RE: EIGRP adjacency Flapping

From: cisco-addicted (cisco.addicted@gmail.com)
Date: Wed Mar 19 2008 - 21:30:35 ART


Dears,

 Thnaks for your help, I tried & worked on all the comments and notes you
provided but nothing happened.

 

Dear Jonathan,

 I tried the troubleshooting chart and all the ping working fine with me
from everywhere to everywhere with different packet size.

 

Gangs, do you think it is related to IOS bug??? Or how to isolate any
failure in FR?? I am afraid that the FRSW is responsible for that.

 

Check the configuration in the R2 (the hub) and R1 & R2 the spokes and I am
waiting for your feedback.

 

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! R2
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!

interface Serial0/2/0

 ip address 183.1.123.2 255.255.255.0

 encapsulation frame-relay

 no ip split-horizon eigrp 100

 clockrate 125000

 frame-relay map ip 183.1.123.1 201 broadcast

 frame-relay map ip 183.1.123.3 203 broadcast

 no frame-relay inverse-arp

 frame-relay lmi-type cisco

!

interface Serial0/2/1

 no ip address

 shutdown

!

router eigrp 100

 network 150.1.2.2 0.0.0.0

 network 183.1.28.2 0.0.0.0

 network 183.1.123.2 0.0.0.0

 no auto-summary

 eigrp router-id 150.1.2.2

!

 

Rack1R2#sh ip eigrp neighbors

IP-EIGRP neighbors for process 100

H Address Interface Hold Uptime SRTT RTO Q Seq

                                            (sec) (ms) Cnt Num

1 183.1.123.1 Se0/2/0 139 22:40:52 47 1140 0 43

 

 

 

 

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! R1
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

 

!

interface Serial0/2/0

 ip address 183.1.123.1 255.255.255.0

 encapsulation frame-relay

 frame-relay map ip 183.1.123.3 102

 frame-relay map ip 183.1.123.2 102 broadcast

 no frame-relay inverse-arp

 frame-relay lmi-type cisco

!

interface Serial0/2/1

 no ip address

 shutdown

!

router eigrp 100

 network 150.1.1.1 0.0.0.0

 network 183.1.17.1 0.0.0.0

 network 183.1.123.1 0.0.0.0

 no auto-summary

 eigrp router-id 150.1.1.1

!

!

Rack1R1#sh ip eigrp neighbors

IP-EIGRP neighbors for process 100

H Address Interface Hold Uptime SRTT RTO Q Seq

                                            (sec) (ms) Cnt Num

0 183.1.123.2 Se0/2/0 164 22:40:30 105 1140 0 34

 

 

 

 

 

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! R 3
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

 

!

interface Serial1/0

 ip address 183.1.123.3 255.255.255.0

 encapsulation frame-relay

 frame-relay map ip 183.1.123.1 302

 frame-relay map ip 183.1.123.2 302 broadcast

 no frame-relay inverse-arp

!

 

!

router eigrp 100

 redistribute connected metric 10000 10 255 1 1500 route-map
CONNECTED_INTERFACE

 network 183.1.123.3 0.0.0.0

 no auto-summary

 eigrp router-id 150.1.3.3

!

Rack1R3#sh ip ei neighbors

IP-EIGRP neighbors for process 100

H Address Interface Hold Uptime SRTT RTO Q Seq

                                            (sec) (ms) Cnt Num

0 183.1.123.2 Se1/0 163 22:46:02 56 1140 0 34

Rack1R3#

 

 

 

 

From: But Nicky [mailto:lyredhair@gmail.com]
Sent: Tuesday, March 18, 2008 5:49 AM
To: Rik Guyler
Cc: Shine Joseph; Adel Karim; Envuladu Tsaku; steveaggie@gmail.com;
cisco-addicted; Cisco certification
Subject: Re: EIGRP adjacency Flapping

 

Hi all,
I think maybe there two causes:
   1. split-horizon
   2. duplicate router-id at EIGRP process.

BR,
But.



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