dns QPS max and dhcp lease per second max problem

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dns QPS max and dhcp lease per second max problem

Julie Xu

Hi,

 

I have checked the dhcp/dns load issue. And found there is some peak value much higher than avg. for example.

DNS avg 3000, peak 160000.

DHCP avg 500, peak 65000.

 

I believe the peak moment is some sort of attack?

 

Could I get a clue what thing can cause the peak dns/dhcp query? And anyway to stop the peak? Or protect the peak?

 

Any comments will be appreciated

 

Thanks in advance

 

Julie


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