Re: [cisco-voip] [External] Re: Migration from CUCM/UCXN/UCCX 8.5 to 12.5

[James B]

The argument used to be that using an FQDN made you dependent on DNS. Then, someone realized that all the other stuff customers care about relies on DNS, so maybe that was OK. And certificates of course.   FQDN all the way!       From: Hunter Fuller Sent: 28 May 2020 19:35 To: James B Cc: Anthony Holloway; Matthew Loraditch; cisco-voip@puck.nether.net Subject: Re: [External] Re: [cisco-voip] Migration from CUCM/UCXN/UCCX 8.5 to 12.5   I swear, really, that I'm not trying to stir anything up here.   But is there any reason to turn up a new cluster with IPs?? You have to use FQDNs for at least some stuff (Jabber and web portal related stuff in particular)...   I promise I'm not trying to start something. -- Hunter Fuller (they) Router Jockey VBH Annex B-5 +1 256 824 5331 Office of Information Technology The University of Alabama in Huntsville Network Engineering     On Thu, May 28, 2020 at 1:28 PM James B <james.buchan...@gmail.com> wrote: I was thinking of the community configuration approach Anthony suggested and was thinking of the debates we’d have if we did that:   Do you use “_PT”, “PT_”, or just the site name? Same for “CSS”, “LOC”, and the ever-debated “RGN” or “REG”?. FQDN or IP addresses? Do all the media resources go into a single MRG or not? Do we click “Run on all Nodes” for route lists and trunks or not? MGCP, SIP, or H323 (if using PRIs)? Can UCCX have upper-case hostnames or not?   The debates would take us so long, version 14.0 would be out, and then we’d have to debate about whether a “.0” versoin is stable or not or should we wait for “.5”? Still, could be fun!       From: Anthony Holloway Sent: 28 May 2020 19:15 To: Matthew Loraditch Cc: cisco-voip@puck.nether.net Subject: Re: [cisco-voip] Migration from CUCM/UCXN/UCCX 8.5 to 12.5   Keep in mind that PCD network migrations, while awesome for CUCM, do not work for other products.   Typically with a project like this, you'll likely have a different approach for each app, and not a one size fits all solution.   With the app upgrades, you will also have to change OVA sizes (or want to in some cases), and at that point, it might be better to install fresh, and use tools like COBRAS, BAT, AXL, ADMIN API, stare & compare, etc. to get data exported/imported from old to new.   Or like Kent said, tell yourself it's a toshiba system, and treat it like a greenfield.   On Thu, May 28, 2020 at 11:26 AM Matthew Loraditch <mloradi...@heliontechnologies.com> wrote: Here’s a fun one. We have taken over support of these ancient servers hosted on Esxi 4.1 on UCS-C200-M2s!   Exact Versions are: 8.5 SU2 for CUCM/UCXN 8.5 FCS for UCCX   Each  is a pair of servers.   Have new M5s and flex licensing… need to get to 12.5..  8.5 docs are dead for CUCM/UCXN and 8 and 9 docs are dead for UCCX. ISOs I may need are not available publicly.   Also fun wrinkle the new host are across the WAN and for many logistical reasons are staying there. The migration to the new hosts will have to be via DRS or maybe PCD somehow? Not sure if the bandwidth available to get data across will be fast enough to finish in the allotted time period. My plan was a change freeze window and copy/restore the backups and then activate the new servers and move the subnet to the new location.   As best I can tell I need to get UCCX to SU4 of 8.5.1 then I can go to 10.6 SU3 and then to 12x (with the fun of two CAD upgrades and then a migration to Finesse!)   For CUCM/UCXN I need to go to 8.6 anything and then I can go to 11.5 and then to 12x   I think my plan is to do the upgrades to the interim versions on the old hosts then migrate to the new and then finish the upgrades. The old hosts will need ESXi upgrades to an interim version.   Anyone have thoughts on what they would do here? This is partially depending on TAC being able to provide me the ISOs I will need, but I presume there is an archive.   In theory some sort of PCD migration is also an option, but I’ve never done one and not sure how it could handle the subnet situation that will have to exist.   Welcome to my fun life!                             Matthew Loraditch​ Sr. Network Engineer p: 443.541.1518 w: www.heliontechnologies.com  |  e: mloradi...@heliontechnologies.com _______________________________________________ cisco-voip mailing list cisco-voip@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-voip   _______________________________________________ cisco-voip mailing list cisco-voip@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-voip

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