Re: Traffic Shaping question

From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Mon May 24 2004 - 07:43:43 GMT-3


>>I like to think of shaping as what you do not to be policed. With same
>>parameters, a shaped traffic will not be dropped/marked by a policer.
>>In that sense, "save now" is just "have up to Be available for later
>>use", and "spend more now" is "use that saved Be". Same thing...
>>
>
>
> Not true. Unlike traffic shaping, traffic policing has the accumulated debt
> and compounded debt features. The way compounded debt is handled gives
> traffic shaping a RED type behavior when traffic exceeds Bc but not the Be.

I'll give it some thought time :-)
But I still think you always shape not to be policed/dropped. There are
two kinds of policers there: configured ones (in some router/access
switch) and implicit ones (network just dropping your traffic because of
some congestion status, like main/branch framerelay access rate mismatch.

Even though lab may be totally unrealistic, tools/mechs are there to
solve real problems :-)

-- 
Carlos G Mendioroz  <tron@huapi.ba.ar>  LW7 EQI  Argentina


This archive was generated by hypermail 2.1.4 : Wed Jun 02 2004 - 11:12:16 GMT-3