*MQC * Bc = CIR/8 x .25
Be = Bc, if not mentioned *Rate-limiting * Bc = CIR/8 x 1.5 Be = 2Bc, if not mentioned Better to memorize this With regards Kings CCNA,CCSP,CCNP,CCIP,CCIE #35914 (Security) On Tue, Jul 31, 2012 at 4:03 AM, Eugene Pefti <[email protected]>wrote: > Thanks, Karthik,**** > > The rate that I found in a solution (it was Lab 16, task 6.3) is set to > 1000. And apparently it is a minimal option that IOS knows about.**** > > It has always been a big confusion for me with Bc and Be values for > different scenario.**** > > My notes that I compiled a while ago show different values.**** > > ** ** > > For MQC single rate-policing Bc = (CIR/8) * 0.25, Be = (CIR/8) * 0.3**** > > If it is not mentioned than Bc=Be.**** > > ** ** > > Alternatively we do CAR rate-limiting Bc=(CIR/8)*1.5, Be=2Bc.**** > > I don’t think that we have to memorize these calculations at all otherwise > it would be crazy. I rely on the task saying something**** > > “ensure the burst size is large enough to accommodate normal and excess > burst durations of 200 ms and 300 ms at a rate of 128 Kbps”**** > > ** ** > > Eugene**** > > ** ** > > *From:* Karthik sagar [mailto:[email protected]] > *Sent:* Monday, July 30, 2012 3:09 AM > *To:* Eugene Pefti > *Cc:* [email protected] > *Subject:* Re: [OSL | CCIE_Security] Police options for rate limiting**** > > ** ** > > police <> and police cir <> commands do the same thing. Infact, the IOS > adds the cir keyword when I enter police <> commands. > > police rate <> commands are used for control-plane policing > > http://www.cisco.com/en/US/partner/docs/ios-xml/ios/qos/command/N_through_P.html#GUID-EBA1A14B-8D5F-4A87-9484-58AFF6C9920C > > And for MQC single-rate policing, i think the Bc should be (CIR/8)*0.25, > Be=Bc > > Regards, > Karthik**** > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
