From: Daniel Berlinski (Daniel.Berlinski@telecom.co.nz)
Date: Wed Nov 16 2005 - 01:18:46 GMT-3
Kumar
IMHO your numbers make a Tc of 50ms (bc/cir *1000) hence you area leaking bytes into the line across 20 intervals in one sec to send 10Meg
If you allow a burst of 125000 bytes, it means that after 20 intervals of 50ms each you will end up sending 125000 bytes(1Mbps) * 20= 20Mbps
To allow a max burst of 1Mbps I think (I could be wrong please someone correct me in this one) you should use a be of 6250 bytes
Cheers
________________________________
From: nobody@groupstudy.com on behalf of Kumar Raja-Q16843
Sent: Wed 16/11/2005 7:11 a.m.
To: ccielab@groupstudy.com
Subject: Question on Qos rate-limiting
Hi Guys,
In rate-limiting , I have this question, a CIR of 10 Mbps with a normal
burst of 500 kbps and a maximum burst of 1 Mbps, the traffic should pass
if the set condition matches if not the packet be dropped.
Interface Ethernet0/0
ip address 10.10.10.1 255.255.255.0
rate-limit input 10000000 62500 125000 conform-action transmit
exceed-action drop
Kindly advice if my configuration is correct, the above solution is
because I was given the normal burst value of 500 kbps, but actually we
don't need this value, if we are given with the CIR and the normal burst
can be calculated as (CIR*1.5/8), when the value of normal burst is
explicitly given, should we use or we still go ahead and calculate the
normal using the formula.
Thanks in advance,
Raja
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