RE: EXPERT plz plz help...OSPF scnario brusting my head..

From: Joseph Brunner (joe@affirmedsystems.com)
Date: Sun Aug 03 2008 - 03:48:48 ART


5.) when i am traceroute from R6 to R1 for 200.x.x.x it is taking the path
as follow:

   R6 --> R4 --> R2 --> R1-->200.x.x.x

 

>On R6 show ip ospf database and please post the results and post "show ip
ospf database summary 200.x.x.x 255.x.x.x"

>And on R6 please post show ip route. Do you have anything else running?
Eigrp? Bgp?

 

 

i am expecting the path as below , thinking it is the best path to reach
destination.

   R6 --> R4 --> R3 --> R1-->200.x.x.x

 

>Yes Between R6 (in Area 2) and R1 (in Area 1) traffic must route through
area 0, so it should go from R6, R4, <over area 0> R3, R1

 

-Joe

 

 

  _____

From: dave dave [mailto:funccie@gmail.com]
Sent: Saturday, August 02, 2008 10:48 PM
To: Cisco certification; bdennis@internetworkexpert.com;
blog@internetworkexpert.com; Joseph Brunner; Narbik Kocharians
Subject: EXPERT plz plz help...OSPF scnario brusting my head..

 

Hi Expert,

 

net: 200.0.0.0/24

--------------------------

| |

R1 ---------------- R2

| |

R3=========R4 << === it means 2 physical L2 links ether channel as e.g.
L2 Po1 & Vlan 100 running on R3 as well as R4 to to form ospf neighborship
over L2 port channel. Vlan 100 in area 0

| |

R5----------------R6

| |

-------------------------

net: 100.0.0.0/24

 

Note :

this color represting the ospf area 2

this color represting the ospf area 1

this color represting the ospf area 0

 

1) R1, R2 & including links of R1 & R2 connected to R3 & R4 are on OSPF area
1

2) R5, R6 & including links of R5 & R6 connected to R3 & R4 are on OSPF area
2

3) All links are 100 Mbps.

4) L2 ether channel of each 100 Mbps links between the R3 & R4 is for vlan
100 ospf neighborship

5.) when i am traceroute from R6 to R1 for 200.x.x.x it is taking the path
as follow:

   R6 --> R4 --> R2 --> R1-->200.x.x.x

i am expecting the path as below , thinking it is the best path to reach
destination.

   R6 --> R4 --> R3 --> R1-->200.x.x.x

 

Regards,

Dave

Blogs and organic groups at http://www.ccie.net



This archive was generated by hypermail 2.1.4 : Mon Sep 01 2008 - 08:15:29 ART