Traffic limiter question


#1

I have a customer connected to a Gbe interface with an inbound limiter configured as shown below.

They are asking what the policing window duration is. Anyone know?

[quote]traffic-policy {
limiter eth1-vif-200-in {
default {
bandwidth 100mbit
}
}
}[/quote]


#2

Hi,
they are asking you about burst-size. Default is 15kB. For your limiter I would reccomend something like 768k (6ms).

burst-size(B) = bandwidth (bps) X burst-period (s) / 8

15k = 1G * 0.00012 / 8

Window duration is: 120 us at line rate.

Good explanation is here - http://www.juniper.net/techpubs/en_US/junos13.2/topics/concept/policer-mx-m120-m320-burstsize-determining.html


#3

Thanks, great explanation!