Re: OSPF Error " EXSTART to DOWN "

I think there is no problem you can use both, if you are in the lab you can
ask the proctor

he will tell u if it's ok or no !

Salah

On Sat, Apr 11, 2009 at 10:40 AM, Paul Adams <ccie.paul_at_gmail.com> wrote:

> Hi,
>
> As of now I have applied the command sh ip ospf mtu-ignor, I believe it
> should be ok ( but isnt ).
>
> As per the question < do not change any inital configuration > ; due to
> this I am, not chainging the system mtu size of Switch
>
>
>
> On Sat, Apr 11, 2009 at 9:57 AM, Salah ElShekeil <
> salah.elshekeil_at_gmail.com> wrote:
>
>> chang the mtu to be the same as the router in the switch 1500byte
>>
>> but you have to reload the switch after applying the command
>>
>> HTH
>>
>> Salah
>>
>> On Sat, Apr 11, 2009 at 9:52 AM, Paul Adams <ccie.paul_at_gmail.com>wrote:
>>
>>> Thanks.
>>>
>>> I already have ip ospf mtu-ignore.
>>>
>>> So what could be the other possibility
>>>
>>> On Sat, Apr 11, 2009 at 9:35 AM, Salah ElShekeil <
>>> salah.elshekeil_at_gmail.com> wrote:
>>>
>>>> check out system mtu !!
>>>>
>>>>
>>>> use ip ospf mtu ign interface level command
>>>> On Sat, Apr 11, 2009 at 9:26 AM, Paul Adams <ccie.paul_at_gmail.com>wrote:
>>>>
>>>>> Hello GS,
>>>>>
>>>>> Time to Time I start getting the notification
>>>>>
>>>>> *2d22h: %OSPF-5-ADJCHG: Process 1, Nbr 4.4.3.3 on Vlan12 from EXSTART
>>>>> to
>>>>> DOWN, Neighbor Down: Too many retransmissions
>>>>> 2d22h: %OSPF-5-ADJCHG: Process 1, Nbr 4.4.3.3 on Vlan12 from DOWN to
>>>>> DOWN,
>>>>> Neighbor Down: Ignore timer expired
>>>>> *
>>>>> and I start losing routes when I see " SH IP ROUTE "
>>>>>
>>>>>
>>>>> SW1#sh ip ospf
>>>>> neighbor
>>>>>
>>>>>
>>>>>
>>>>> Neighbor ID Pri State Dead Time Address
>>>>> Interface
>>>>> 4.4.3.3 1 FULL/BDR 00:00:32 4.4.12.3
>>>>> Vlan12
>>>>>
>>>>> SW1#sh system
>>>>> mtu
>>>>>
>>>>> System MTU size is 1504 bytes
>>>>> R3#sh ip ospf
>>>>> neighbor
>>>>>
>>>>>
>>>>>
>>>>> Neighbor ID Pri State Dead Time Address
>>>>> Interface
>>>>> 4.4.7.7 1 FULL/DR 00:00:30 4.4.12.7
>>>>> FastEthernet0/0
>>>>>
>>>>> R3#sh int fastEthernet
>>>>> 0/0
>>>>>
>>>>> FastEthernet0/0 is up, line protocol is
>>>>> up
>>>>>
>>>>> Hardware is MV96340 Ethernet, address is 001d.46f3.b838 (bia
>>>>> 001d.46f3.b838)
>>>>> Internet address is 4.4.12.3/24
>>>>>
>>>>> MTU 1500 bytes, BW 100000 Kbit, DLY 100
>>>>> usec,
>>>>>
>>>>> reliability 255/255, txload 1/255, rxload
>>>>> 1/255
>>>>>
>>>>> Encapsulation ARPA, loopback not
>>>>> set
>>>>>
>>>>> Keepalive set (10
>>>>> sec)
>>>>>
>>>>> Full-duplex, 100Mb/s,
>>>>> 100BaseTX/FX
>>>>>
>>>>> ARP type: ARPA, ARP Timeout
>>>>> 04:00:00
>>>>>
>>>>> Last input 00:00:03, output 00:00:01, output hang
>>>>> never
>>>>>
>>>>> Last clearing of "show interface" counters
>>>>> never
>>>>>
>>>>> Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
>>>>> 0
>>>>> Queueing strategy:
>>>>> fifo
>>>>>
>>>>> Output queue: 0/40
>>>>> (size/max)
>>>>>
>>>>> 5 minute input rate 0 bits/sec, 0
>>>>> packets/sec
>>>>>
>>>>> 5 minute output rate 0 bits/sec, 0
>>>>> packets/sec
>>>>>
>>>>> 1151 packets input, 378891
>>>>> bytes
>>>>>
>>>>> Received 1107 broadcasts, 0 runts, 0 giants, 0
>>>>> throttles
>>>>>
>>>>> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0
>>>>> ignored
>>>>>
>>>>> 0
>>>>> watchdog
>>>>>
>>>>> 0 input packets with dribble condition
>>>>> detected
>>>>>
>>>>> 9141 packets output, 882911 bytes, 0
>>>>> underruns
>>>>>
>>>>> 0 output errors, 0 collisions, 0 interface
>>>>> resets
>>>>>
>>>>> 0 unknown protocol
>>>>> drops
>>>>>
>>>>> 0 babbles, 0 late collision, 0
>>>>> deferred
>>>>>
>>>>> 0 lost carrier, 0 no
>>>>> carrier
>>>>>
>>>>> 0 output buffer failures, 0 output buffers swapped out
>>>>>
>>>>>
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Received on Sat Apr 11 2009 - 11:03:00 ART