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mawan_revera's avatar
mawan_revera
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May 17, 2019

ccu licence - F5 apm - Microsoft Exchange

Hello i wanted to understand how CCU licences are used when exchange iAPP is deployed . meaning i have a APM+LTM setup and have deployed Exchange 2016 iApp - when  i check for ccu licences - i get the number of connection 
F5-BIGIP-APM-MIB::apmAccessStatCurrentActiveSessions.0 = Gauge32: 1447

but the following document says Exchanges does not use a CCU license.
https://support.f5.com/csp/article/K13267  
can you please clarify 
Thanks 
  • yacine's avatar
    yacine
    Icon for Nimbostratus rankNimbostratus

    Hello,

    to check the number's CCU with this command tmsh show /sys license detail | grep apm_sessions

    to check the number's access session with this command tmsh show /sys license detail | grep apm_access_sessions

  • Hi,

     

    CCU means User Connectivity License (CCU), is when a user is assigned one or more BIG-IP APM resources with tunnel-type access.

     

    You consume a ccu in the followin case:

    • Full Network Access (L3 SSL VPN)
    • Per App VPN
    • App Tunnel
    • Web-based app links on Webtop
    • Citrix Portal Mode (StoreFront/Web Interface)

     

    You don't consume ccu in the folowin case:

    • Microsoft Exchange
    • Outlook Anywhere, ActiveSync, Web Service
    • Microsoft OWA (without a rewrite profile)
    • WebAuth
    • SAML Resource on Webtop
    • Oracle OAM

     

    As long as you use a webtop in your vpe (ressource assign), you consume a CCU license. which is not your case with exchange.

     

    I think there is confusion:

     

    The following command allow you to viewing the number of access licenses using tmsh

    tmsh show /sys license detail | grep apm_access_sessions

     

    The following command allow you to viewing the number CCU licenses using tmsh

    tmsh show /sys license detail | grep apm_access_sessions

     

    What you see in:

    F5-BIGIP-APM-MIB::apmAccessStatCurrentActiveSessions.0 = Gauge32: 1447

     

    is not CCU license but access license (Access sessions). As long as you use the apm in your vs and in any case you consume an "Access sessions" which is different from a CCU license... And depending of your device you are limited, you can see license Access sessions info with this command:

    tmsh show /sys license detail | grep apm_access_sessions

     

    If you check in the following KB you can see a table with CCU Info and Access sessions supported by type.

    https://support.f5.com/csp/article/K15624537

     

    Hope it's clear. keep me in touch

    regards.

    • mawan_revera's avatar
      mawan_revera
      Icon for Altostratus rankAltostratus

      Thanks for the Response -

      and its more clear now - is there a command to check CCU licenses - i am on a virtual platform

      Thanks