of devices are these? Are they cluster switches?

Joe Clarke Wed, 03/04/2009 - 09:42
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Enable core, corex, framework, and frontend debugging under Campus Manager > Admin > Debugging Options > Data Collection, and run a new Data Collection. Post the ani.log.

Correct Answer
Joe Clarke Thu, 03/05/2009 - 10:21
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Looks like you might have a duplicate sysName. Campus thinks that 10.80.1.133 is actually another device:


2009/03/05 09:10:13 Discovery ani DcrToCampusMap: Device 10.80.1.133 is already known to Campus...


2009/03/05 09:10:13 Discovery ani DcrToCampusMap: exist_dev_displayname:76peST2, new_dev_displayname:76peST1


So Campus thinks that this router is actually 10.80.1.134.


The same is true for 10.80.1.131. Campus thinks it's 76peRI2.


Verify that the hostnames (i.e. sysNames) on these routers are all unique. If they are, and this problem is still occurring, then try removing 76peRI2 and 76peST2 from Campus, and re-add them. See if this goes away.

mladenp Mon, 03/09/2009 - 05:55
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Hello,

Hostnames are unique, so I'd removed 76peRI2 and 76peST2, add them and now is OK.

But how this happens? It works well for two or three months...


Anyway, thanks for your help.

Regards,

Mladen

Joe Clarke Mon, 03/09/2009 - 09:24
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I cannot say for certain. Typically we see this when there is a sysName conflict, but it could also happen due to an IP address duplication issue.

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