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August Lazarev
August Lazarev

Cisco Cucm 91 Iso Download _HOT_



Supported Versions of VMware vSphere ESXi= 6.7, 7.0 U1Design GuideUpgrade Guide Component &Capacity Point VM Configuration Requirements click to download OVA file for this version




Cisco Cucm 91 Iso Download



Supported Versions of VMware vSphere ESXi= 6.5, 6.7, 7.0 U1 Component &Capacity Point VM Configuration Requirements click to download OVA file for this version vCPU Physical CPU Base Frequency


  • When deployment on a BE6000S server and version is 11.0 or higher, capacity is limited to 150 users/ 300 devices and design must follow BE6000S requirements in www.cisco.com/go/ucsrnd.

UCM cluster nodes require fixed capacity points with fixed-configuration VMs in the Cisco-provided OVA for UCM. For a given capacity point (such as the 10K user VM), the virtual hardware specs represent the minimum for that capacity point. Customers who wish to add additional vCPU and/or additional vRAM beyond this minimum to improve performance may do so, but note the following: vCPU/vRAM increases alone do not increase supported capacity, max density per cluster node or max scale per cluster. Customers seeking capacity increases should migrate all cluster nodes to a higher fixed capacity point as described in the design guide and upgrade guide. All cluster nodes must get the same vCPU/vRAM increase. If mixing capacity points in the same UCM cluster then the scale per cluster and the density per node continue to be limited to that of the lowest capacity point (as described in the design guide). Performance is dependent on many factors including deployment specifics, so vCPU/vRAM increases may or may not improve performance.


  • When deployed on a BE6000S server and version is 10.5(2), capacity is limited to 150 users/ 300 devices and design must follow BE6000S requirements in www.cisco.com/go/ucsrnd.

  • When deployed on other supported servers, use for publishers, subscribers, standalone TFTP, standalone multicast MOH nodes, ELM or PAWS-M.

  • User count based on:

  • 1 device per user

  • 1K phones per VM

  • 4K max phones per cluster

  • 6K max BHCC per VM

  • 24K max BHCC per cluster

  • Your design/results may vary

UCM cluster nodes require fixed capacity points with fixed-configuration VMs in the Cisco-provided OVA for UCM. For a given capacity point (such as the 10K user VM), the virtual hardware specs represent the minimum for that capacity point. Customers who wish to add additional vCPU and/or additional vRAM beyond this minimum to improve performance may do so, but note the following: vCPU/vRAM increases alone do not increase supported capacity, max density per cluster node or max scale per cluster. Customers seeking capacity increases should migrate all cluster nodes to a higher fixed capacity point as described in the design guide and upgrade guide. All cluster nodes must get the same vCPU/vRAM increase. If mixing capacity points in the same UCM cluster then the scale per cluster and the density per node continue to be limited to that of the lowest capacity point (as described in the design guide). Performance is dependent on many factors including deployment specifics, so vCPU/vRAM increases may or may not improve performance.


  • Note: The 2,500 user VM configuration with one vCPU may exhibit performance issues during CPU/IO-intensive operations (such as installs, upgrades, backups and CDR writes, significant usage of CTI), or if your deployment has certain characteristics such as a large quantity of TFTP files. Changing the VM configuration to 2 vCPU is recommended as a prevention strategy. Otherwise, you may deploy with 1 vCPU and be TAC-supported, but note that if the root cause of performance issues is found to be insufficient vCPU, Cisco TAC will ask that you change this to 2vCPU. If your deployment is not experiencing any issues, you are not required to change to 2 vCPU and may remain on 1 vCPU.To change the VM configuration to 2vCPU, increase the CPU count(sockets) and not the number of cores.Use for publishers, subscribers, standalone TFTP, standalone multicast MOH nodes, ELM or PAWS-M.

  • User count based on:

  • 1 device per user

  • 2.5K phones per VM

  • 10K max phones per cluster

  • 15K max BHCC per VM

  • 60K max BHCC per cluster

  • Your design/results may vary

Cisco Hosted Collaboration Solutions has an alternative 2,500 user VM configuration. For more details, see www.cisco.com/c/en/us/support/unified-communications/hosted-collaboration-solution-hcs/tsd-products-support-series-home.html (specifically the OVA Requirements of the Compatibility Matrix for the HCS solution release desired). UCM cluster nodes require fixed capacity points with fixed-configuration VMs in the Cisco-provided OVA for UCM. For a given capacity point (such as the 10K user VM), the virtual hardware specs represent the minimum for that capacity point. Customers who wish to add additional vCPU and/or additional vRAM beyond this minimum to improve performance may do so, but note the following: vCPU/vRAM increases alone do not increase supported capacity, max density per cluster node or max scale per cluster. Customers seeking capacity increases should migrate all cluster nodes to a higher fixed capacity point as described in the design guide and upgrade guide. All cluster nodes must get the same vCPU/vRAM increase. If mixing capacity points in the same UCM cluster then the scale per cluster and the density per node continue to be limited to that of the lowest capacity point (as described in the design guide). Performance is dependent on many factors including deployment specifics, so vCPU/vRAM increases may or may not improve performance.


