[cisco-voip] CUCM call set up issue after migration

[Anthony Holloway]

Nice! That was easy.  This email chain goes into my folder called: When
Someone Says Only Windows Servers Need Reboots.

On Tue, Jan 12, 2021 at 7:40 PM Riley, Sean <SRiley at robinsonbradshaw.com>
wrote:

> So far it seems the reboot resolved this problem.  Thanks for all the
> replies with guidance and help.
>
>
>
> *From:* Kent Roberts <kent at fredf.org>
> *Sent:* Tuesday, January 12, 2021 4:42 PM
> *To:* Riley, Sean <SRiley at robinsonbradshaw.com>
> *Cc:* cisco-voip at puck.nether.net
> *Subject:* Re: [cisco-voip] CUCM call set up issue after migration
>
>
>
> 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
>
>
>
> Kent
>
>
>
> On Jan 12, 2021, at 14:06, Riley, Sean <SRiley at robinsonbradshaw.com>
> wrote:
>
> 
>
> 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.
>
>
>
> Node configuration:
>
>
>
> DC A
>
> CM1: Pub which was re-ip’d
>
> CM2: Sub which was re-ip’d
>
>
>
> DC B:
>
> CM3: Sub at remote site that was not changed
>
>
>
> Phones are at many sites, but issue is independent of the phone type,
> phone location or subnet.  Also, Expressway phones have the same issue.
>
>
>
> 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.
>
>
>
> If the phones are both registered to CM3, they can call each other, but
> not phones registered to CM1 or CM2.
>
>
>
> 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.
>
>
>
> Anyone able to point me in the right direction to figure this out?
>
>
>
> Thanks.
>
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