From: Peter van Oene (pvo@usermail.com)
Date: Fri Nov 01 2002 - 10:21:49 GMT-3
At 03:31 PM 11/1/2002 +0800, Szeto Jeff wrote:
>Hi Group,
>
>I have a eigrp problem in a live network.
>
>R1-s0---------s0-R2-e0-------e0R3-s0---------s0-R4-e0
>
>Only eigrp is running. Everything is alright in normal condition. The
>problem is if R4's ethernet (e.g 172.16.1.0/24) is down, R2 will
>advertise it can reach that network via R1, which is impossible.
>Sure, an outbound access-list in R1 can solve this situation, but I want
>to know why.
>Split-horizon is enabled (by default).
Buggy code? I have run into numerous situations where EIGRP speakers will
advertise a network they receive in an update during an interface
transition. Such a bug would produce symptoms like you are seeing. I
highly suggest a little bug navigation.
>Could anyone tell me what are the possible reasons?
>
>Thank you very much.
>
>Regards,
>
>Jeff
>
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