3Com Router 3000 Ethernet FamilyConfiguration GuideChapter 2 AAA and RADIUS/HWTACACS ProtocolConfiguration3Com Corporation2-36Table 2-44 Set a real-time accounting intervalOperation CommandSet a real-time accounting interval. timer realtime-accounting minutesRestore the default real-time accountinginterval. undo timer realtime-accountingThe interval is in minutes and must be a multiple of 3.The setting of real-time accounting interval somewhat depends on the performance ofthe NAS and the TACACS server: a shorter interval requires higher device performance.You are therefore recommended to adopt a longer interval when there are a largenumber of users (more than 1000, inclusive). The following table recommends the ratioof minutes to the number of users.Table 2-45 Recommended ratio of the interval to the number of usersUser number Real-time accounting interval (in minutes)1 – 99 3100 – 499 6500 – 999 12ƒ1000 ƒ15The real-time accounting interval defaults to 12 minutes.2.4.10 Enabling the Online TACACS User to Change the PasswordPerform the following configuration in user view.Table 2-46 Enable the online TACACS user to change the passwordOperation CommandEnable the online TACACS user tochange the password hwtacacs change-password selfAfter this command is configured, the system guides the TACACS online user throughto change the password. Three chances are available for changing the password.Failure to do so makes the TACACS server quit this operation automatically.This function is only valid for terminal users (including console, AUX, TTY, and VTY)configured with TACACS authentication.
