ZyXEL Communications MSC1000G Series, Руководство пользователя

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Chapter 14 Sys Screens
Management Switch Card User’s Guide
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14.10 Authentication, Authorization and Accounting
Authentication is the process of determining who a user is and validating access to the system. The
system can authenticate users who try to log in based on user accounts configured on the system
itself. The system can also use an external authentication server to authenticate a large number of
users
Authorization is the process of determining what a user is allowed to do. Different user accounts
may have higher or lower privilege levels associated with them. For example, user A may have the
right to create new login accounts on the system but user B cannot. The system can authorize users
based on user accounts configured on the system itself or it can use an external server to authorize
a large number of users.
Accounting is the process of recording what a user is doing. The system can use an external server
to track when users log in, log out, execute commands and so on. Accounting can also record
system related actions such as boot up and shut down times of the system.
The external servers that perform authentication, authorization and accounting functions are known
as AAA servers. The system supports RADIUS (Remote Authentication Dial-In User Service) and
Index This field displays the number of the fan in the list.
fan This field displays the name of the fan.
current This is the fan’s current RPM reading.
high_lmt Use these fields to set the maximum RPM threshold for each sensor.
The maximum RPM for each fan must be within 1000~8000.
low_limit Use these fields to set the minimum RPM threshold for each sensor.
The minimum RPM for each fan must be within 1000~8000.
Memory These fields display when you select the MSC. Use these fields to monitor the system’s
memory usage.
Index This field displays the number of the memory in the list.
memory This field displays the name of the memory.
current This field displays the current percentage of memory utilization.
high_lmt Use this field to set the maximum utilization threshold for the memory.
Packet Buffer These fields display when you select the MSC. Use these fields to monitor the system’s packet
buffer usage.
Index This field displays the number of the packet buffer in the list.
packet buffer This field displays the name of the packet buffer.
current This field displays the current percentage of packet buffer utilization.
high_lmt Use this field to set the maximum utilization threshold for the packet buffer.
Apply Click Apply to save the changes in this screen to the system’s volatile memory. The system
loses these changes if it is turned off or loses power, so use the Config Save link on the
navigation panel and then the Save button to save your changes to the non-volatile memory
when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
Table 309
Sys > Monitor (continued)
LABEL DESCRIPTION