From: Bruce Williams (bwilliams175@comcast.net)
Date: Wed Oct 09 2002 - 12:01:38 GMT-3
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.
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