From: Todd, Douglas M. (DTODD@PARTNERS.ORG)
Date: Fri Apr 06 2007 - 15:15:55 ART
Depends on you setup and what you are trying to a complish. If you need the hub
router to announce routes it learns through the same interface it's advertising
that route, then yes you need to disable it.
The best way to figure this is out in a lab is to test it out. Have a hub and
spoke setup: one setup uses multiple PTP ints, thus no need for split horizons;
the second uses multipoint setup with on network. You will find that the
routes that the hub learns from the remote routers will not be learned by all
the remote routers because of split horizons/poizon reverse etc. If you disable
split horizons then you will see the routers learn all routes adv by the hub.
DMT
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Edouard
Zorrilla
Sent: Friday, April 06, 2007 1:38 PM
To: mariam.tatevik@yahoo.com; ccielab@groupstudy.com
Subject: Re: IP split-horizon
Hello,
But if they are in diferent sub-interfaces, do I need to disable split-horizont
?
Regards
----- Original Message -----
From: <mariam.tatevik@yahoo.com>
To: <ccielab@groupstudy.com>
Sent: Thursday, April 05, 2007 8:07 AM
Subject: Re: IP split-horizon
> 1) you do need to disable split-horizon for EIGRP
> on all multipoints FR interfaces due to TTL
> 2) just "ip split-horizon" is for RIP
>
> HTH
>
>
>
> IP split-horizon huangyinxiao Reply to sender to list
>
> From: huangyinxiao@gmail.com
> To: ccielab@groupstudy.com
> Subject: IP split-horizon
> Date: Thu, 5 Apr 2007 08:49:52 -0400
> Reply-to: huangyinxiao@gmail.com
>
> Hi all,
>
> When configure eigrp on frame-relay link, ip split-horizon should be
> enabled.
> But, I don't know which command should I use. I know there two commands
> can
> enable ip split-horizon. One is "ip split-horizon" and the other is "ip
> split-horizon eigrp 100". So which one should I use. I've tried "ip split
> horizon eigrp 100" on routers, but when I do show run, it does not exist.
>
> Can anyone tell me which one should use?
>
> Thanks
>
> Cheers,
>
>
> Laurence
>
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