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List:       quagga-users
Subject:    [quagga-users 488] OSPFd Losing Area Rotues
From:       Zhen Xu <zhen () logiclink ! com>
Date:       2003-09-28 15:44:39
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All,

I am currently running quagga version 0.96.1 with the following
configuration:

                       |
                       | Area 1
                      [B]
                       |
                       | Area 0
                       |
                      [A]
                      / \
                     /   \
           Area 0 __/     \__ Area 0
                 /           \
                /   Area 0    \
               [C]-----------[D]---- Area 2
                |             |
         Area 3 |             | Area 2
                |             |
               [E]
                |
         Area 3 |
                |

The links A-B, A-C, A-D, and C-D are basically GRE over IPSec connections
(PPP mode). The above four links forms the Area 0. B has its own local
ethernet interface and this interface forms Area 1. D has two local ethernet
interfaces and those interfaces form Area 2. C is connected to another box E
running quagga via local ethernet and E has another local ethernet. Link C-E
and the other E's local ethernet interface form Area 3. 

The above configuration works great most of the time. However, when C is
rebooted, or the link A-C or C-D goes down and comes back again, or D is
rebooted, E will completely lose route to Area 1 or Area 2 (depending if it
is A-C down or C-D down). When the above situation happens, I can see the
full routes to all areas on C once the link to A or D comes up. However,
those routes does not seem to be picked up by E sometimes. If I restart
OSPFd on either C or E, E will pick up the full routes to all areas right
after. Could someone help me out and point me the to right direction?
Thanks!

zxu

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