[j-nsp] How to calculate "burst-size-limit" in JUNOS Firewall Policer

[Arun Kumar]

Hi,

Thanks for your answers.

thanks
Arun



On Thu, Mar 8, 2012 at 7:08 PM, Ogiboski, Robson (NSN - BR/Curitiba) <
robson.ogiboski at nsn.com> wrote:

> See JNCIA guide pag 456.
>
> Setting the burst-size-limit
> The Juniper Networks Technical Assistance Center (JTAC) suggests setting
> the burst-sizelimit
> equal to the amount of traffic forwarded by the interface in 5
> milliseconds. Let's look at
> an example.
> Suppose you have a Gigabit Ethernet interface in your router. The
> interface can receive 1000
> megabits per second. The burst-size-limit is entered in bytes per
> second, so we translate
> 1000Mbps into 125MBps. That further translates into 125,000KBps and
> finally 125,000,000Bps.
> In a single millisecond, the interface receives 125,000 bytes, so a
> total of 625,000 bytes are
> received in 5 milliseconds. The policer statement becomes
> burst-size-limit 625000.
>
> Robson
>
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
>