From: Carlos G Mendioroz (tron@xxxxxxxxxxx)
Date: Wed Jun 05 2002 - 08:09:16 GMT-3
This sounds like the DBD packets are not getting through.
Would nail the interface to half duplex, speed to 10 in the fast,
just to find out if it is indeed a layer 1 issue...
Remember that hellos are short, DBDs are long.
"Chua, Parry" wrote:
>
> I notice that your ethernet is set to full-duplex, what about the switch port
?
>
> You may want to create a seperate ospf process for this interface only and ve
rify...
>
> > Parry Chua
> >
> >
>
> -----Original Message-----
> From: Lab Candidate [mailto:labccie@yahoo.com]
> Sent: Wednesday, June 05, 2002 4:24 PM
> To: li jian hua
> Cc: ccielab@groupstudy.com
> Subject: Re: OSPF neighbor problem
>
> Jason, thanks for your advice. I have checked all the items, and even applied
the ip ospf
> mtu-ignore command, but sitll not working. here's the output for two adjacent
interfaces:
>
> r3#sh ip os int e0/0
> Ethernet0/0 is up, line protocol is up
> Internet Address 170.10.54.1/24, Area 2
> Process ID 9, Router ID 3.3.3.3, Network Type BROADCAST, Cost: 10
> Transmit Delay is 1 sec, State BDR, Priority 1
> Designated Router (ID) 5.5.5.5, Interface address 170.10.54.2
> Backup Designated router (ID) 3.3.3.3, Interface address 170.10.54.1
> Flush timer for old DR LSA due in 00:02:36
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> Hello due in 00:00:02
> Index 2/3, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 0, maximum is 0
> Last flood scan time is 0 msec, maximum is 0 msec
> Neighbor Count is 1, Adjacent neighbor count is 0
> Suppress hello for 0 neighbor(s)
> r3#
>
> r5#sh ip os int f0/0
> FastEthernet0/0 is up, line protocol is up
> Internet Address 170.10.54.2/24, Area 2
> Process ID 9, Router ID 5.5.5.5, Network Type BROADCAST, Cost: 1
> Transmit Delay is 1 sec, State DR, Priority 1
> Designated Router (ID) 5.5.5.5, Interface address 170.10.54.2
> Backup Designated router (ID) 3.3.3.3, Interface address 170.10.54.1
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
> Hello due in 00:00:02
> Index 1/3, flood queue length 0
> Next 0x0(0)/0x0(0)
> Last flood scan length is 0, maximum is 0
> Last flood scan time is 0 msec, maximum is 0 msec
> Neighbor Count is 1, Adjacent neighbor count is 0
> Suppress hello for 0 neighbor(s)
> r5#
>
> --- li jian hua <jasonli@cisco.com> wrote:
> > Please check mtu,network mask,network type,interface timer
> > parameter,authentication-type etc between two ethernet interface.They
> > should be the same.
> > Cisco has a book named by Troubleshooting IP Routing Protocols (CCIE
> > Professional Development Series).
> >
> http://www.ciscopress.com/catalog/product.asp?product_id={17F54ECB-821D-488F-
B906-E022F53FE5FA}&session_id={6BDB75D0-3B65-4699-8BB5-D2940D662D86}
> > please read it.
> > rgds
> > jason
> > At 00:44 2002-6-5 -0700, Lab Candidate wrote:
> > >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 Interfac
e
> > >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 Ethernet
0/0
> > >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 Interfac
e
> > >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: %OSPF-5-ADJCHG: Process 9, Nbr 3.3.3.3 on
> >
> === message truncated ===
>
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