From: Dennis Dumont (dfdumont@yahoo.com)
Date: Tue May 06 2003 - 02:05:09 GMT-3
<snip>
> the max thruput
> over time can never exceed
> the Cisco CIR!!!!
Which is why you set the CIR parameter to the far end
AR. The MINCIR is set to the (CIR) purchased from the
telco. Don't you love semantics.
<more snipage>
> You will never get a 64K throughput in the example
> below. You have a CIR of
> 32K and therefore your throughput will be very close
> to 32K.
Yes exactly, so you won't flood the far end. Now if
you took the tact of declaring subinterfaces for each
your PVC's, you can apply a different map to each
remote, or gather together the like remotes into a
single multipoint subnterface and apply only as many
map-classes as you have types of remote nodes.
> Is the Burst Rate (ie, can burst to 64kbps)
> calculated over the Tc1 or over
> the entire 1 second?
All calculations are done in a Tcl. Most of the
parameters refer to a full second - thus the
confusion. I refer you to varios WAN switch
documents, start here...
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/index.htm
Let us all keep in mind that there are no true frame
switches - with the possible exception of the
router-become-frame-switch used in labs. All
real-world frame-relay is just between the customer
premise, and the ATM switch that happens to have
Frame-relay service ports. Thus all the CIR, MINCIR,
Bc, Be actaully gets mapped to SCR, PCR, CIR and
(typically) VBR-nrt COS.
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