Just to Chime in here….

From what I have seen upgrading in the lab upgrading to 12.5.1.11900-x 
(12.5(1)SU1) from almost anything (even from 12.5.1.10000-22) should be 
considered a major upgrade,
Similar to 8.6 where CUCM went to SELINUX with a new OS install.(especially 
true when coming from 11.x since that OS is still redhat)

https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKUCC-2011.pdf 
<https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKUCC-2011.pdf>

VMware shows CentOS7 is supported on ESXi 6.0.0 but Cisco says you need 6.5/6.7 
(which is true)

11.x is RHEL6, 12.0 is CentOS6, 12.5 is CentOS7 and may involve an ESXi upgrade 
prior to upgrading.

Bottom line, upgrade ESXi to 6.5/6.7 prior to attempting UCOS upgrade to 
12.5(1)SU1 and you cannot do a fresh install of 12.5SU1 but you can upgrade 
from  base 12.5.1:



-Chester


> On Aug 15, 2019, at 1:57 PM, Lelio Fulgenzi <le...@uoguelph.ca> wrote:
> 
> I’m hoping that Webex calling will come out with a “video mesh node” 
> equivalent, so when your WAN link goes down, you have nodes on-premise to 
> service your phones.
>  
> That being said, chances are, that won’t happen. Cisco is going to expect you 
> to have a “Cloud Ready” network with multiple paths, QoS and peering set up.
>  
> I’m guessing may providers will soon have a backup 5G/6G cellular data option 
> available so if that squirrel finally gets through chewing the fibre, you can 
> prioritize voice traffic over the wireless backup link.
>  
>  
>  
> ---
> Lelio Fulgenzi, B.A. | Senior Analyst
> Computing and Communications Services | University of Guelph
> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | N1G 
> 2W1
> 519-824-4120 Ext. 56354 | le...@uoguelph.ca <mailto:le...@uoguelph.ca>
>  
> www.uoguelph.ca/ccs <http://www.uoguelph.ca/ccs> | @UofGCCS on Instagram, 
> Twitter and Facebook
>  
> <image001.png>
>  
> From: Charles Goldsmith <w...@woka.us <mailto:w...@woka.us>> 
> Sent: Thursday, August 15, 2019 1:46 PM
> To: Lelio Fulgenzi <le...@uoguelph.ca <mailto:le...@uoguelph.ca>>
> Cc: Ryan Huff <ryanh...@outlook.com <mailto:ryanh...@outlook.com>>; Anthony 
> Holloway <avholloway+cisco-v...@gmail.com 
> <mailto:avholloway+cisco-v...@gmail.com>>; cisco-voip voyp list 
> <cisco-voip@puck.nether.net <mailto:cisco-voip@puck.nether.net>>
> Subject: Re: [cisco-voip] CUCM SU release cycle
>  
> Cloud is good for some things, IMHO, but not a once size fit all.  As we saw 
> from last year, the cloud is not immune to outages.  Unless you are big 
> enough to get a dedicated circuit, you have QoS issues.
>  
> I have yet to see WxTeams work seamlessly on my mobile, the bug is back where 
> it continues to ring after I answer on elsewhere.
>  
> My cloud connected home phone is rock solid (8865 to WxTeams), aside from the 
> occasional QoS hiccup, but I would get that with any provider, not just Webex.
>  
> Would I advise my bigger customers to switch?  Not yet.  Hybrid calling is 
> good for now and a properly built UCM cluster just can't be beat if you have 
> a well built network, etc.
>  
> On Thu, Aug 15, 2019 at 12:38 PM Lelio Fulgenzi <le...@uoguelph.ca 
> <mailto:le...@uoguelph.ca>> wrote:
>  
> Cisco is paying for clients who get “Cloud or Bust” tattoos.
