https://community.cisco.com/t5/network-access-control/acs-2-different-versions-on-the-same-distributed-system/m-p/3750492#M25066 <P>Hi,</P> <P>Does anyone know whether we can join 2 different versions on the same distributed system.</P> <P>I have 5.4 and 5.6 and 5.8 version on secondary server and there are some difficulties upgrading 5.4 to 5.8.</P> <P>Is there any issue?</P> Wed, 21 Nov 2018 06:36:08 GMT withool000 2018-11-21T06:36:08Z https://community.cisco.com/t5/network-access-control/acs-2-different-versions-on-the-same-distributed-system/m-p/3750492#M25066 <P>Hi,</P> <P>Does anyone know whether we can join 2 different versions on the same distributed system.</P> <P>I have 5.4 and 5.6 and 5.8 version on secondary server and there are some difficulties upgrading 5.4 to 5.8.</P> <P>Is there any issue?</P> Wed, 21 Nov 2018 06:36:08 GMT https://community.cisco.com/t5/network-access-control/acs-2-different-versions-on-the-same-distributed-system/m-p/3750492#M25066 withool000 2018-11-21T06:36:08Z https://community.cisco.com/t5/network-access-control/acs-2-different-versions-on-the-same-distributed-system/m-p/3750495#M25067 <P>I do not believe it going to support that way, you need to have same version across network 1+20 (version 5.8 max supports).</P> <P>&nbsp;</P> <P>what is the issue you having with upgrade from 5.4 to 5.8.</P> <P>&nbsp;</P> <P>have you looked at the path of upgrade :</P> <P>&nbsp;</P> <P><A href="https://www.cisco.com/c/en/us/td/docs/net_mgmt/cisco_secure_access_control_system/5-8/installation/guide/csacs_book/csacs_upg.html" target="_blank">https://www.cisco.com/c/en/us/td/docs/net_mgmt/cisco_secure_access_control_system/5-8/installation/guide/csacs_book/csacs_upg.html</A></P> <P>&nbsp;</P> Wed, 21 Nov 2018 06:45:36 GMT https://community.cisco.com/t5/network-access-control/acs-2-different-versions-on-the-same-distributed-system/m-p/3750495#M25067 balaji.bandi 2018-11-21T06:45:36Z