CAR and WRED

From: Ahmed Mamoor Amimi (mamoor@xxxxxxxx)
Date: Tue Feb 12 2002 - 16:41:46 GMT-3


   
my thinking about CAR and WRED :

CAR
By CAR u can set normal and max burst then tell if the rate drop from
normal then apply precedence or drop or ATM-CLP or QoS or trasmit.
General assumption:
set min xxx
    max xxx
 if min<flow of packet
 then
     drop or clp or prec or qos or transmit
end

WRED
Use the random-detect command to enable WRED, which randomly discards
packets during congestion based on IP precedence settings
General assumption:
if RED<flow of packet
 then
     {(set precedence 0-7) and (threshold 1-4096)}
  or
       set precedence to rsvp packets

my thinking is that they both are some what same but CAR is more flexible as
it gives u the upper and lower bond of limit
to traffic.

-Mamoor



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