From: loke (loke14@gmail.com)
Date: Sat May 27 2006 - 01:23:58 ART
on the router interface
ip ospf mtu-ignore
On 5/26/06, Duncan Maccubbin <duncan.maccubbin@earthlink.net> wrote:
>
> The MTU on the CAT is set to 1504. You'll need to set it to 1500 and
> reboot the CAT. I think you could see it pretty clearly with:
>
> debug ip ospf adj
>
> -----Original Message-----
> >From: "Adam S. Roth" <adam@therothfamily.net>
> >Sent: May 26, 2006 8:17 PM
> >To: ccielab@groupstudy.com
> >Subject: OSPF - NMC Lab 2
> >
> >I am kind of stuck. I did some searching online, on Cisco and some group
> >study archive searching and still cant get the following error message to
> >stop :
> >
> >00:21:45: %OSPF-5-ADJCHG: Process 1, Nbr 172.16.102.1 on Vlan40 from DOWN
> to
> >DOW
> >N, Neighbor Down: Dead timer expired
> >00:23:02: %OSPF-5-ADJCHG: Process 1, Nbr 172.16.102.1 on Vlan40 from
> EXSTART
> >to
> >DOWN, Neighbor Down: Too many DBD retransmitions
> >00:23:45: %OSPF-5-ADJCHG: Process 1, Nbr 172.16.102.1 on Vlan40 from DOWN
> to
> >DOW
> >N, Neighbor Down: Dead timer expired00:27:02: %OSPF-5-ADJCHG: Process 1,
> Nbr
> >172.16.102.1 on Vlan40 from EXSTART to
> >DOWN, Neighbor Down: Too many DBD retransmitions
> >
> >
> >
> >Orginally , by mistake I assign the same loop back to R2 and Cat1. I
> >removed the wrong one, did a write mem and then a reboot and those
> messages
> >above appeared.
> >
> >I checked duplex, here is vlan 40 from CAT1
> >
> >Vlan40 is up, line protocol is up
> > Hardware is EtherSVI, address is 000a.b712.9680 (bia 000a.b712.9680)
> > Internet address is 172.16.20.10/25
> > MTU 1504 bytes, BW 1000000 Kbit, DLY 10 usec,
> > reliability 255/255, txload 1/255, rxload 1/255
> > Encapsulation ARPA, loopback not set
> > ARP type: ARPA, ARP Timeout 04:00:00
> > Last input 00:00:05, output 00:00:07, output hang never
> > Last clearing of "show interface" counters never
> > Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 4
> > 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
> > 352 packets input, 32794 bytes, 0 no buffer
> > Received 0 broadcasts (0 IP multicast)
> > 0 runts, 0 giants, 0 throttles
> > 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
> > 343 packets output, 30928 bytes, 0 underruns
> > 0 output errors, 0 interface resets
> > 0 output buffer failures, 0 output buffers swapped out
> >
> >What else should I check?
> >
> >
> >Thanks
> >
> >
> >Adam
> >
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