[zebra 22938] Re: Need Help [Multipath]

Dear Carlos,
Thanks for your answer.
Actually my intention is to test the scenario that you have shown but I 
am stuck at R2 and R3(newly installed OS) they are not getting two 
neighbors. R1 (preinstalled OS) is able to get two neighbors. I can 
guess its related to the OS as I am getting both neighbors at R1. To 
install quagga I took same steps for the three Routers. R1 is running 
since 2 years and I have tested many things in here. Before i connect R3 
to R1 I would like to make sure that R2 and R3 is getting two neighbors. 
Any idea pls?
Regards
Sharif


Carlos Alperin wrote:

>This is not a multipath situation. I don't see the reason for use OSPF in a
>two point to point links like these.
>
>OSPF is Open Short Path Foundry. So, give the link more than one path.
>
>This can be a multipath:
>
>R1
>|\
>| \
>|  \
>|   \
>R2---R3
>
>You do this, and then start to play with the ospf cost and disconnect each
>link R1-R2 or R1-R3
>And check connectivity with R3 that never supposed to be lost.
>
>Carlos Alperin
>
>-----Original Message-----
>From: K. A. Sharif [mailto:[email protected]] 
>Sent: Thursday, July 20, 2006 12:17 AM
>To: [email protected]
>Cc: [email protected]; [email protected]
>Subject: {Spam?} Need Help [Multipath]
>
>Hi,
>Actually I am stuck at this point lots of googling didn't help.
>I am trying to test OSPF. I am able to get OSPF neighbor from one to one if
>it is like bellow i am not getting all neighbors:
>
>R1
>|
>|>>>>>>Back to back cross UTP cable
>|
>R2 (R2 is not getting any neighbor)
>|
>|>>>>>>Through Hub
>|
>R3
>
>If i connect R1 directly to R3 its ok but if i go through R2 its not
>working. So i thought its about multipath I recompiled the quagga with
>--enable-multipath=0 and my kernel (2.4) status is as bellow but still the
>result is same.
>
>make menuconfig result
>
>               [*] TCP/IP 
>networking
>
>
>                       <M>   Threaded linUX application protocol 
>accelerator layer (TUX)                        
>                       [*]     External CGI 
>module                                                              
>                       [ ]     extended TUX logging 
>format                                                 
>                       [ ]     debug 
>TUX                                                                        
>                       [*]   IP: 
>multicasting
>
>
>                       [*]   IP: advanced 
>router                                                             
>                       [*]     IP: policy 
>routing                                                              
>                       [*]       IP: use netfilter MARK value as routing 
>key                  
>                       [*]       IP: fast network address 
>translation                                 
>                       [*]     IP: equal cost 
>multipath                                                     
>
>Any help would be appreciated.
>Thanks in advance
>Sharif
>
>
>  
>