[cisco-voip] CUCM 8.6 promotion of new pub

[Charles Goldsmith]

TG, you state that you aren't trying to promote a sub, but your subject
line indicates that you are.  When talking about combining certs and TVS
restarts, thats for a migration, moving phones from one cluster to
another.  This is not a way to promote a sub to a pub, which you cannot do.

If you are upgrading while rebuilding a new cluster, that is one thing, but
we don't do this often, and most customers do not ever do this.  What I
mean by this is if you are building a fresh, new cluster with the latest
version and then moving phones to this new setup.

Rebuilding to resolve dial plan best practices or splitting a company are
the only reasons I've seen the need of a migration, but perhaps moving a
group of phones from one cluster to another in a very large deployment
could be a practical use of it.

Pushing new certs down (by combining them) is going to cause some restarts
of phones, plan for that with your outages.  It's really no different than
planned outages around upgrading firmware in prep for a software upgrade,
which causes another round of resets as they re-register with subs.

Good luck and ask your questions, but please clarify your plan and intents.

On Mon, Nov 3, 2014 at 5:53 PM, TG <techguy.ca at gmail.com> wrote:

>  Brian,
> Thanks for your input. It's unfortunate we have to live with it.
> Need to know the significance and purpose of TVS restart on subs, as
> results are seen without doing it as well. Also does that cause another
> reset on the phones?
>
> Ryan,
> Maybe you misunderstood it, it is about bulk cert, and not pub recovery.
> Do you know of a way to stop phones from resetting just by combining the
> cert? We see this being fixed in 9.5 but not everyone is willing to jump to
> 9.5 for this gap. Cisco should consider addressing this on 8.6 and 9.1 as
> well as many customers are using these releases. If your 30k phones have to
> take a hit because of cert combining, then that's a big drawback to this
> whole procedure of cluster replacements.
>
> Thanks,
> TG
>
> On 2014-11-03 4:39 PM, Ryan Ratliff (rratliff) wrote:
>
> I'm not aware of the specifics of the doc bug Brian referenced but the
> original question sounds less like bulk cert import and more like a
> publisher recovery.   Can you provide a bit more details on what you mean
> by "promote a new publisher to existing phones"?
>
>  -Ryan
>
>
>
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