When to use PIR?

From: Gregory Gombas (ggombas@gmail.com)
Date: Tue Sep 04 2007 - 10:54:08 ART

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Hey Folks,

When configuring policing, when is it necessary to use PIR?

From what I understand PIR allows you continuosly send traffic at a
rate above your CIR (as opposed to occasional burst) but if that is
that case, why not just set your CIR to that higher value?

For example, if your CIR is 256k and PIR is 512k, the policer will
allow you to send continously at 512k, correct? If that is the case,
then why not just set your PIR to 512k?

Thanks,
Greg

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