From: mize (mize@xxxxxxxxxxxx)
Date: Wed Jun 05 2002 - 22:45:34 GMT-3
Maybe it is the speed/duplex problem. Try to set the speed to 10 and duplex to
full(or half).
>interface FastEthernet0/0
> ip address 170.10.54.2 255.255.255.0
> duplex auto
> speed auto
>IF it indeed turns out to be mtu issue, you can type ip ospf mtu-ignore in
>interface config mode.
>
>rgds
>Nick
>-----Original Message-----
>From: Lab Candidate <labccie@yahoo.com>
>To: ccielab@groupstudy.com <ccielab@groupstudy.com>
>Date: Wednesday, 5 June 2002 6:21
>Subject: OSPF neighbor problem
>
>
>>two routers r3 and r5 won't form ospf neighbors over ethernet intf's.
>>it's stuck in exstart state. could anyone please help with any advice?
>>
>>
>>r3-e0/0----------f0/0-r5
>>
>>
>>r3:
>>
>>interface Ethernet0/0
>> ip address 170.10.54.1 255.255.255.0
>> full-duplex
>>!
>>router ospf 9
>> router-id 3.3.3.3
>> log-adjacency-changes
>> area 2 virtual-link 5.5.5.5
>> network 170.10.50.0 0.0.0.255 area 2
>> network 170.10.54.0 0.0.0.255 area 2
>> network 170.10.80.0 0.0.0.255 area 0
>> neighbor 170.10.80.4
>> neighbor 170.10.80.2
>>!
>>r3#sh ip os n
>>
>>Neighbor ID Pri State Dead Time Address Interface
>>170.10.30.1 0 FULL/DROTHER 00:01:38 170.10.80.4 Serial0/1
>>198.133.219.25 0 FULL/DROTHER 00:01:45 170.10.80.2 Serial0/1
>>5.5.5.5 1 EXSTART/DR 00:00:37 170.10.54.2
>Ethernet0/0
>>r3#
>>
>>
>>r5:
>>
>>interface FastEthernet0/0
>> ip address 170.10.54.2 255.255.255.0
>> duplex auto
>> speed auto
>>
>>router ospf 9
>> router-id 5.5.5.5
>> log-adjacency-changes
>> area 2 virtual-link 3.3.3.3
>> network 170.10.40.0 0.0.0.255 area 3
>> network 170.10.54.0 0.0.0.255 area 2
>>!
>>
>>r5#sh ip os n
>>
>>Neighbor ID Pri State Dead Time Address Interface
>>3.3.3.3 1 EXSTART/BDR 00:00:35 170.10.54.1
>FastEthernet0/0
>>r5#
>>
>>
>>==============debug=================
>>
>>r3#
>>
>>00:22:38: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:22:38: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [4]
>>00:22:38: OSPF: rcv. v:2 t:1 l:48 rid:5.5.5.5
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from Ethernet0/0
>>00:22:38: OSPF: Rcv hello from 5.5.5.5 area 2 from Ethernet0/0 170.10.54.2
>>00:22:38: OSPF: End of hello processing
>>r3#
>>00:22:39: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:22:43: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:22:43: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [5]
>>r3#
>>00:22:44: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:22:48: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:22:48: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [6]
>>00:22:48: OSPF: rcv. v:2 t:1 l:48 rid:5.5.5.5
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from Ethernet0/0
>>00:22:48: OSPF: Rcv hello from 5.5.5.5 area 2 from Ethernet0/0 170.10.54.2
>>00:22:48: OSPF: End of hello processing
>>r3#
>>00:22:49: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:22:53: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:22:53: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [7]
