From: Michael Breen (mbreen@xxxxxxxxx)
Date: Wed Jun 05 2002 - 10:25:39 GMT-3
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={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
> >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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