>  
> That’s a sign of good things to come.
>  
> I’m convinced.
>  
> ---
> Lelio Fulgenzi, B.A. | Senior Analyst
> Computing and Communications Services | University of Guelph
> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | N1G 
> 2W1
> 519-824-4120 Ext. 56354 | le...@uoguelph.ca <mailto:le...@uoguelph.ca>
>  
> www.uoguelph.ca/ccs <http://www.uoguelph.ca/ccs> | @UofGCCS on Instagram, 
> Twitter and Facebook
>  
> <image001.png>
>  
> From: Ryan Huff <ryanh...@outlook.com <mailto:ryanh...@outlook.com>> 
> Sent: Thursday, August 15, 2019 1:31 PM
> To: Lelio Fulgenzi <le...@uoguelph.ca <mailto:le...@uoguelph.ca>>
> Cc: Anthony Holloway <avholloway+cisco-v...@gmail.com 
> <mailto:avholloway%2bcisco-v...@gmail.com>>; Charles Goldsmith <w...@woka.us 
> <mailto:w...@woka.us>>; cisco-voip voyp list <cisco-voip@puck.nether.net 
> <mailto:cisco-voip@puck.nether.net>>
> Subject: Re: [cisco-voip] CUCM SU release cycle
>  
> Let’s not get ahead of ourselves there ;). Just like war, usually (but not 
> always) the people who want 100% cloud calling or think it’s a great idea are 
> the people who’ve never experienced it.. lol
> 
> Sent from my iPhone
>  
> 
> On Aug 15, 2019, at 13:22, Lelio Fulgenzi <le...@uoguelph.ca 
> <mailto:le...@uoguelph.ca>> wrote:
> 
> 
> You forgot how everyone will be migrating to Webex Calling before then. And 
> your upgrade cycle will be out of control. Just like how Webex Teams has that 
> green restart symbol every two weeks.
>  
> ---
> Lelio Fulgenzi, B.A. | Senior Analyst
> Computing and Communications Services | University of Guelph
> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | N1G 
> 2W1
> 519-824-4120 Ext. 56354 | le...@uoguelph.ca <mailto:le...@uoguelph.ca>
>  
> www.uoguelph.ca/ccs 
> <https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C22113f37d40644de57c608d721a523d2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637014865456429669&sdata=Pd10jsjcQBMgJXb1etRx7L0VkkiGRtg%2B06QmkUhomqY%3D&reserved=0>
>  | @UofGCCS on Instagram, Twitter and Facebook
>  
> <image001.png>
>  
> From: Anthony Holloway <avholloway+cisco-v...@gmail.com 
> <mailto:avholloway+cisco-v...@gmail.com>> 
> Sent: Thursday, August 15, 2019 12:05 PM
> To: Lelio Fulgenzi <le...@uoguelph.ca <mailto:le...@uoguelph.ca>>
> Cc: Charles Goldsmith <w...@woka.us <mailto:w...@woka.us>>; cisco-voip voyp 
> list <cisco-voip@puck.nether.net <mailto:cisco-voip@puck.nether.net>>
> Subject: Re: [cisco-voip] CUCM SU release cycle
>  
> So if I do the math...
>  
> No more minor versions
> ...punches some keys...
>  
> And 2 month SU cycles
> ...punches more keys....
>  
> With an upper limit of 3 SUs
> ...punches even more keys...
>  
> That's a new major version every 6 months!
>  
> That means we'll see
> ..key punching intensifies...
>  
> CUCM 69 by mid-2046.  Just in time for me to retire!
>  
> On Thu, Aug 15, 2019 at 10:57 AM Lelio Fulgenzi <le...@uoguelph.ca 
> <mailto:le...@uoguelph.ca>> wrote:
> Pretty sure I remember them saying there likely wouldn’t be that many SU’s 
> either, three at most?
>  
> *sigh*
>  
> ---
> Lelio Fulgenzi, B.A. | Senior Analyst
> Computing and Communications Services | University of Guelph
> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | N1G 
