Look at all those routing technologies - they are all different; except
*that* one, it's the same...
Z
>From: "Howard C. Berkowitz" <[EMAIL PROTECTED]>
>Reply-To: "Howard C. Berkowitz" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: EIGRP clarification
>Date: Wed, 28 Mar 2001 23:19:21 -0500
>
> > Preparing for my BSCN exam, I have found myself unclear as to whether
>or
> >not EIGRP is in fact a Hybrid or Distance-Vector protocol. All the Cisco
> >classes I've been too have always referred to EIGRP as a Balanced Hybrid
> >protocol, now studying for my CCNP, I am finding EIGRP referred to as a
> >Distance-vector protocol???...How is this possible? Thanks...
>
>
> From a technical standpoint, EIGRP is emphatically distance vector.
> From a marketing standpoint, Cisco has called it "hybrid," which has
>no accepted technical meaning. Training and certification have picked
>up that terminology.
>
>"Hybrid" is an attempt to differentiate EIGRP, and its DUAL
>algorithm, from the problems of first and second generation DV
>protocols. JJ Garcia-Luna-Aceves, the inventor of DUAL, always has
>called it an advanced DV protocol, and he continues to work on even
>more advanced DV.
>
>There's nothing inherently wrong with DV. EIGRP legitimately has
>fixed some of the problems of earlier DV protocols, such as the lack
>of a hello subprotocol and reliable update mechanism. Without these
>mechanisms, periodic update becomes necessary, and the protocol can't
>be loop-free.
>
>Calling something "hybrid" is about as sensible as saying "route bad,
>switch good," or "all animals are equal, but some are more equal than
>others."
>
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