From: Rik Guyler (rik@guyler.net)
Date: Mon Mar 17 2008 - 13:53:55 ART
Whenever I configure FR and no dynamic mappings are allowed, I always
shutdown the interface, change the encapsulation to HDLC, back to FR and
then disable inverse ARP and bring back up. This will clear out any dynamic
mappings (and 0.0.0.0 mappings) without reloading the router. At least it's
always worked for me.
Rik
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Adel
Karim
Sent: Monday, March 17, 2008 7:58 AM
To: Envuladu Tsaku
Cc: steveaggie@gmail.com; cisco-addicted; Cisco certification
Subject: Re: EIGRP adjacency Flapping
This usually happens when you have incorrect FR dynamic mappings between the
spokes (usually pointing to 0.0.0.0). I used to solve this by wr/reload and
it used to work fine with me since I didn't want the spokes to become EIGRP
neighbors anyway...
Regards
Adel Karim Mansour
On Mon, Mar 17, 2008 at 1:49 PM, Envuladu Tsaku <tenvuladu@yahoo.com> wrote:
> Thank goodness.
> I battled with this same problem for two nights.I thought i was Jinxed.
>
>
>
> steveaggie@gmail.com wrote: Are you using dynamips? This happened to
> me when my CPU was over-utilized.
> Make sure your idlepc value is right.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of cisco-addicted
> Sent: Sunday, March 16, 2008 7:43 PM
> To: 'Cisco certification'
> Subject: EIGRP adjacency Flapping
>
> Dears,
>
> I configured a partial frame relay between three routers (R1, R2 &
> R3) with
> R2 as a HUB and R1 & R3 the spokes.
>
>
>
> The L2 configuration for mapping the DLCI is working fine and I can
> ping all the interfaces with broadcast keywork added in the mapping
> statement.
>
>
>
> The problem is we I configured the EIGRP AS 100 between them the
> adjacency come up, but I always got the following error in R3 ( the
> spoke) mentioning that the other Spoke's IP address is not down.!!!!!
>
>
>
> May someone explain what is the reason for this flapping???
>
>
>
>
>
>
>
>
>
> Rack1R3(config-router)#
>
> *May 9 05:25:03.785: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.123.1 (Serial1/0) is down: retry limit exceeded
>
> Rack1R3(config-router)#
>
> *May 9 05:25:49.965: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.123.1 (Serial1/0) is up: new adjacency
>
> Rack1R3(config-router)#
>
> Rack1R3#
>
> *May 9 05:26:01.445: %SYS-5-CONFIG_I: Configured from console by
> console
>
> Rack1R3#
>
> *May 9 05:28:54.477: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.123.1 (Serial1/0) is down: retry limit exceeded
>
> Rack1R3#
>
> *May 9 05:29:20.069: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.123.1 (Serial1/0) is up: new adjacency
>
> Rack1R3#
>
>
>
>
>
>
>
> Thanks in advance gang.
>
>
>
> Moe
>
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-- Regards Adel Karim Mansour CCIE# 20147 R&S
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