Whew! It looks like we all got different views of the same network from the
small bit of information he gave in the original message. I think if we had
the chance to see the router configs form the beginning, we would have come
to the same answer. And if we took all of our answers, squished them
together and removed the redundancy, we could have written a paragraph that
would completely explain split-horizon in a FR network.
Wow... so much knowledge in such a small group. =)
Jim Healis, CCNP, CCDP
Senior Network Engineer
wine.com
cell: (510) 418-6210
office: (510) 818-7352
-----Original Message-----
From: Kenny Sallee [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 06, 2000 11:20 AM
To: Jim Healis; Scott Livingston; [EMAIL PROTECTED]
Subject: Re: [Fwd: Morning]
Actually -- I thought that in a partial mesh and no sub-if's, you must
disable it. Or the Hub will not advertise to spoke 1 the routes it learned
from spoke 2 - cuz it is configured on the major interface and thus will not
advertise a network it learned on that interface, out that
interface....wew...Got that? Even with a partial mesh and sub-if's, you
still need it enabled.
If the spokes have a PVC between them, then you are fully meshed and should
disable it IF you are not using sub-if's. If using sub-if's - leave it
enabled. Please correct me if wrong.
Kenny
----- Original Message -----
From: "Jim Healis" <[EMAIL PROTECTED]>
To: "Scott Livingston" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, June 06, 2000 10:35 AM
Subject: RE: [Fwd: Morning]
> I think what he was talking about is turning off split horizon if the
spoke
> sites have a PVC defined between them. Split horizon can be left on and
the
> site will know about each other through the hub. In other words: If you
have
> a strict hub and spoke topology then you can leave split horizon turned on
> and the sites will know about each other through the hub. But if you have
a
> fully meshed FR network with a hub and spoke topology then you must turn
off
> split horizon so that each spoke can talk to other spokes without going
> through the hub.
>
> Make sense? =)
>
> Jim Healis, CCNP, CCDP
> Senior Network Engineer
> wine.com
>
> cell: (510) 418-6210
> office: (510) 818-7352
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Scott
> Livingston
> Sent: Tuesday, June 06, 2000 10:16 AM
> To: [EMAIL PROTECTED]
> Subject: [Fwd: Morning]
>
> can someone help out here please? THANKS!
> subject:
> Morning
> Date:
> Tue, 06 Jun 2000 07:50:00 -0500
> From:
> Scott Livinston <[EMAIL PROTECTED]>
> To:
> [EMAIL PROTECTED], Jon Helmer <[EMAIL PROTECTED]>
>
>
>
>
>
> This is reference to Mr. David Wosefer's white paper about Frame Relay..
>
> David,
>
> We are currently running a small F.R. network over here and something
> you wrote contradicted what we currently have in operation.. Currently
> we have a hub and spoke topology, 3 spokes to be exact... we are an IP,
> partial meshed network running subinterfaces and EIGRP.. You mentioned
> in your paper that you need to turn off ip split-horizon on the
> subinterfaces if the spokes are to know about the other spokes
> networks.. Well in our case we don't have ip split horizons turned off
> and the spokes know about all other spokes... How could this be? I had
> my lead engineer look @ this and we both cant figure out this
> discrepancy between what you published and what we are currently running
>
> over here... If you get some time could you please show me where i might
>
> be lost? Thanks for your help!
>
> --------------------------------------------------
> Scott M. Livingston
> Network Engineer (CCNP)
> 12851 Foster
> Overland Park, KS 66213
> 800.888.7535
> 913.402.7844 x1056
> 913.814.7849 Fax
>
> "Make every swing as if it were your last"
> -Gary Schroer
> --------------------------------------------------
>
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