From: D. Lee (dongweylee1@attbi.com)
Date: Wed Oct 09 2002 - 16:19:11 GMT-3
The thing that confused me is that split-horizon is automatically disabled
for EIGRP on physical interface (not sure about physical frame-relay ??).
But, all the routes from the spoke router did not pass through the hub, so
that is why I have to disable it again on the physical interface. It works,
but I have no idea how to check if split-horizon is disabled for Eigrp on
the interface.
----- Original Message -----
From: "Bruce Williams" <bwilliams175@comcast.net>
To: "Brian McGahan" <brian@cyscoexpert.com>; "'D. Lee'"
<dongweylee1@attbi.com>; <ccielab@groupstudy.com>
Sent: Wednesday, October 09, 2002 8:01 AM
Subject: RE: Help: Split Horizon??
> I need some clarification please. I have read that split horizon is
> automatically disabled for RIP, IGRP and EIGRP on physical frame relay
> interfaces. Are you saying that split horizon is NOT automatically
disabled
> on physical frame relay interfaces for EIGRP?
>
> Bruce
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Brian McGahan
> Sent: Tuesday, October 08, 2002 3:34 PM
> To: 'D. Lee'; ccielab@groupstudy.com
> Subject: RE: Help: Split Horizon??
>
>
> Split horizon for IP is disabled on your frame-relay main
> interface by default. This is different from split horizon for IP
> EIGRP.
>
> To (dis/en)able split horizon for IP
>
> [no] ip split-horizon
>
> To (dis/en)able split horizon for IP EIGRP
>
> [no] ip split-horizon eigrp 1
>
>
> See the following links for more detail:
>
> http://www.cisco.com/en/US/tech/tk713/tk237/technologies_tech_note09186a
> 00800942ab.shtml
>
> http://www.cisco.com/warp/public/103/eigrp2.html
>
>
> HTH
>
> Brian McGahan, CCIE #8593
> Director of Design and Implementation
> brian@cyscoexpert.com
>
> CyscoExpert Corporation
> Internetwork Consulting & Training
> http://www.cyscoexpert.com
> Voice: 847.674.3392
> Fax: 847.674.2625
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of D.
> > Lee
> > Sent: Tuesday, October 08, 2002 1:42 PM
> > To: ccielab@groupstudy.com
> > Subject: Help: Split Horizon??
> >
> > R1 is the Hub of Frame-Relay network, and R2, R3 are the spoke
> routers.
> > They all use physical interfaces connect to each other, and have EIGRP
> > running
> > in between.
> >
> > I use "sho ip interface serial x" command to check if split horizon is
> > enabled
> > or disabled for any particular interface.
> >
> > If one of them said enabled and I have to disable it (for some
> reason),
> > then I
> > enter "no ip split-horizon eigrp ##" under that interface. I do "sho
> ip
> > interface serial x", and it still said enabled and nothing changed.
> >
> > If one of them said disabled and I have to enable it (for some
> reason),
> > then I
> > enter "ip split-horizon eigrp ##" under that interface. I do "sho ip
> > interface
> > serial x", and it still said disabled and nothing changed.
> >
> > Is it supposed to work this way?? How do I know if something is really
> > enabled/disabled?? Did I use the wrong command??
> >
> > Thanks for any feedback.
This archive was generated by hypermail 2.1.4 : Tue Nov 05 2002 - 08:35:45 GMT-3