From: Sergey Golovanov (sergey.golovanov@iementor.com)
Date: Tue Jan 16 2007 - 18:36:36 ART
are you sure you haven't changed "system mtu" on the switches? that automatically changes MTU on SVI interfaces, causing OSPF to freak out
--------------------------------------------------------------------
Sergey Golovanov, CCIEx5 (R&S/Security/Voice/Service Provider/Storage)
"Please, don't ask me for my ccie #, there are reasons why I can't release it"
ieMentor Instructor and Content Developer
sergey.golovanov@iementor.com
http://www.iementor.com
> -------Original Message-------
> From: Yin Chenghua <ych2008@gmail.com>
> Subject: ospf adj can't formed suddenly, circle in Init-Exstart-Init-Exchang-Init-Exchange
> Sent: Jan 16 '07 14:11
>
> two switches runs well for serveral month with ospf, but since last friday
> ospf adj can't formed suddenly, circle in
> Init-Exstart-Init-Exchang-Init-Exchange.( no configration changed)
>
>
>
> Jan 16 14:46:12: %OSPF-5-ADJCHG: Process 1, Nbr 172.24.0.8 on
> GigabitEthernet1/1 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired
>
> Jan 16 14:46:14: %OSPF-5-ADJCHG: Process 1, Nbr 172.24.0.8 on
> GigabitEthernet1/1 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired
>
> Jan 16 14:46:15: %OSPF-5-ADJCHG: Process 1, Nbr 172.24.0.8 on
> GigabitEthernet1/1 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired
>
> Jan 16 14:46:17: %OSPF-5-ADJCHG: Process 1, Nbr 172.24.0.8 on
> GigabitEthernet1/1 from EXSTART to DOWN, Neighbor Down: Dead timer expired
>
> Jan 16 14:46:19: %OSPF-5-ADJCHG: Process 1, Nbr 172.24.0.8 on
> GigabitEthernet1/1 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired
>
> Jan 16 14:46:21: %OSPF-5-ADJCHG: Process 1, Nbr 172.24.0.8 on
> GigabitEthernet1/1 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired
>
> Jan 16 14:46:22: %OSPF-5-ADJCHG: Process 1, Nbr 172.24.0.8 on
> GigabitEthernet1/1 from EXSTART to DOWN, Neighbor Down: Dead timer expired
>
>
>
>
>
>
>
> seeing errors/CRC/frame in one interface
> ......
> Received 102127 broadcasts (0 IP multicast)
> 0 runts, 0 giants, 0 throttles
> 387241 input errors, 94045 CRC, 94045 frame, 0 overrun, 0 ignored
> 0 watchdog, 0 multicast, 0 pause input
> 0 input packets with dribble condition detected
> 390752 packets output, 61184819 bytes, 0 underruns
> 0 output errors, 0 collisions, 1 interface resets
> ...
>
> It looks like a phsical problem, but after changed fiber,SFP, still seeing
> errors, any other reason will cause this happen?
>
> Thanks,
>
> David
>
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This archive was generated by hypermail 2.1.4 : Thu Feb 08 2007 - 23:46:56 ART