Let’s just hope there’s not a compatibility mismatch with respect to the CUCM 
version you’re running and the target ESXi version.

A lot of us (have to) wait for a few versions to pass before committing to CUCM 
upgrades. Sounds like step/bridge upgrades are in our future once again. 😊

Let’s hope the move to CentOS wasn’t _just_ an accounting decision. Maybe with 
direct access to modify the kernel and underlying libraries, we can see a bit 
more of a long term solution without having to update too frequently.

---
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

[University of Guelph Cornerstone with Improve Life tagline]

From: Chester Rieman <crie...@gmail.com>
Sent: Wednesday, August 21, 2019 11:45 AM
To: cisco-voip (cisco-voip@puck.nether.net) <cisco-voip@puck.nether.net>
Cc: Charles Goldsmith <w...@woka.us>; Lelio Fulgenzi <le...@uoguelph.ca>
Subject: Re: [cisco-voip] CUCM SU release cycle

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

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:

[cid:image002.png@01D55817.030CCBC0]

-Chester



On Aug 15, 2019, at 1:57 PM, Lelio Fulgenzi 
<le...@uoguelph.ca<mailto: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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