How long is the timeout interval for an online user who does not perform any operations

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The default timeout interval is 5 minutes.
The timeout interval is configurable for routers. To configure the timeout interval, perform the following operations:
Run the idle-timeout minutes [ seconds ] command to configure the timeout interval in the user interface view.
If AAA authentication is configured, run the local-user user-name idle-timeout minutes [ seconds ] in the AAA view to enable disconnection of a local user after you run the idle-timeout command. After the configuration is complete, the system can disconnect the user from the VTY interface when the timeout period expires. You are advised to set the timeout period to 10-15 minutes.

NOTE:
To disable the idle cut function, run the idle-timeout 0 command.
If the idle cut function is disabled for users who log in to the VTY interface, other users may fail to obtain idle connections.

Other related questions:
How long is the timeout interval of the AR router after users log in
By default, the timeout interval of the AR router is 5 minutes. The AR router supports the timeout interval. The procedure is as follows: 1. Run the idle-timeout minutes [ seconds ] command in the user view to set the timeout interval of disconnection. 2. If AAA authentication is configured, you need to run the local-user < user-name > idle-timeout < minutes > [ < seconds > ] command in the AAA view after running the idle-timeout command to enable disconnection of idle users. After the configuration is complete, the system can disconnect the user from the VTY interface when the timeout interval expires. You are advised to set the timeout interval to 10-15 minutes in the user interface. Note: To disable the disconnection function in the user interface, run the idle-timeout 0 command. If the idle disconnection function is not enabled for VTY users, other users may fail to use idle connections.

How do I configure the timeout interval for a user connection on a WLAN device
If a user does not perform any operation after logging in to a WLAN device, the user interface is always occupied, resulting in a waste of resources. In this case, run the idle-timeout minutes [seconds] command in the user interface view. After this command is executed, the system automatically disconnects idle users connected for a long time. You are advised to set the timeout interval to 10�?5 minutes. If AAA authentication is configured and the local-user idle-timeout command is executed in the AAA view to configure the timeout interval of a user disconnection, the timeout interval configured in the AAA view has a higher priority than that configured in the user view. If the timeout interval for a user disconnection is not configured in the AAA view or the undo local-user idle-timeout command is executed, the timeout interval configured in the user view using the idle-timeout command takes effect. For example, set the timeout interval to 1 minute and 30 seconds. system-view [HUAWEI] user-interface console 0 [HUAWEI-ui-console0] idle-timeout 1 30 //By default, a user is disconnected if the user does not perform any operation within 10 minutes.

How to set the connection timeout interval for Telnet users on the switch where AAA is configured
You can specify idle-timeout in the VTY view to set the connection timeout interval for Telnet users. If Authentication, Authorization, and Accounting (AAA) is configured, the configured value of idle-timeout in the VTY view does not take effect. Instead, the value of idle-timeout configured in the AAA view takes effect.

How to configure the timeout interval for VRRP packets
In a VRRP group, if the backup device does not receive VRRP packets from the master device within the timeout interval, it considers that the master device fails, and then become the master.

CE series switches do not support setting of the VRRP protocol packet timeout interval. The VRRP packet timeout interval is calculated as follows: (3*Advertisement_Interval) + Skew_time. Advertisement_Interval is the interval for sending VRRP protocol packets. The default value is 1s. Skew_Time = (256-Priority)/256 , whose value can be 0 or 1. You can run the vrrp vrid timer advertise command to change the interval for sending VRRP protocol packets to adjust the timeout interval.

After the configuration is complete, the TimerConfig field in the command output of the display vrrp verbose command shows the configured interval for sending VRRP protocol packets.
<HUAWEI> display vrrp verbose
Vlanif100 | Virtual Router 1
State             : Master
Virtual IP        : 10.1.1.100
Master IP         : 10.1.1.2
Send VRRP Packet To Subvlan : all
PriorityRun       : 120
PriorityConfig    : 120
MasterPriority    : 120
Preempt           : YES   Delay Time : 20 s   Remain : --
TimerRun          : 2 s
TimerConfig       : 2 s
Auth Type         : MD5   Auth Key : ******
Virtual MAC       : 0000-5e00-0101
Check TTL         : YES
Config Type       : Normal
Track BFD         : atob             Priority Reduced :20
BFD-session State : UP
Create Time       : 2014-10-07 15:43:42
Last Change Time  : 2014-10-07 15:44:03 

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