After you install System Manager, you can change the IP address, hostname, or the general network settings of the machine running System Manager.
When you want to add a secondary System Manager for geographic redundancy, run the changeMgmtIP command from the Session Manager command line to reconfigure and to use the secondary System Manager.
For more information, see Changing the IP address and FQDN in System Manager in Administering Avaya Aura® System Manager.
Use this procedure to make changes to Session Manager and Branch Session Manager after you change the System Manager IP address or FQDN.