Re: EIGRP Basic DUAL rule

From: Anantha Subramanian Natarajan <anantha.natarajan_at_gravitant.com>
Date: Sat, 22 Aug 2009 19:04:39 -0500

Hi All,

  I am able to understand the delay infinity value.It seems that vector
metric value of set to -1(minus 1) is infinity.Kinldy clarify the other
part of the questions.

  Thank You

Regards
Anantha Subramanian Natarajan

On Sat, Aug 22, 2009 at 6:45 PM, Anantha Subramanian Natarajan <
anantha.natarajan_at_gravitant.com> wrote:

> Hi All,
>
> I was going though the "EIGRP Network Design solutions" and have couple
> of questions based on the below lines.Kindly help me to understand the same.
>
>
> *Basic DUAL Rules*
> *
>
> 1) Whenever a router chooses a new successor,it informs all its other
> neighbors about the new reported distance
>
> 2) Every time a router selects a successor,it sends a poison update to
> its successor(poison reverse)
>
> 3) A poison update is sent to all neighbors on the interface through
> which the successor is reachable unless split-horizon is turned off,in which
> case,it's sent to only the successor
>
> I am understanding that a posion update is a regular update with delay set
> to infinity.What is that infinity value,is it the maximum delay value which
> can be set on an interface (16777215 tens of microseconds)? .If that is the
> case,why not the other parameters like bandwith is not set to maximum value
> in the posion update.
>
> Also I am trying to undertstand,point 3 above,is the posion update depends
> on the split-horizon enabled on the interface.
>
> Kindly clarify the above.Thanks for the assistance.
>
>
>
> Regards
>
> Anantha Subramanian Natarajan
>
>
>
>
> *
>
> **

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Received on Sat Aug 22 2009 - 19:04:39 ART

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