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

[Kent Roberts]

We have a new expressway funness.   Edge side of the cluster all reboot at one time.. every x number of days….

Take the easy ones!

> On Jan 12, 2021, at 10:41 PM, Hunter Fuller via cisco-voip <cisco-voip at puck.nether.net> wrote:
> 
> Whoever said that has clearly never administered Expressway. 
> 
> On Tue, Jan 12, 2021 at 23:25 Anthony Holloway <avholloway+cisco-voip at gmail.com <mailto:avholloway%2Bcisco-voip at gmail.com>> wrote:
> 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 <mailto: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 <mailto:kent at fredf.org>> 
> Sent: Tuesday, January 12, 2021 4:42 PM
> To: Riley, Sean <SRiley at robinsonbradshaw.com <mailto:SRiley at robinsonbradshaw.com>>
> Cc: cisco-voip at puck.nether.net <mailto: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 <mailto: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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> --
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