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NNMi/uCMDB Cannot discover Layer2 links

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Wes Kaufmann
Collector

NNMi/uCMDB Cannot discover Layer2 links

I have integrated NNMi 8.12 to uCMDB 8.02. However, I get the following error:

Cannot discover Layer2 links

I see that I have a network topology discovered but nothing is in the layer two view.

 

 

P.S. This trhead has been moevd from Application Perf Mgmt (BAC / BSM) Support and News Forum to CMS and Discovery Support and News Forum. - Hp forum Moderator

8 REPLIES
Alexander Arkhi
Honored Contributor
Solution

Re: NNMi/uCMDB Cannot discover Layer2 links

Please refer to this thread - I explained the possible root cause there and gave the proper JAR which should be placed on the probe to overcome a problem.
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1363528
Wes Kaufmann
Collector

Re: NNMi/uCMDB Cannot discover Layer2 links

The article says that this is fixed in uCMDB 8.02. I am running uCMDB 8.02 so hasn't it been fixed and how can I check the version to confirm? The article didn't have anything attached to it so I have nothing to compare to.
Wes Kaufmann
Collector

Re: NNMi/uCMDB Cannot discover Layer2 links

I did review the nnm_sdk.jar file that you has posted in the thread. When I opened it up it looks like it is mostly dated 2/2/2009. The nnm_sdk.jar file that came with 8.02 is dated 9/8/2008. So the article says it was fixed but I guess not. When I opened up the jars to compare the contents there were some differences noticed with the CRC checksums.

So I copied it over and re-ran. Got different results and still no layer two topology....

<< Progress message, Severity: Error>>
Traceback (innermost last):
File "", line 2, in ?
File "NNM_Integration", line 32, in DiscoveryMain
File "NNM_Integration_Utils", line 917, in mainFunction
File "NNM_Integration_Utils", line 657, in createLayer2Links
File "modeling", line 374, in createCompleteHostOSHByInterfaceList
Exception: getHostKey, Could not find valid mac for host_key
Alexander Arkhi
Honored Contributor

Re: NNMi/uCMDB Cannot discover Layer2 links

I would suggest you to take & install latest DDM Content Pack (currently DDM CP4) which, AFAIK, has this issue addressed.
Wes Kaufmann
Collector

Re: NNMi/uCMDB Cannot discover Layer2 links

Doesn't look like CP4 is released yet.
Andy Wolin
Super Collector

Re: NNMi/uCMDB Cannot discover Layer2 links

I believe I have this same issue. I am also at 8.0.2 CP3. Any idea when CP4 will be available?
Dmitry Shevchen
HPE Expert

Re: NNMi/uCMDB Cannot discover Layer2 links

CP4 is already available and can be downloaded from the new DDM Community portal that is now customer-facing and not only HP internal:

https://h20090.www2.hp.com/
Wes Kaufmann
Collector

Re: NNMi/uCMDB Cannot discover Layer2 links

Adding the updated jar files and content pack 4 fixed my NNMi integration problems.
//Add this to "OnDomLoad" event