<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"><meta http-equiv="content-type" content="text/html; charset=utf-8">Ah split brains. Gotta love it. Did you restart the ones that did not move? I have seen this when things go stupid. The sync usually isn’t the problem it’s the real-time communication between the nodes that’s all messed up. Usually can fix with a node reboot or restarting the cucm and cti services. Course their maybe more to it but if things are in sync should not be hard to fix<br><br><div dir="ltr"><div><br></div>Kent</div><div dir="ltr"><br><blockquote type="cite">On Jan 12, 2021, at 14:06, Riley, Sean <SRiley@robinsonbradshaw.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">This past weekend we migrated 2 CUCM servers to a new datacenter. This involved changing the IP address on these 2 CUCM nodes. These 2 nodes consist of the Publisher
and 1 Subscriber. We have another Sub at a remote datacenter that was not touched this past weekend.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Node configuration:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">DC A<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">CM1: Pub which was re-ip’d<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">CM2: Sub which was re-ip’d<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">DC B:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">CM3: Sub at remote site that was not changed<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Phones are at many sites, but issue is independent of the phone type, phone location or subnet. Also, Expressway phones have the same issue.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">The issue is any phone that is registered to CM3 cannot call phones registered to CM1 or CM2 and vice versa. The phones do not see the call coming in. If SNR is
configured, the call will ring to the remote destination. Phones registered to CM3 can make outbound PSTN calls without issue, but not receive inbound from PSTN (probably because the gateway is handing off to CM1 or CM2). While the gateways are not unique
to the issue, they are running H323.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">If the phones are both registered to CM3, they can call each other, but not phones registered to CM1 or CM2.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">I have had my network team verify there is not anything they can see in the network causing this behavior. Database replication checks out OK and I can ping from/to
each node.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Anyone able to point me in the right direction to figure this out?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Thanks.<o:p></o:p></span></p>
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