Newsgroups: comp.dcom.sys.cisco
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From: rene@geveke.nl (Rene van der Hauw)
Subject: Router Discovery Protocol
Message-ID: <9106232103.AA14034@geveke.nl>
Sender: news@colorado.edu
Organization: University of Colorado, Boulder
Date: 23 Jun 91 23:03:22 +0200
Return-Path: <cisco-request@spot.Colorado.EDU>
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Dear people of the internet / people of cisco

At the Technical conference in Stockholm/Helsinki, cisco explained the way
the Router Discovery Protocol was implemented in the Terminal Server.
Good Job!
I haven't worked before with this protocol, so I was supprised that this
protocol was using the mtu. It was used to find the lowest mtu value. 
The only way to find this value, is by going through the entire network
until the final network is reached.
Is this also necessary when using cisco routers?

When looking at IGRP, cisco is sending the mtu already with there routing data.
So why hitting everytime a router before knowing the lowest mtu?
Isn't it possible to supply this information when the packet is hitting the
first cisco router, because the data is already in the routing table!
By doing this, you will see less data going through your entire network, this
can be important when looking at large WAN's with small bandwidth. And it will
be more important if more vendors are going to use this protocol!!!

This could another good reason to use IGRP!!!!

Looking forward reply.

Rene van der Hauw
Geveke electronics
The Netherlands
+31 20 5675558

