Qtech QSW-3200-24T [122/146] Configure cpu busy or unbusy threshold

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by default, CPU alarm enables.

For example:

! Enable CPU alarm

QTECH(config)#alarm cpu

14.8.4 Configure CPU busy or unbusy threshold

Use alarm cpu threshold command in global configuration mode to configure CPU busy or

unbusy threshold.:

 Configure CPU busy or unbusy threshold

alarm cpu threshold [ busy busy ] [ unbusy unbusy ]

busy > unbusy. Default CPU busy threshold is 90%, and CPU unbusy threshold is 60%.

For example:

! Configure CPU busy threshold to be 30%, and CPU unbusy threshold to be 10%

QTECH(config)#alarm cpu threshold busy 30 unbusy 10

14.8.5 Display CPU alarm information

 Use show alarm cpu command in any mode to display cpu alarm information:

show alarm cpu

For example:

! Display CPU alarm information

QTECH(config)#show alarm cpu

CPU status alarm: enable

CPU busy threshold(%): 90

CPU unbusy threshold(%): 60

CPU status: unb

14.9 Anti-DOS Attack

14.9.1 IP segment anti-attack

The IP segment packet number which can be received by system do not occupy resources of

all receiving packets, which can normally handle other non-segment packets when receiving IP

segment attack and the range of IP segment receiving number can be configured. 0 means

system will not handle IP segment packet so that system can avoid the influence on segment

attack.

 Configure it in global configuration mode

anti-dos ip fragment maxnum

 Display related information

show anti-dos