RE: OSPF neighbor problem

From: Anthony Pace (anthonypace@xxxxxxxxxxx)
Date: Sun Jun 09 2002 - 19:58:57 GMT-3


   
This might be a dumb question, but does the 3.x.x.x and 5.x.x.x need to
be circulated by a routing protocole to give the virtual link IP
connectivity; or is that unneeded because the routers learn this via
the adjacency formed accross the Etehrnet network?

Anthony Pace

On Wed, 5 Jun 2002 10:48:18 -0700 (PDT), "Lab Candidate"
<labccie@yahoo.com> said:
> Thanks all for all the response and good advices. this is what i've
> done:
> 1. the routers have been rebooted before i posted for help
> 2. they are up for over 10 hours now, and still doing the same thing.
> 3. they can ping each other over the e0/0 and f0/0.
> 4. they are both using ios 12.2(7a), see below show version
> 5. both intf's are plugged in Cat3548's f0/4 and f0/7 and vlan'ed in
> vlan8:
> #show cdp d
> r3 Fas 0/4 169 R 2612 Eth
> 0/0
> r5 Fas 0/7 124 R 2621 Fas
> 0/0
> #show vlan
> 8 VLAN0008 active Fa0/4, Fa0/6, Fa0/7,
> Fa0/9
>
> 6. i don't think it's hardware problem, and routers, intf's, cat3548
> have been working fine.
> 7. as to Guy Lupi's advice, I used half-duplex before and changed it to
> full, to no joy.
>
> now what? ;-)
>
> r3#sh ver
> Cisco Internetwork Operating System Software
> IOS (tm) C2600 Software (C2600-JK9O3S-M), Version 12.2(7a), RELEASE
> SOFTWARE (fc
> 2)
> Copyright (c) 1986-2002 by cisco Systems, Inc.
> Compiled Thu 21-Feb-02 03:48 by pwade
> Image text-base: 0x80008088, data-base: 0x8153F5D0
>
> ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
>
> r3 uptime is 10 hours, 14 minutes
> System returned to ROM by reload
> System image file is "flash:c2600-jk9o3s-mz.122-7a.bin"
>
> cisco 2612 (MPC860) processor (revision 0x300) with 61440K/4096K bytes
> of memory
> .
> Processor board ID JAD05500CQ6 (2044823788)
> M860 processor: part number 0, mask 49
> Bridging software.
> X.25 software, Version 3.0.0.
> SuperLAT software (copyright 1990 by Meridian Technology Corp).
> TN3270 Emulation software.
> Basic Rate ISDN software, Version 1.1.
> 1 Ethernet/IEEE 802.3 interface(s)
> 1 Token Ring/IEEE 802.5 interface(s)
> 2 Serial(sync/async) network interface(s)
> 1 ISDN Basic Rate interface(s)
> 32K bytes of non-volatile configuration memory.
> 16384K bytes of processor board System flash (Read/Write)
>
> Configuration register is 0x2102
>
> r3#
> 10:15:32: %OSPF-5-ADJCHG: Process 9, Nbr 5.5.5.5 on Ethernet0/0 from
> EXSTART to
> DOWN, Neighbor Down: Too many retransmitions
> r3#
> 10:16:32: %OSPF-5-ADJCHG: Process 9, Nbr 5.5.5.5 on Ethernet0/0 from
> DOWN to DOW
> N, Neighbor Down: Ignore timer expired
> r3#
> 10:17:52: %OSPF-5-ADJCHG: Process 9, Nbr 5.5.5.5 on Ethernet0/0 from
> EXSTART to
> DOWN, Neighbor Down: Too many retransmitions
> r3#
> 10:18:52: %OSPF-5-ADJCHG: Process 9, Nbr 5.5.5.5 on Ethernet0/0 from
> DOWN to DOW
> N, Neighbor Down: Ignore timer expired
> r3#
>
> r5#sh ver
> Cisco Internetwork Operating System Software
> IOS (tm) C2600 Software (C2600-JK9O3S-M), Version 12.2(7a), RELEASE
> SOFTWARE (fc
> 2)
> Copyright (c) 1986-2002 by cisco Systems, Inc.
> Compiled Thu 21-Feb-02 03:48 by pwade
