Ip Expert lab 20 - FRTS

From: Timothy Snow (timsnow@cogeco.ca)
Date: Thu Jul 17 2003 - 21:50:06 GMT-3


The question states " configure r4 to invoke traffic-shaping whenever
BECNS are detected. The average rate on r4 is 32k bits/second. The min
rate is 8k. the port speed is 64,000 bits/sec"

This is how I configured it.

map-class frame-relay frts
 frame-relay cir 32000
 frame-relay be 4000
 frame-relay mincir 8000
 frame-relay adaptive-shaping becn

which with those variables would get me this

r4#sh traffic-shape s0

Interface Se0
       Access Target Byte Sustain Excess Interval Increment
Adapt
VC List Rate Limit bits/int bits/int (ms) (bytes)
Active
405 32000 1000 4000 4000 125 500
BECN
406 32000 1000 4000 4000 125 500
BECN
401 32000 1000 4000 4000 125 500
BECN

Whereas the solution had the following....

map-class frame-relay throttle
frame-relay cir 32000
frame-relay mincir 8000
frame-relay adaptive-shaping becn

which would result in this

r4#sh traffic-shape s0

Interface Se0
       Access Target Byte Sustain Excess Interval Increment
Adapt
VC List Rate Limit bits/int bits/int (ms) (bytes)
Active
405 56000 875 7000 0 125 875 -

406 56000 875 7000 0 125 875 -

401 56000 875 7000 0 125 875 -

r4#

Did I misread the question? Maybe I over configured it and should have
just used the variables they wanted?

Tim



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