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Thread: CUCM on VMware

  1. Senior Member
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    #1

    Default CUCM on VMware

    Finally got a hold of CUCM iso(s). I attempted an install to verify the iso.

    Install failed with hardware complaint.

    I'll try again after looking at Cisco's website on required RAM and HDD space.
    Would this solve the issue?

    It works on VMware workstations, correct? I mean from the point of VM, can it tell whether it's VMware workstation or an ESXi? I hope I don't need a whole vCenter server here.

    Thanks.
    Last edited by sendalot; 03-21-2014 at 02:31 AM.
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    #2
    What version are you running? If you are running 9x or higher its gets picky if you don't have the OVA file
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    CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related
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  4. Senior Member JeanM's Avatar
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    #3
    I got CUCM linux based working in VMWare workstation before. What version are you working with, as shodown asked as well?
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    #4
    I got mine running on workstation 10 with 2GB RAM, 80GB Disk space, and I want to say 2 processors with 2 cpu cycles per processor. I'd have to check my work computer to verify that, I didn't bother building it outside of workspace, as it was way too much hassle than I was interested in.
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    #5
    Quote Originally Posted by ande0255 View Post
    I got mine running on workstation 10 with 2GB RAM, 80GB Disk space, and I want to say 2 processors with 2 cpu cycles per processor. I'd have to check my work computer to verify that, I didn't bother building it outside of workspace, as it was way too much hassle than I was interested in.
    Could you verify and let me know? Thank you.
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    #6
    Quote Originally Posted by shodown View Post
    What version are you running? If you are running 9x or higher its gets picky if you don't have the OVA file
    I got 9 and have OVAs as well.
    Thanks.
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  8. Senior Member draught's Avatar
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    #7
    So you're using VMware workstation and version 9 of CUCM? Also what are the hardware settings you have on the VM?
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    #8
    2 GBs of RAM and not much HDD allocation. Would this cause a problem?
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    #9
    I rebuilt the VM and now CUCM installs. But I wonder why "Cisco Unitiy Connection" is under "Not Supported on Current Hardware" list during install?



    Thanks.
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    #10
    if your not under ucs or supported HP or IBM servers's that pop's up
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    CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related
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    #11
    Now I need a NTP server for the CUCM setup to go through.

    Can a IOS device be a NTP server? A Router?

    Thanks.
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    #12
    Yes thats what most of us do.
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    #13
    Quote Originally Posted by shodown View Post
    Yes thats what most of us do.
    Does only certain IOS routers support acting as NTP? I looked up commands and "feature ntp" isn't working.
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  15. Senior Member pitviper's Avatar
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    #14
    "Ntp master" followed by the stratum number is what you are looking for.
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    #15
    Quote Originally Posted by pitviper View Post
    "Ntp master" followed by the stratum number is what you are looking for.
    What's stratum and what is a recommended value for stratum?
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    #16
    Network Time Protocol - Wikipedia, the free encyclopedia


    Depending on what app they have different recommendations for which stratum to choose. Check out the cisco srnd for your version of CUCM
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    #17
    Quote Originally Posted by shodown View Post
    Network Time Protocol - Wikipedia, the free encyclopedia


    Depending on what app they have different recommendations for which stratum to choose. Check out the cisco srnd for your version of CUCM
    I really have no idea. What would be the basic? What's SRND?
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    #18
    SRND

    This is a must read if you are dealing with call manager. It gives you the breakdown the features of the version you are running and countless best practices of how to design your system. Its not perfect, but I always reference it when doing a new design.

    Cisco Unified Communications System 9.0 SRND - Preface [Cisco Unified Communications Manager (CallManager)] - Cisco


    When you are using NTP. The stratum is into reference how accurate the clock is with the lower number being better. Depending on the app you are running it may require a lower version than another app. For example Unity Connection can usually get buy with a higher staturm number than call manager, but you need to check the SRND for your version to find the acceptable range. Regardless you will be making your router the master so it will have a 1 and the other devices will fall in behind.
    Currently Reading

    CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related
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    #19
    Quote Originally Posted by shodown View Post
    SRND

    This is a must read if you are dealing with call manager. It gives you the breakdown the features of the version you are running and countless best practices of how to design your system. Its not perfect, but I always reference it when doing a new design.

    Cisco Unified Communications System 9.0 SRND - Preface [Cisco Unified Communications Manager (CallManager)] - Cisco


    When you are using NTP. The stratum is into reference how accurate the clock is with the lower number being better. Depending on the app you are running it may require a lower version than another app. For example Unity Connection can usually get buy with a higher staturm number than call manager, but you need to check the SRND for your version to find the acceptable range. Regardless you will be making your router the master so it will have a 1 and the other devices will fall in behind.
    Thank you very much for this.
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    #20
    I would need a strartum of 3 or less. Is "ntp master ?" all that's necessary to have the router be a NTP server?

    Seems CUCM can't reach it somehow.

    Hmm.

    Thanks.
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    #21
    Quote Originally Posted by did000 View Post
    The different level of stratum determines how accurate the clock is. Stratum 0 is the most accurate time source - these are atomic clocks, GPS clocks and so on. It is extremely expensive to have such device and there are some security regulations that you will not provide this timesource to third parties in example. Stratum 1 means a computer which is synchronizing its clock each few seconds to Stratum 0. Stratum 2 is synchronizing to Stratum 1 sources and so on. In general - Stratum 3 is almost every host, which has a synchronized clock. One good NTP source is pool.ntp.org - publicly available Stratum 1 and Stratum 2 servers. I'm synchronizing my Lab environment with them.
    If I typed "ntp master 1" on my DHCP IOS router, do I simple type the ip address of the router/gateway on NTP server list during installation?

    Thanks.
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  23. Senior Member sacredboy's Avatar
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    #22
    Guys, a couple of questions pertaining CUCM server.

    1. I don't have one of the servers which are supported by Cisco for CUCM and going to use self-configured workstation. Will it work?
    2. Will this configuration be enough to run CUCM, CUC and CUP: Core-i7 4770, 16GB RAM, 250 HDD?
    3. At the moment I have the folowing scheme:

    screen.jpg

    What subnet should CUCM server be located in?
    Last edited by sacredboy; 04-14-2014 at 08:20 PM.
    Best, sacredboy!
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  24. Senior Member JeanM's Avatar
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    #23
    You may run short of hdd space, throw a 1tb drive in there they are cheap.

    Ram should be enough to run a few machines at once.
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  25. Senior Member sacredboy's Avatar
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    #24
    Quote Originally Posted by JeanM View Post
    You may run short of hdd space, throw a 1tb drive in there they are cheap.

    Ram should be enough to run a few machines at once.
    And going back to a server itself, it's not obligatory to use one of them supported by Cisco, is it?
    Last edited by sacredboy; 04-15-2014 at 11:15 AM.
    Best, sacredboy!
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  26. Senior Member pitviper's Avatar
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    #25
    Quote Originally Posted by sacredboy View Post
    And going back to a server itself, it's not obligatory to use one of them supported by Cisco, is it?
    Server doesn't matter if you are running virtual guests. What hypervisior will you be using?
    Last edited by pitviper; 04-15-2014 at 02:27 PM.
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