RE: Weird problem with OSPF

From: Scott Morris (swm@emanon.com)
Date: Fri Sep 01 2006 - 10:48:08 ART


Well, if nothing else changed there... It's likely a bug. Happens now and
then!
 
Re-add your neighbors and move from there. it's one of those irritating
features that sometimes happens!
 
By the way, since you show a BDR there, I don't think all your spokes are
set with priority 0 like you mentioned!
 
HTH,
 
 
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPExpert VP - Curriculum Development
IPExpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com
 

  _____

From: Aamir Aziz [mailto:aamiraz77@gmail.com]
Sent: Friday, September 01, 2006 9:42 AM
To: swm@emanon.com
Cc: ccielab@groupstudy.com
Subject: Re: Weird problem with OSPF

Hi,
 
This is the output:
 
R5#sh ip ospf interface s0/0.235

Serial0/0.235 is up, line protocol is up
  Internet Address 1.1.235.5/24, Area 0
  Process ID 1, Router ID 1.1.5.5, Network Type NON_BROADCAST, Cost: 64
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 1.1.5.5, Interface address 1.1.235.5
  Backup Designated router (ID) 1.1.3.3, Interface address 1.1.235.3
  Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    oob-resync timeout 120
    Hello due in 00:00:09
  Supports Link-local Signaling (LLS)
  Index 3/5, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 1
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 1.1.3.3 (Backup Designated Router)
  Suppress hello for 0 neighbor(s)
 

R5#sh run int s0/0.235
Building configuration...

Current configuration : 166 bytes
!
interface Serial0/0.235 multipoint
 ip address 1.1.235.5 255.255.255.0
 frame-relay map ip 1.1.235.2 502 broadcast
 frame-relay map ip 1.1.235.3 503 broadcast

router ospf 1
 router-id 1.1.5.5
 log-adjacency-changes
 network 1.1.5.5 0.0.0.0 area 0
 network 1.1.235.5 0.0.0.0 area 0
 
As you can see the neighbor command is gone in OSPF when I reload why why??
 
thanks
Aamir

 
On 9/1/06, Scott Morris <swm@emanon.com> wrote:

Did you change anything else? Try looking at "show ip ospf interface
s0/0.235" and what does it tell you? Or "show run int s0/0.235" to see what

may have been put in there to change things.

HTH,

Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPExpert VP - Curriculum Development
IPExpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Aamir Aziz
Sent: Friday, September 01, 2006 8:57 AM
To: ccielab@groupstudy.com <mailto:ccielab@groupstudy.com>
Subject: Weird problem with OSPF

HI there ppl,

I have a hub and spoke environment like this R2-------R5-------R3,

R5 is the hub with s0/0.235 multipoint interface meaning by default NBMA
mode, which requires neighbor command on R5 but when i reboot R5 i get this
error :

OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint
networks
OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint
networks

and the neighbor command is no longer there in OSPF of R5, what is happening

here?? i have given ip ospf priority 0 on R2 and R3 to R5 as DR

Thanks
Aamir



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