[cisco-voip] 'interesting' EMCC behavior

Erick Wellnitz ewellnitzvoip at gmail.com
Fri Oct 4 16:10:01 EDT 2013


Yes, it is also the primary tftp server.


On Fri, Oct 4, 2013 at 12:57 PM, Ryan Ratliff (rratliff) <rratliff at cisco.com
> wrote:

>  System->Server values don't impact certificates.  They will impact what
> the phone gets in config files so if you aren't using DNS this will be an
> issue.  Is that pub also the TFTP server that is going to show up in the
> mini-config?
>
> -Ryan
>
>  On Oct 4, 2013, at 1:13 PM, Erick Wellnitz <ewellnitzvoip at gmail.com>
> wrote:
>
>  I always forget about doing a packet capture on the phone.
>
> I'm thinking it is cert related because on this one cluster the Publisher
> is set up under servers using it's hostname instead of IP while all the
> others are using IP.
>
> We're going to change this once we get approval then re-export,
> consolidate and import.
>
>
> On Thu, Oct 3, 2013 at 4:49 PM, Brian Meade (brmeade) <brmeade at cisco.com>wrote:
>
>>  Erick,****
>>
>> ** **
>>
>> Can you grab a packet capture from the phone trying to log in?  The
>> packet captures seem to show the EMCC issues very clearly.  You should see
>> after the login, the phone will download its mini-config with the new TFTP
>> server info.  You’ll then see it try to download its ITL from the other
>> cluster.  If you don’t see the phone request anything after that, most
>> likely it didn’t trust the signer of the ITL and it will show the
>> “Extension Mobility is unavailable” error message.****
>>
>> ** **
>>
>> Usually that means you need to do a Re-Export, Consolidate, Import of the
>> certificates.****
>>
>> ** **
>>
>> Brian Meade****
>>
>> ** **
>>
>> *From:* cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] *On
>> Behalf Of *Erick Wellnitz
>> *Sent:* Thursday, October 03, 2013 5:01 PM
>> *To:* Jason Aarons (AM)
>> *Cc:* cisco-voip
>> *Subject:* Re: [cisco-voip] 'interesting' EMCC behavior****
>>
>> ** **
>>
>> That's the odd thing.  All of the traces look like it is successful but
>> the phone (7965) resets, logs the user out and displays a message that
>> extension mobility is not available without an error code.  I get similar
>> behavior on the 8945 but without the message.****
>>
>>  ****
>>
>> I've gon through the EMCC guide a number of times and nothing sticks out
>> as obvious.****
>>
>> ** **
>>
>> On Thu, Oct 3, 2013 at 3:41 PM, Jason Aarons (AM) <
>> jason.aarons at dimensiondata.com> wrote:****
>>
>> I was using 8.6 the first time I setup EMCC to another 8.6 box.****
>>
>>  ****
>>
>> *From:* cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] *On
>> Behalf Of *Anthony Holloway
>> *Sent:* Thursday, October 03, 2013 3:39 PM
>> *To:* Erick Wellnitz
>> *Cc:* cisco-voip
>> *Subject:* Re: [cisco-voip] 'interesting' EMCC behavior****
>>
>>  ****
>>
>>  ****
>>
>> I have one idea.****
>>
>> EMCC does not work very well in 8.5 because you cannot "home" a user to a
>> cluster.  Therefore, if your LDAP integrations are the same for each
>> cluster, it would be impossible to know which cluster the user is homed
>> to.  9.1 on the other hand has this feature on the end user page, and thus
>> overcomes this limitation.****
>>
>>  ****
>>
>> On Thu, Oct 3, 2013 at 1:50 PM, Erick Wellnitz <ewellnitzvoip at gmail.com>
>> wrote:****
>>
>>  I have a strange situation.****
>>
>>  ****
>>
>> 3 Clusters. 2 on 9.1 and the other on 8.5  EMCC works except with users
>> configured on the 8.5 cluster.  The profile logs in then immediately logs
>> out without an error message.****
>>
>>  ****
>>
>> Any ideas would be greatly appreciated!****
>>
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip****
>>
>>   ****
>>
>>
>>
>> itevomcid ****
>>
>> ** **
>>
>
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