FRTS conversion

From: Roger RPF (rpf@bluemail.ch)
Date: Tue Jul 15 2008 - 07:49:28 ART


Hi group,

I need some confidence in FRTS with an example. I know it is a "hot
discussed" topic and I catched a lot from all the discussions, but I'm still
not 100% certain about "my calculation". Below a task which I tried to solve
with FRTS and CB-Traffic shaping.

The task is: Target transmission rate is 512Kbps but I'm allowed to burst up
to port speed (1.5Mbps = AR = 1536000).

So with FRTS I would do:

map-class frame-relay shape
 frame-relay cir 512000 (target rate)
 frame-relay bc 64000 (CIR/Tc)
 frame-relay be 128000 (Ar/Tc - Bc)

So the same stuff with Class Based shaping:

policy-map shape
 class class-default
  shape peak 512000 64000 128000 (calculation is the same as with FRTS)



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