From: Lupi, Guy (Guy.Lupi@xxxxxxxxxxxxx)
Date: Wed Jun 05 2002 - 11:00:34 GMT-3
Are the routers directly connected by a cross over cable or do they go into
a switch? Have you checked duplex and speed settings (a stretch I know, but
I have seen stranger)? Remove all OSPF commands except the commands for
those 2 neighbors, just using the network command see if they become
adjacent.
*-----Original Message-----
*From: Michael Breen [mailto:mbreen@cisco.com]
*Sent: Wednesday, June 05, 2002 9:26 AM
*To: Lab Candidate
*Cc: ccielab@groupstudy.com
*Subject: RE: OSPF neighbor problem
*
*
*I need to actually wake up before I start troubleshooting OSPF
*and sending
*out emails...
*
*I don't think it's an MTU issue, you'd see that in the debug.
*DBDs are not
*getting across the link, the debug shows the router
*retransmitting the same
*DBD. It's also probably not a layer 2 issue because you wouldn't form
*neighbors.
*
*How long have you let it run? Have you tried reloading the
*routers? When in
*doubt, reload....
*
*--MB
*
*-----Original Message-----
*From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
*Michael Breen
*Sent: Wednesday, June 05, 2002 6:26 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={17F54
*ECB-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
*> >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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