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Date:      Wed, 28 Apr 1999 22:58:35 -0400 (EDT)
From:      Chuck Robey <chuckr@picnic.mat.net>
To:        Matthew Dillon <dillon@apollo.backplane.com>
Cc:        Jim Shankland <jas@flyingfox.com>, current@FreeBSD.ORG
Subject:   Re: Our routed - Vern says it's old and buggy.
Message-ID:  <Pine.BSF.4.10.9904282256310.378-100000@picnic.mat.net>
In-Reply-To: <199904281909.MAA08470@apollo.backplane.com>

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On Wed, 28 Apr 1999, Matthew Dillon wrote:

> 
> :couldn't possibly be more open than RIP.
> :
> :> 
> :>     OSPF has been around for a long time.
> :
> :But RIP is older, and was the first routing scheme.
> 
>     Which means.... nothing.  RIP was designed for a time when networks
>     were simple.  It has no multipath capabilities, it can *barely*
>     handle subnet masks, and it figures out when a route is dead by 
>     letting packets loop until their TTL runs out.  Also, propogation of
>     state loads the network in a non linear fashion and breaks down when you
>     have a lot of nodes.  It works, but it isn't fun.

You misunderstand.  I wasn't saying it was good, I said it was first,
which it was.  According to my reading (reading only, I haven't looked
at code) the split horizon with poisoned reverse idea is supposed to let
it learn about dead routes far quicker ... pure distance vector would do
that.  I don't know what's actually in routed yet, and academic books
are often completely out to lunch, I'm finding.

> 
> 					-Matt
> 					Matthew Dillon 
> 					<dillon@backplane.com>
> 

----------------------------+-----------------------------------------------
Chuck Robey                 | Interests include any kind of voice or data 
chuckr@picnic.mat.net       | communications topic, C programming, and Unix.
213 Lakeside Drive Apt T-1  |
Greenbelt, MD 20770         | I run picnic (FreeBSD-current)
(301) 220-2114              | and jaunt (Solaris7).
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