ccu licence - F5 apm - Microsoft Exchange

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.