From: Jaroslaw Zak (jaroslawz@hotmail.com)
Date: Thu Oct 24 2002 - 10:56:10 GMT-3
Angelo,
I think youre missing the point here. Split horizon rule says: "routing
update received on interface will not be further sent via the same
interface". Means if you break your LAN segment into 2 separate subnets A
and B behind routers r2, r3 respectively, r2 will have to hear about subnet
B from r1's multipoint subinterface.
Thats where updates will be suppressed with split horizon enabled, couse r1
would have to receive and send update about A via the same intf.
HTH
Jarek
>From: Angelo De Guzman <ghie_pogi@yahoo.com>
>Reply-To: Angelo De Guzman <ghie_pogi@yahoo.com>
>To: aansar@sscomp.com.sg
>CC: ccielab@groupstudy.com, nobody@groupstudy.com
>Subject: Re: ip split-horizon eigrp
>Date: Thu, 24 Oct 2002 00:15:26 -0700 (PDT)
>
>Hi,
> If R2 and R3 are not directly connected via
>ethernet.
>How can split-horizon be an issue? Of course you will
>have a different ethernet network on R2 and R3.
>Ciao,
>Angelo
>
>--- aansar@sscomp.com.sg wrote:
> > here R2 and R3 also connected , so you dont have
> > spilt horizon problem
> > consider if R2 and R3 is not connected , then spilt
> > horizon comes in to
> > picture then u have to disable spilt horizon in the
> > hub multi point
> > interface
> >
> >
> >
> >
> >
> > Angelo De Guzman <ghie_pogi@yahoo.com>
> > Sent by: nobody@groupstudy.com
> > 10/24/2002 02:18 PM
> > Please respond to Angelo De Guzman
> >
> >
> > To: ccielab@groupstudy.com
> > cc:
> > Subject: ip split-horizon eigrp
> >
> >
> > Hi,
> > R2 -|
> > / |
> > R1 |172.168.38.0/24
> > \ |
> > R3 -|
> >
> > R1 subinter is point-to-multi
> > R2 is physical
> > R3 is physical
> >
> > I'm running EIGRP.
> >
> > Do I need to enable?
> >
> > ip split-horizon eigrp 10 on the spokes
> >
> > My objective is to see the ethernet network on R1
> > via R2 and R3.
> >
> > Actually when I use no or with ip split-horizon
> > eigrp
> > 10 on the spokes. I see on R1 network 172.168.38.0
> > reachable via R2 and R3. So what is correct?
> >
> > Thanks,
> > Angelo
> >
> >
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>
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