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List:       quagga-users
Subject:    [quagga-users 9709]  neighbors stuck in Init state on some routers
From:       "Brian J. Murrell" <brian () interlinx ! bc ! ca>
Date:       2008-07-12 14:38:41
Message-ID: 1215873521.28080.3.camel () pc ! ilinx
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I seem to have this chronic problem where from time to time, some (OSPF)
neighbors will be stuck in an Init state on some hosts, but not others.
For example:

ospfd> show ip ospf neighbor  

    Neighbor ID Pri State           Dead Time Address         Interface            RXmtL RqstL DBsmL
10.75.22.2        1 2-Way/DROther     35.039s 10.75.22.2      eth0:10.75.22.1          0     0     0
10.75.22.3        1 2-Way/DROther     35.144s 10.75.22.3      eth0:10.75.22.1          0     0     0
10.75.22.4        1 2-Way/DROther     35.039s 10.75.22.4      eth0:10.75.22.1          0     0     0
10.75.22.5        1 2-Way/DROther     36.016s 10.75.22.5      eth0:10.75.22.1          0     0     0
192.168.122.1     1 2-Way/DROther     36.284s 10.75.22.179    eth0:10.75.22.1          0     0     0
10.0.2.15         1 2-Way/DROther     35.100s 10.75.22.201    eth0:10.75.22.1          0     0     0
10.75.22.223      1 Full/Backup       35.039s 10.75.22.223    eth0:10.75.22.1          0     0     0
10.75.22.254      1 Full/DR           36.303s 10.75.22.254    eth0:10.75.22.1          0     0     0

All fine and dandy.  But on another node in the same network, running
the same OS (and therefore same quagga version):

ospfd> show ip ospf neighbor 

    Neighbor ID Pri State           Dead Time Address         Interface            RXmtL RqstL DBsmL
10.75.22.1        1 Full/DROther      36.968s 10.75.22.1      eth0:10.75.22.4         12     0     0
10.75.22.2        1 Full/DROther      36.968s 10.75.22.2      eth0:10.75.22.4          0     0     0
10.75.22.3        1 Full/DROther      37.086s 10.75.22.3      eth0:10.75.22.4         12     0     0
10.75.22.5        1 Full/DROther      37.943s 10.75.22.5      eth0:10.75.22.4          0     0     0
192.168.122.1     1 Full/DROther      38.221s 10.75.22.179    eth0:10.75.22.4         12     0     0
10.0.2.15         1 Full/DROther      37.041s 10.75.22.201    eth0:10.75.22.4          0     0     0
10.75.22.223      1 Full/Backup       36.968s 10.75.22.223    eth0:10.75.22.4          0     0     0
10.75.22.254      1 Init/DROther      38.248s 10.75.22.254    eth0:10.75.22.4          0     0     0

Notice that 10.75.22.254 is still in Init.  It has been that way for a
long time.

What could cause this?

b.


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