>>r3#
>>00:22:54: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:22:58: OSPF: rcv. v:2 t:1 l:48 rid:5.5.5.5
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from Ethernet0/0
>>00:22:58: OSPF: Rcv hello from 5.5.5.5 area 2 from Ethernet0/0 170.10.54.2
>>00:22:58: OSPF: End of hello processing
>>00:22:58: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:22:58: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [8]
>>00:22:58: OSPF: rcv. v:2 t:1 l:48 rid:170.10.30.1
>> aid:0.0.0.0 chk:3328 aut:0 auk: from Serial0/1
>>00:22:58: OSPF: Rcv hello from 170.10.30.1 area 0 from Serial0/1
>170.10.80.4
>>00:22:58: OSPF: End of hello processing
>>r3#
>>00:22:59: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:23:03: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:23:03: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [9]
>>r3#
>>00:23:04: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:23:05: OSPF: rcv. v:2 t:1 l:48 rid:198.133.219.25
>> aid:0.0.0.0 chk:5994 aut:0 auk: from Serial0/1
>>00:23:05: OSPF: Rcv hello from 198.133.219.25 area 0 from Serial0/1
>170.10.80.2
>>00:23:05: OSPF: End of hello processing
>>r3#
>>00:23:08: OSPF: rcv. v:2 t:1 l:48 rid:5.5.5.5
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from Ethernet0/0
>>00:23:08: OSPF: Rcv hello from 5.5.5.5 area 2 from Ethernet0/0 170.10.54.2
>>00:23:08: OSPF: End of hello processing
>>00:23:08: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:23:08: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [10]
>>r3#
>>00:23:09: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:23:13: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:23:13: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [11]
>>r3#
>>00:23:14: OSPF: Input packet while OSPF disabled on Serial0/0
>>r3#
>>00:23:18: OSPF: rcv. v:2 t:1 l:48 rid:5.5.5.5
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from Ethernet0/0
>>00:23:18: OSPF: Rcv hello from 5.5.5.5 area 2 from Ethernet0/0 170.10.54.2
>>00:23:18: OSPF: End of hello processing
>>00:23:18: OSPF: Send DBD to 5.5.5.5 on Ethernet0/0 seq 0xDE7 opt 0x42 flag
>0x7 l
>>en 32
>>00:23:18: OSPF: Retransmitting DBD to 5.5.5.5 on Ethernet0/0 [12]
>>
>>
>>r5#
>>
>>r5#
>>*Mar 1 00:24:23.495: OSPF: rcv. v:2 t:1 l:48 rid:3.3.3.3
>> aid:0.0.0.2 chk:C7D aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:24:23.495: OSPF: Rcv hello from 3.3.3.3 area 2 from
>FastEthernet0/0 1
>>70.10.54.1
>>*Mar 1 00:24:23.499: OSPF:
>>OSPF: Nbr 3.3.3.3 170.10.54.1 FastEthernet0/0 is currently ignored
>>r5#
>>*Mar 1 00:24:33.495: OSPF: rcv. v:2 t:1 l:48 rid:3.3.3.3
>> aid:0.0.0.2 chk:C7D aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:24:33.495: OSPF: Rcv hello from 3.3.3.3 area 2 from
>FastEthernet0/0 1
>>70.10.54.1
>>*Mar 1 00:24:33.495: OSPF:
>>OSPF: Nbr 3.3.3.3 170.10.54.1 FastEthernet0/0 is currently ignored
>>r5# deb ip os p