> 2W1
> 519-824-4120 Ext. 56354 | le...@uoguelph.ca <mailto:le...@uoguelph.ca>
>  
> www.uoguelph.ca/ccs 
> <https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C22113f37d40644de57c608d721a523d2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637014865456439678&sdata=nPmXLEtfP23uE8IG5eNiL4ouIBaMQ0a7bU6IrVmF7Xc%3D&reserved=0>
>  | @UofGCCS on Instagram, Twitter and Facebook
>  
> <image001.png>
>  
> From: cisco-voip <cisco-voip-boun...@puck.nether.net 
> <mailto:cisco-voip-boun...@puck.nether.net>> On Behalf Of Anthony Holloway
> Sent: Thursday, August 15, 2019 11:50 AM
> To: Charles Goldsmith <w...@woka.us <mailto:w...@woka.us>>
> Cc: cisco-voip voyp list <cisco-voip@puck.nether.net 
> <mailto:cisco-voip@puck.nether.net>>
> Subject: Re: [cisco-voip] CUCM SU release cycle
>  
> Make it SU5 in memory of the .5 releases.
>  
> On Thu, Aug 15, 2019 at 9:18 AM Charles Goldsmith <w...@woka.us 
> <mailto:w...@woka.us>> wrote:
> I didn't see an announcement, was just told about the change, Cisco doesn't 
> like us waiting for the .5 release to push out to customers.  We all know 
> that the .0 releases have historically been more challenging.
>  
> So now, I plan to wait until at least su2 before upgrading :)
>  
>  
> On Thu, Aug 15, 2019 at 9:15 AM Anthony Holloway 
> <avholloway+cisco-v...@gmail.com <mailto:avholloway%2bcisco-v...@gmail.com>> 
> wrote:
> Why not just all Major versions all the time?  Google Chrome is on version 76.
>  
> But seriously though, anyone got a reference to this announcement?  I didn't 
> see it in the cisco live preso linked earlier.
>  
> If not, what's the reported reason for dropping minor release numbers?
>  
> On Thu, Aug 15, 2019 at 5:40 AM Ryan Huff <ryanh...@outlook.com 
> <mailto:ryanh...@outlook.com>> wrote:
> After 12.5, no more “.5” releases, it’ll just be major versions (and the SUs 
> in between). After 12.5 we skip 13 and go right to 14 (then presumably, 15 
> after that).
> 
> Sent from my iPhone
>  
> 
> On Aug 15, 2019, at 02:05, Anthony Holloway <avholloway+cisco-v...@gmail.com 
> <mailto:avholloway%2bcisco-v...@gmail.com>> wrote:
> 
> 
> What's going on with .5 releases?  I don't think I heard about that.
>  
> On Wed, Aug 14, 2019 at 11:16 PM Charles Goldsmith <w...@woka.us 
> <mailto:w...@woka.us>> wrote:
> Yeah, I think with the move away from the .5 releases, we'll be getting more 
> SU's and less major releases.
>  
> On Wed, Aug 14, 2019 at 10:58 PM Ki Wi <kiwi.vo...@gmail.com 
> <mailto:kiwi.vo...@gmail.com>> wrote:
> Hi Group, 
> in the past , the SU release is every 6 months (usually longer than that, 
> approximately twice a year maximum) but now Cisco is changing to every 2 
> months? 
>  
> Reference : Page 20 of the link 
> https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2019/pdf/PSOCOL-1000.pdf 
> <https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ciscolive.com%2Fc%2Fdam%2Fr%2Fciscolive%2Fus%2Fdocs%2F2019%2Fpdf%2FPSOCOL-1000.pdf&data=02%7C01%7C%7C22113f37d40644de57c608d721a523d2%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637014865456439678&sdata=yeh%2BPcDLDmSl8oD0w3mTIZBpZXMDrDLZWh5YVl9aV4U%3D&reserved=0>
>  
> 
> -- 
> Regards,
> Ki Wi
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