EIGRP adjacency Flapping

From: cisco-addicted (cisco.addicted@gmail.com)
Date: Sun Mar 16 2008 - 21:42:52 ART


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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