From: Vincent Mashburn (vmashburn@fedex.com)
Date: Mon Oct 09 2006 - 10:39:29 ART
Be is used in the "shape average" and the "shape peak". The difference
is that "shape peak" sends Bc + Be every interval, whereas "shape
average" only sends Be if there was unused bandwidth in the previous
clock interval (ie all of the Bc was not used).
Vince Mashburn
Voice / Data Engineer
901-263-5072
CCVP, CCNP, CCDA,Network +
Cisco IP Telephony Support Specialist
Cisco IP Telephony Operations Specialist
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
rackrental2006@yahoo.ca
Sent: Sunday, October 08, 2006 6:20 AM
To: ccielab@groupstudy.com
Subject: Re: Re: Shape Average command
It looks that Be is used only in peak rate shaping. Please read
following:
Average rate shaping limits the transmission rate to the CIR. Using the
CIR ensures that the average amount of traffic being sent conforms to
the rate expected by the network.
Peak rate shaping configures the router to send more traffic than the
CIR. To determine the peak rate, the router uses the following formula:
peak rate = CIR(1 + Be / Bc)
where:
Be is the Excess Burst size.
Bc is the Committed Burst size.
Peak rate shaping allows the router to burst higher than average rate
shaping. However, using peak rate shaping, the traffic sent above the
CIR (the delta) could be dropped if the network becomes congested.
Thanks,
Mike
--------------
Affordable way to rent CCIE Lab Equipment www.rack-rental.com
Email: admin@rack-rental.com
This archive was generated by hypermail 2.1.4 : Wed Nov 01 2006 - 07:29:04 ART