User`s manual

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18. no command
This command is used to disable a function or restore a setting to factory
default of the switch.
(config)# no ?
automode Set Auto Negotiation or Auto Detect mode
dot1x Configures 802.1x port-based access control
hostname Sets system's network name
ip Global IP configuration sub commands
lacp Configures LACP status
logging Modifies message logging facilities
mac-address-table Configuration of the address table
management Specifies management IP filter
mirror Configuration of mirror
qos Configuration of QoS
queue Assigns priority queues
radius-server Configures login to RADIUS server
rate-limit Configures rate-limits
snmp-server Modifies SNMP server parameters
sntp Simple Network Time Protocol configuration
spanning-tree Configures spanning tree parameters
storm-control Configures storm control
trunk Configures trunk function
For example,
“mirror” command can enable the mirror function and “no mirror” command
can disable it.
“ip default-gateway 192.168.1.100” will set the IP gateway of the switch to
192.168.1.100, and “no ip default-gateway” will put it to factory default setting
192.168.1.254.
19. prompt command
This command is used to set the prompt word for console.
For example,
(config)# prompt AAA
AAA(config)#
20. qos command
This command is used to enable QoS function of the switch. And “no qos”
can be used to disable it.
The traffic scheduling mode (strict priority - ST or weight round robin - WRR) is
selected in “queue” command. And the weighting of each queue is also set in
“queue” command if WRR is selected.
The other QoS settings on ports are configured in “interface” command.