If using a physical interface with Frame -Relay(or other NBMA network), the
default for ip split horizon is off. With a standard serial link (no-frame
(NBMA)) the default is for split horizon to be on.
Louie
Since time immemorial and pre-industrial, 'greed' has been the accusation
hurled at the rich by the concrete-bound illiterates who were unable to
conceive of the source of wealth or of the motivation of those who produce
it.
-- Ayn Rand
-----Original Message-----
From: jeongwoo park [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 01, 2000 12:13 PM
To: Louie Belt; [EMAIL PROTECTED]
Subject: RE: Sub Interfaces (hmmm?)
Hi Louie
I just want to clear one thing.
I thought that subinterface was created as a solution
for split horizon, so without subinterface configured,
split horizon should be on.
Could you verify what you said "if you are no using a
sub
interface on a physical interface, split horizon is
off by default, always
enable it on any "spoke" routers."?
I am not trying to be against you. I just want to
clear myself up.
Thanks.
jeongwoo
--- Louie Belt <[EMAIL PROTECTED]> wrote:
> Be sure to turn off ip split horizon (or apple, or
> ipx eigrp) on the
> multipoint interface. Also remember, over frame, if
> you are no using a sub
> interface on a physical interface, split horizon is
> off by default, always
> enable it on any "spoke" routers.
>
> Additionally be aware of the issues that each
> routing protocol has with a
> multipoint interface (i.e. - setting the ospf
> network type on the spokes and
> hub).
>
> Louie
>
> Since time immemorial and pre-industrial, 'greed'
> has been the accusation
> hurled at the rich by the concrete-bound illiterates
> who were unable to
> conceive of the source of wealth or of the
> motivation of those who produce
> it.
> -- Ayn Rand
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> Austin
> Sent: Sunday, October 29, 2000 9:01 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Sub Interfaces (hmmm?)
>
>
> I am configuring 2 sub-interfaces on the router. One
> subinterface for the
> connection to router1 and 1 subinterface for the
> connection to router2 and
> router3. I will not be configuring subinterfaces on
> router1, router2 and
> router3.
> Hope this gives you some more information and it is
> a Frame Relay
> environment yes. You guys rock!
>
>
> <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > In a message dated 10/29/00 12:51:45 AM Eastern
> Daylight Time,
> > [EMAIL PROTECTED] writes:
> >
> >
> > > On Sat, 28 Oct 2000, Austin wrote:
> > >
> > > > Hi Group (Brian, Tim Brad, et al.)
> > > >
> > > > Thank you all for your help. I have one more
> question though :)
> > > > Can you configure one subinterface to
> communicate with 2 different
> > > routers?
> > >
> > > can you be more specific? I am going to make
> the assumption you are
> > > talking about Frame Relay, in which case yes you
> can configure a sub
> > > interface as "point to multipoint" and it can
> communicate with many
> > > routers within that same subnet.
> > >
> > > brian
> > >
> >
> > Hey, you know what. I was going to try to answer
> this question but wasn't
> too
> > sure and didn't want to steer him in the wrong
> way. What you said is what
> I
> > thought but something is bothering me.
> >
> > Point-to-multipoint. Lets say you have the head,
> and it's connected to 5
> > remote ends. On the head you would use basically 5
> subinterfaces. Each for
> a
> > different remote end. This is easy to me and
> normal. His question makes me
> > think though because he is asking if, instead of
> having one sub-int for
> each
> > remote end, to have 4 interfaces and lets say one
> of those sub-int's for 2
> of
> > the remote ends. I haven't ever seen this done and
> I'm wondering if it
> would
> > work??? Hmmm, interesting thought. Anybody up for
> it?
> >
> > Mark Zabludovsky ~ CCNA, CCDA, 1/4-NP
> > <A HREF="mailto:
> [EMAIL PROTECTED]">[EMAIL PROTECTED]</A>
> >
> > "If you need luck, apparently you're not
> prepared...Go study!"
> >
> > ~Mark Zabludovsky~
> >
> > _________________________________
> > FAQ, list archives, and subscription info:
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> >
>
>
> _________________________________
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