Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

rate-limit command brief explanation

Hi,

There is this rate-limit command in our company's router.

rate-limit input access-group 127 1000000 187500 187500 conform-action transmit exceed-action drop

I know that the access-group part refers to an access list

conform action transmit means that packets will be transmitted

exceed-action drop means that if it exceed the values listed packets will be dropped.

 

What i dont understand is the logic behind the numbers 1000000 187500 187500. It would be very helpful if someone could explain it briefly, i am having a hard time understanding the cisco docs regarding this command.

 

thanks.

Everyone's tags (1)
1 REPLY

Hi @seaweeds24,Those numbers

Hi @seaweeds24,

Those numbers are "average rate" "normal burts size" "excess burst size", respectively.

  • Average rate determines the long-term average transmission rate. Traffic that falls into this rate will always conform
  • Normal burst size determines how large traffic bursts can be before some traffic exceeds the rate limit
  • Excess burst size determines how larget traffic bursts can be before ALL traffic exceeds the rate limit. 

Traffic that falls between the Normal Burst size and the Exces Burst size exceeds the rate limit with a probability that increases as the burst size increases.

HTH.

Rgrds,

Martin, IT Specialist

 

 

31
Views
0
Helpful
1
Replies
CreatePlease to create content