This section provides the IOPS data for a Cisco Unified Communications Manager system under load. These values are per active VM. Which VMs are active, and how many are active simultaneously, depends on how the CUCM cluster nodes are setup with respect to service activation, redundancy groups, etc. (see www.cisco.com/go/ucsrnd for details).93-98% of total IO is "sequential writes" with an IO block size of 4 kilobytes.Active call processing: As a reference, the following steady state IOPS were observed at various loads (expressed in Busy Hour Call Attempts):10K BHCA produces 35 IOPS25K BHCA produces 50 IOPS50K BHCA produces 100 IOPS100K BHCA produces 150 IOPSSoftware upgrades during business hours generate 800 to 1200 IOPS in addition to steady state IOPS.CDR/CMR via CDR Analysis and Reporting (CAR)CUCM sending CDR/CMR to the external billing server does not incur any additional IOPS.Enabling CAR continuous loading results in around 300 IOPS average on the system.Scheduled uploads are around 250 IOPS for Publisher's VM only.Trace collection is 100 IOPS (occurs on all VMs for which tracing is enabled).Nightly backup (usually Publisher's VM only) is 50 IOPS


sir, thanks to you that i completed the installation of cucm on vmware. I would be obliged if you help me resolve this problem. I have created a cluster consisting of a publisher and a subscriber along with tftp. I have enabled the publisher to act like subscriber to register ip phones and i want the ip phone to be registered on the subscriber by default. But the problem is that they are getting registered on the publisher and not on the subscriber. How can I troubleshoot this?


For instance I upgraded from 12.X to 14SU1, I had to download and install from SFTP the ciscocm.enable-sha512sum-2021-signing-key-v1.0.cop.sgn and the ciscocm.preUpgradeCheck-00029.k4.cop.sha512 files before beginning my upgrade.


There are some pre-upgrade tasks that you will want to do to prepare for the upgrade. Cisco has a pre-upgrade cop file to run for both CUCM and Unity Connection that will tell you if your server is ready for the upgrade. The filename is ciscocm.preUpgradeCheck-00024 and can be found in the Software Downloads section of Cisco's website.


The cop file checks disk space, NTP, Network connectivity, etc. Mostly, there will be disk space issues as this upgrade takes more space than previous upgrades. When that is the case, run the ciscocm.free_common_space_v1.5.cop.sgn file to free up the necessary space. At times, even that does not free up enough space, so it is possible to remove some phone firmware for specific devices that the system is not using to free up a little more space.


RSA keys are used to sign Cisco Unified Communications Manager releases and other updates such as Phone Firmware, Locales, Dialplans, other cop files. This cop can be installed on any UCM or see README for versions needing this cop.ciscocm.version3-keys.cop.sgnand put it in your SFTP Folder and Upload to your CUCM 8.6Fill the SFTP InformationChoose the RSA Key


"@context":"http:\/\/schema.org\/","@id":"https:\/\/networklessons.com\/cisco\/cisco-sd-wan\/cisco-sd-wan-eve-ng-lab-installation#arve-vimeo-57670232663e22552daf1b582545974","type":"VideoObject","embedURL":"https:\/\/player.vimeo.com\/video\/576702326?h=edafea7958&dnt=0&app_id=122963&html5=1&title=0&byline=0&portrait=0&autoplay=0","name":"cisco-sd-wan-eve-ng-installation-4k","thumbnailUrl":"https:\/\/i.vimeocdn.com\/video\/1192977500-2c9f02e7046d7ac8e89bb58d0ce692be5bd07aca522cfcf94d7d4af17dc42784-d_640","uploadDate":"2021-07-19T13:09:04+00:00","author":"NetworkLessons.com","duration":"PT19M7S","description":"There are a number of options to build your own Cisco SD-WAN lab. I believe EVE-NG is your best option at the moment. In this lesson, I'll show you everything you need to do to install EVE-NG and build your own Cisco SD-WAN lab. This includes: Downloading the required Cisco and EVE-NG images. Instal"


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