1-26z If you change the type of RADIUS server, the data stream destined to the original RADIUS serverwill be restored to the default unit.z When a third-party RADIUS is used, you can configure the RADIUS server to standard orextended. When iMC server is used, you must configure the RADIUS server to extended.Setting the Status of RADIUS ServersWhen a primary server fails, the device automatically tries to communicate with the secondary server.When both the primary and secondary servers are available, the device sends request packets to theprimary server.Once the primary server fails, the primary server turns into the state of block, and the device turns tothe secondary server. In this case:z If the secondary server is available, the device triggers the primary server quiet timer. After thequiet timer times out, the status of the primary server is active again and the status of thesecondary server remains the same.z If the secondary server fails, the device restores the status of the primary server to activeimmediately.If the primary server has resumed, the device turns to use the primary server and stops communicatingwith the secondary server. After accounting starts, the communication between the client and thesecondary server remains unchanged.Follow these steps to set the status of RADIUS servers:To do… Use the command… RemarksEnter system view system-view —Create a RADIUS scheme andenter RADIUS scheme viewradius schemeradius-scheme-nameRequiredNot defined by defaultSet the status of the primaryRADIUSauthentication/authorization serverstate primary authentication{ active | block }Set the status of the primaryRADIUS accounting serverstate primary accounting { active| block }Set the status of the secondaryRADIUSauthentication/authorization serverstate secondary authentication{ active | block }Set the status of the secondaryRADIUS accounting serverstate secondary accounting{ active | block }Optionalactive for everyserver configured withIP address in theRADIUS scheme