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Looks like the ultimate root cause for many was:
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<div class="">CSCtb70375 SNMP needs to alert user of DNS connectivity issues <br class="">
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<div class=""><B>Symptom:</B></div>
<div class="">If DNS is not configured or misconfigured the SNMP walk/get operation on that server will fail with time out.</div>
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<div class="">When an application queries CUCM via SNMP and DNS is not configured correctly, it will timeout and not respond as expected. No administrator alert is sent to notify them of this timeout/issue.</div>
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<div class=""><B>Conditions:</B></div>
<div class="">CUCM with misconfigured DNS (or DNS server down/slow to respond)</div>
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<div class=""><B>Workaround:</B></div>
<div class="">Configure a working DNS server</div>
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<div class="">This bug was (C)losed without a fix because it’s primarily a misconfig.</div>
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<div class="">-w</div>
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<div class="">On Jul 20, 2017, at 11:45 AM, Wes Sisk (wsisk) <<a href="mailto:wsisk@cisco.com" class="">wsisk@cisco.com</a>> wrote:</div>
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<div class="">From Syslog, we can see lot of "DBLException" with reason code 746 (on Pub and Sub)</div>
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<div class="">From knowledge database, similar cases of "DBException with reason code 746" have been solved by cluster reboot or Subscriber re-build.</div>
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<div class="">try ‘risdb query…’ commands from CLI on cucm. restart ccm process, or ideally whole cucm server.</div>
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<div class="">-w</div>
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<div class="">On Jul 20, 2017, at 11:32 AM, Matthew Loraditch <<a href="mailto:MLoraditch@heliontechnologies.com" class="">MLoraditch@heliontechnologies.com</a>> wrote:</div>
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We are getting a genErr all of a sudden when trying to do phone refreshes. String is correct and tried using SNMPv3 also.<o:p class=""></o:p></div>
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Have restarted InformaCast and restarted SNMP Agent on UCM.<o:p class=""></o:p></div>
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<o:p class=""> </o:p></div>
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Anything else shy of a reboot followed by a possible TAC Case?<o:p class=""></o:p></div>
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<o:p class=""> </o:p></div>
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Capture shows this:<span class="Apple-converted-space"> </span><o:p class=""></o:p></div>
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<o:p class=""> </o:p></div>
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<span id="cid:image001.png@01D3014A.371691B0" class=""><image001.png></span><o:p class=""></o:p></div>
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<span style="font-size: 10pt; color: rgb(31, 73, 125);" class="">Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA<br class="">
Network Engineer<br class="">
Direct Voice: 443.541.1518</span><span style="color: rgb(31, 73, 125);" class=""><br class="">
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<o:p class=""></o:p></span></div>
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<o:p class=""> </o:p></div>
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