[cisco-voip] CUCM and IM&P 10x Upgrade and Parameters

[Josh Warcop]

In the field we're not enumerating all the parameters and checking the differences. It is actually helping to getting a consistent state across the two products.

If Jabber/ASA/XMPP proxy was involved and it was large enterprise 25k plus users multi-cluster I would spend the time. Sub-1000 we don't get into that level detail.

Sent from my Windows Phone
________________________________
From: Anthony Holloway<mailto:avholloway+cisco-voip at gmail.com>
Sent: ‎10/‎28/‎2014 11:14 PM
To: Josh Warcop<mailto:josh at warcop.com>
Cc: Cisco VoIP Group<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] CUCM and IM&P 10x Upgrade and Parameters

Thanks for the feedback Josh.  Unfortunately, I have been down the
path of enumerating
all parameters on CUCM
<http://cisco-voip.markmail.org/search/?q=holloway%20parameters%20sql#query:holloway%20parameters%20sql+page:1+mid:spbnktjt3fkxoguk+state:results>,
and it isn't pretty.  Are you, or engineers you know actually noting the
parameters before and after and furthermore running a diff on the two?  I
cannot believe this is actually happening in the field.  Your comment of
"Generally it is a non issue when dealing with those parameters." is what I
suspect most people are going to say/think/feel about this.

For the record, I am targeting 10.5(1)SU1, but Cisco running true to form,
the latest Upgrade Guide available is for 10.0(1).

Screenshot for reference:

[image: Inline image 1]

On Tue, Oct 28, 2014 at 4:52 PM, Josh Warcop <josh at warcop.com> wrote:

>  First - 10.5 SU1 should be your target release unless you have a
> compelling reason to go to 10.x.
>
> Generally it is a non issue when dealing with those parameters. CUCM
> should by default be the higher priority of enterprise and service
> parameters. When dealing with conflicts most people I have worked with
> choose to retain the CUCM parameters without exception.
>
> Taking note of the parameters isn't a bad thing but like the document says
> it'll be overwritten and you'll have to make the choice after the upgrade
> to change things or not. At that point your changing parameters for the
> whole CUCM cluster and not just IM&P.
>
> Think of IM&P as simply a supplemental service to the cluster and not a
> cluster of its own.
>
> Sent from my Windows Phone
>  ------------------------------
> From: Anthony Holloway <avholloway+cisco-voip at gmail.com>
> Sent: ‎10/‎28/‎2014 3:15 PM
> To: Cisco VoIP Group <cisco-voip at puck.nether.net>
> Subject: [cisco-voip] CUCM and IM&P 10x Upgrade and Parameters
>
>  Upgrade Gurus,
>
>  I am planning an upgrade from a CUCM and CUPS 8x to CUCM and IM&P 10x
> and I came across this passage in the CUCM 10.0(1) Upgrade Guide, and I was
> wondering if anyone has experience to share on this topic?
>
>   With the merging of Cisco Unified Communications Manager and IM and
> Presence Service, enterprise and service parameters are now shared between
> nodes in a cluster. As such, both types of nodes use the same settings for
> enterprise and cluster-wide parameters. You need to be aware that not all
> parameter settings are retained during an upgrade to Release 10.0(1). All
> enterprise parameters and cluster-wide service parameters that are common
> to both Cisco Unified Communications Manager and IM and Presence Service
> retain the value specified on Cisco Unified Communications Manager only,
> with one exception. The User Assignment Mode parameter is the only
> enterprise parameter that is retained during upgrade. Service parameters
> that apply to IM and Presence only are retained after an upgrade.
>
>
>
> Cisco recommends that before you begin an upgrade, you make a note of
> parameter settings and evaluate the best settings for the combined cluster.
> This will allow you to easily configure those settings after the upgrade is
> complete.
>
>
>  *Source: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/upgrade/10_0_1/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100_chapter_010.html#CUP0_RF_P3D1854B_00
> <http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/upgrade/10_0_1/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100_chapter_010.html#CUP0_RF_P3D1854B_00>*
>
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