> Image text-base: 0x80008088, data-base: 0x8153F5D0
>
> ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
>
> r5 uptime is 10 hours, 15 minutes
> System returned to ROM by reload
> System image file is "flash:c2600-jk9o3s-mz.122-7a.bin"
>
> cisco 2621 (MPC860) processor (revision 0x600) with 60416K/5120K bytes
> of memory
> .
> Processor board ID JAD06020LLA (3147233752)
> M860 processor: part number 0, mask 49
> Bridging software.
> X.25 software, Version 3.0.0.
> SuperLAT software (copyright 1990 by Meridian Technology Corp).
> TN3270 Emulation software.
> 2 FastEthernet/IEEE 802.3 interface(s)
> 2 Serial(sync/async) network interface(s)
> --More--
> *Mar 1 10:16:16.221: %OSPF-5-ADJCHG: Process 9, Nbr 3.3.3.3 on
> FastEthernet0/0
> from EXSTART to DOWN, Neighbor Down: Too many retransmitions
> 2 Voice FXS interface(s)
> 32K bytes of non-volatile configuration memory.
> 16384K bytes of processor board System flash (Read/Write)
>
> Configuration register is 0x2102
>
> r5#
> *Mar 1 10:17:16.221: %OSPF-5-ADJCHG: Process 9, Nbr 3.3.3.3 on
> FastEthernet0/0
> from DOWN to DOWN, Neighbor Down: Ignore timer expired
> r5#
> *Mar 1 10:18:36.221: %OSPF-5-ADJCHG: Process 9, Nbr 3.3.3.3 on
> FastEthernet0/0
> from EXSTART to DOWN, Neighbor Down: Too many retransmitions
> r5#
> *Mar 1 10:19:36.221: %OSPF-5-ADJCHG: Process 9, Nbr 3.3.3.3 on
> FastEthernet0/0
> from DOWN to DOWN, Neighbor Down: Ignore timer expired
> r5#
> *Mar 1 10:20:56.221: %OSPF-5-ADJCHG: Process 9, Nbr 3.3.3.3 on
> FastEthernet0/0
> from EXSTART to DOWN, Neighbor Down: Too many retransmitions
> r5#
>
> --- Edward Monk <emonk@att.net> wrote:
> > I had a similar issue between my 2620 and a 2501 a few months back. What
> > I found was that everything was correct. How hard is establishing a
> > neighbor relationship in a broadcast type media anyway? I had no bad
> > hardware and all configurations were correct. I even tried setting my
> > OSPF to non-broadcast type and putting in neighbor commands. As I recall
> > it wouldn't work either.
> >
> > What I found was it was the IOS version in my 2501. It was a 12.0
> > version but I can't recall which one. I have since changed my IOS
> > versions all to 12.1.x and have never seen a repeat of the problem.
> >
> > Hopefully this helps.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Bauer, Rick
> > Sent: Wednesday, June 05, 2002 6:22 AM
> > To: 'Michael Breen'; Lab Candidate
> > Cc: ccielab@groupstudy.com
> > Subject: RE: OSPF neighbor problem
> >
> > So....Router-id would be the tie breaker. It is something else.
> >
> > -----Original Message-----
> > From: Michael Breen [mailto:mbreen@cisco.com]
> > Sent: Wednesday, June 05, 2002 8:26 AM
> > To: Lab Candidate
> > Cc: ccielab@groupstudy.com
> > Subject: RE: OSPF neighbor problem
> >
> >
> > Both routers have a priority of 1......
> >
> >
> > --MB
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Lab Candidate
> > Sent: Wednesday, June 05, 2002 2:24 AM
> > 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
> > 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
> >
> === message truncated ===
>
>



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