>>OSPF packet debugging is on
>>r5#
>>*Mar 1 00:24:43.495: OSPF: rcv. v:2 t:1 l:48 rid:3.3.3.3
>> aid:0.0.0.2 chk:C7D aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:24:43.495: OSPF: Rcv hello from 3.3.3.3 area 2 from
>FastEthernet0/0 1
>>70.10.54.1
>>*Mar 1 00:24:43.495: OSPF:
>>OSPF: Nbr 3.3.3.3 170.10.54.1 FastEthernet0/0 is currently ignored
>>r5# deb ip os e
>>OSPF events debugging is on
>>r5# deb ip os a
>>OSPF adjacency events debugging is on
>>r5#
>>*Mar 1 00:24:47.079: OSPF: 3.3.3.3 address 170.10.54.1 on FastEthernet0/0
>is de
>>ad
>>*Mar 1 00:24:47.079: OSPF: 3.3.3.3 address 170.10.54.1 on FastEthernet0/0
>is de
>>ad, state DOWN
>>*Mar 1 00:24:47.079: -5-ADJCHG: Process 9, Nbr 3.3.3.3 on
>FastEthernet0/0
>>from DOWN to DOWN, Neighbor Down: Dead timer expired
>>r5# deb ip os
>>*Mar 1 00:24:47.079: OSPF: Neighbor change Event on interface
>FastEthernet0/0
>>*Mar 1 00:24:47.079: OSPF: DR/BDR election on FastEthernet0/0
>>*Mar 1 00:24:47.079: OSPF: Elect BDR 0.0.0.0
>>*Mar 1 00:24:47.079: OSPF: Elect DR 5.5.5.5
>>*Mar 1 00:24:47.079: DR: 5.5.5.5 (Id) BDR: none
>>*Mar 1 00:24:47.583: OSPF: No full nbrs to build Net Lsa for interface
>FastEthe
>>rnet0/0
>>r5# deb ip os h
>>OSPF hello events debugging is on
>>r5#
>>*Mar 1 00:24:53.499: OSPF: rcv. v:2 t:1 l:48 rid:3.3.3.3
>> aid:0.0.0.2 chk:C7D aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:24:53.499: OSPF: Rcv hello from 3.3.3.3 area 2 from
>FastEthernet0/0 1
>>70.10.54.1
>>*Mar 1 00:24:53.499: OSPF: 2 Way Communication to 3.3.3.3 on
>FastEthernet0/0, s
>>tate 2WAY
>>*Mar 1 00:24:53.499: OSPF: Neighbor change Event on interface
>FastEthernet0/0
>>*Mar 1 00:24:53.499: OSPF: DR/BDR election on FastEthernet0/0
>>*Mar 1 00:24:53.499: OSPF: Elect BDR 0.0.0.0
>>*Mar 1 00:24:53.499: OSPF: Elect DR 5.5.5.5
>>*Mar 1 00:24:53.503: DR: 5.5.5.5 (Id) BDR: none
>>r5#
>>*Mar 1 00:24:53.503: OSPF: Send DBD to 3.3.3.3 on FastEthernet0/0 seq
>0x1B6B op
>>t 0x42 flag 0x7 len 32
>>*Mar 1 00:24:53.503: OSPF: End of hello processing
>>r5#
>>*Mar 1 00:24:58.503: OSPF: Send DBD to 3.3.3.3 on FastEthernet0/0 seq
>0x1B6B op
>>t 0x42 flag 0x7 len 32
>>*Mar 1 00:24:58.503: OSPF: Retransmitting DBD to 3.3.3.3 on
>FastEthernet0/0 [1]
>>r5#
>>*Mar 1 00:25:02.079: OSPF: rcv. v:2 t:2 l:32 rid:3.3.3.3
>> aid:0.0.0.2 chk:9981 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:02.079: OSPF: Rcv DBD from 3.3.3.3 on FastEthernet0/0 seq
>0x1671 o
>>pt 0x42 flag 0x7 len 32 mtu 1500 state EXSTART
>>*Mar 1 00:25:02.079: OSPF: First DBD and we are not SLAVE
>>*Mar 1 00:25:03.495: OSPF: rcv. v:2 t:1 l:48 rid:3.3.3.3
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:03.499: OSPF: Rcv hello from 3.3.3.3 area 2 from
>FastEthernet0/0 1
>>70.10.54.1
>>*Mar 1 00:25:03.499: OSPF: Neighbor change Event on interface
>FastEthernet0/0
>>*Mar 1 00:25:03.499: OSPF: DR/BDR election on FastEthernet0/0
>>*Mar 1 00:25:03.499: OSPF: Elect BDR 3.3.3.3
>>*Mar 1 00:25:03.499: OSPF: Elect DR 5.5.5.5
>>*Mar 1 00:25:03.499: DR: 5.5.5.5 (Id) BDR: 3.3.3.3 (Id)
>>*Mar 1 00:25:03.499: OSPF: End of hello processing
>>*Mar 1 00:25:03.503: OSPF: Send DBD to 3.3.3.3 on FastEthernet0/0 seq
>0x1B6B op
>>t 0x42 flag 0x7 len 32
>>r5#
>>*Mar 1 00:25:03.503: OSPF: Retransmitting DBD to 3.3.3.3 on
>FastEthernet0/0 [2]
>>r5#
>>*Mar 1 00:25:07.079: OSPF: rcv. v:2 t:2 l:32 rid:3.3.3.3
>> aid:0.0.0.2 chk:9981 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:07.079: OSPF: Rcv DBD from 3.3.3.3 on FastEthernet0/0 seq
>0x1671 o
>>pt 0x42 flag 0x7 len 32 mtu 1500 state EXSTART
>>*Mar 1 00:25:07.079: OSPF: First DBD and we are not SLAVE
>>r5#
>>*Mar 1 00:25:08.503: OSPF: Send DBD to 3.3.3.3 on FastEthernet0/0 seq
>0x1B6B op
>>t 0x42 flag 0x7 len 32
>>*Mar 1 00:25:08.503: OSPF: Retransmitting DBD to 3.3.3.3 on
>FastEthernet0/0 [3]
>>r5#
>>*Mar 1 00:25:12.079: OSPF: rcv. v:2 t:2 l:32 rid:3.3.3.3
>> aid:0.0.0.2 chk:9981 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:12.079: OSPF: Rcv DBD from 3.3.3.3 on FastEthernet0/0 seq
>0x1671 o
>>pt 0x42 flag 0x7 len 32 mtu 1500 state EXSTART
>>*Mar 1 00:25:12.079: OSPF: First DBD and we are not SLAVE
>>r5#
>>*Mar 1 00:25:13.495: OSPF: rcv. v:2 t:1 l:48 rid:3.3.3.3
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:13.499: OSPF: Rcv hello from 3.3.3.3 area 2 from
>FastEthernet0/0 1
>>70.10.54.1
>>*Mar 1 00:25:13.499: OSPF: End of hello processing
>>*Mar 1 00:25:13.503: OSPF: Send DBD to 3.3.3.3 on FastEthernet0/0 seq
>0x1B6B op
>>t 0x42 flag 0x7 len 32
>>*Mar 1 00:25:13.503: OSPF: Retransmitting DBD to 3.3.3.3 on
>FastEthernet0/0 [4]
>>r5#
>>*Mar 1 00:25:17.079: OSPF: rcv. v:2 t:2 l:32 rid:3.3.3.3
>> aid:0.0.0.2 chk:9981 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:17.079: OSPF: Rcv DBD from 3.3.3.3 on FastEthernet0/0 seq
>0x1671 o
>>pt 0x42 flag 0x7 len 32 mtu 1500 state EXSTART
>>*Mar 1 00:25:17.083: OSPF: First DBD and we are not SLAVE
>>r5#
>>*Mar 1 00:25:18.503: OSPF: Send DBD to 3.3.3.3 on FastEthernet0/0 seq
>0x1B6B op
>>t 0x42 flag 0x7 len 32
>>*Mar 1 00:25:18.503: OSPF: Retransmitting DBD to 3.3.3.3 on
>FastEthernet0/0 [5]
>>r5#
>>*Mar 1 00:25:22.079: OSPF: rcv. v:2 t:2 l:32 rid:3.3.3.3
>> aid:0.0.0.2 chk:9981 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:22.079: OSPF: Rcv DBD from 3.3.3.3 on FastEthernet0/0 seq
>0x1671 o
>>pt 0x42 flag 0x7 len 32 mtu 1500 state EXSTART
>>*Mar 1 00:25:22.083: OSPF: First DBD and we are not SLAVE
>>r5#
>>*Mar 1 00:25:23.499: OSPF: rcv. v:2 t:1 l:48 rid:3.3.3.3
>> aid:0.0.0.2 chk:2C70 aut:0 auk: from FastEthernet0/0
>>*Mar 1 00:25:23.499: OSPF: Rcv hello from 3.3.3.3 area 2 from
>FastEthernet0/0 1
>>70.10.54.1
>>*Mar 1 00:25:23.499: OSPF: End of hello processing
>>*Mar 1 00:25:23.503: OSPF: Send DBD to 3.3.3.3 on FastEthernet0/0 seq
>0x1B6B op
>>t 0x42 flag 0x7 len 32
>>*Mar 1 00:25:23.503: OSPF: Retransmitting DBD to 3.3.3.3 on
>FastEthernet0/0 [6
>>
>>
>>
>>
>>
>>
This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:26 GMT-3