RE: OSPF Weird Issue

Hi Freak

Can You Copy and paste the network diagram using paint i personally think this
is not big issue.... there is little bit is missing
Thanks

> Date: Mon, 13 Jun 2011 15:26:05 +0530
> Subject: Re: OSPF Weird Issue
> From: routingfreak_at_gmail.com
> To: roykhan123_at_hotmail.com
> CC: ccielab_at_groupstudy.com
>
> Hey Roy
> Here it is not Hub n spoke network.Just 4 routers are in Non broadcast
> domain and each has frame relay mapping statement to each other .So there
is
> no problem of reachability .And also there is no invere arp problem ,
> because i disabled the inverse arp also.Still the problem presists
>
> I dont have the configs file
> I just didnt save my configs
> Just try to do a NBMA network in OSPF
>
>
> On Mon, Jun 13, 2011 at 2:50 PM, Roy Khan <roykhan123_at_hotmail.com> wrote:
>
> >
> > Hi
> >
> > NBMA mode send hello as unicast and it need the neighbor statement and
also
> > perform DR/BDR election.
> > also it require layer 3 to layer 2 resolution in FR.
> > Configure the DR which have full connectivity to the others routers in
your
> > case it should me hub. the spoke cannt be
> > DR becuase it does not have full layer 2 connectivity with each other.
manually
> > set the OSPF pri to zero.
> > Disable inverse arp in FR. and also HUB have to FR statement point to the
> > spoke and spoke point to hub
> > first configure the FR and check and test and then configure the OSPF.
> >
> > > Date: Mon, 13 Jun 2011 11:28:29 +0530
> > > Subject: OSPF Weird Issue
> > > From: routingfreak_at_gmail.com
> > > To: ccielab_at_groupstudy.com
> >
> > >
> > > Hi all
> > > I got this log message when i m doing OSPF labs
> > >
> > > Consider a fully-meshed frame-relay network with three routers. The
three
> > > routers are connected to the the frame relay cloud with the IP
addresses
> > > 10.10.10.1, 10.10.10.2 and 10.10.10.3 respectively. However, the
neighbor
> > > relationship on all the routers constantly keeps getting reset with
> > messages
> > > like the following -
> > >
> > >
> > > *Mar 4 16:10:01.333: %OSPF-5-ADJCHG: Process 100, Nbr 10.10.10.3 on
> > > Serial2 from LOADING to FULL, Loading Done
> > > *Mar 4 16:10:05.261: %OSPF-5-ADJCHG: Process 100, Nbr 10.10.10.3 on
> > > Serial2 from FULL to DOWN, Neighbor Down: Adjacency forced to reset
> > > *Mar 4 16:10:05.521: %OSPF-4-NONEIGHBOR: Received database
> > > description from unknown neighbor 10.10.10.3
> > > *Mar 4 16:10:08.813: %OSPF-5-ADJCHG: Process 100, Nbr 10.10.10.2 on
> > > Serial2 from EXSTART to DOWN, Neighbor Down: Adjacency forced to reset
> > > *Mar 4 16:10:11.485: %OSPF-4-NONEIGHBOR: Received database
> > > description from unknown neighbor 10.10.10.2
> > > *Mar 4 16:10:12.593: %OSPF-5-ADJCHG: Process 100, Nbr 10.10.10.3 on
> > > Serial2 from LOADING to FULL, Loading Done
> > > *Mar 4 16:10:14.905: %OSPF-5-ADJCHG: Process 100, Nbr 10.10.10.3 on
> > > Serial2 from FULL to DOWN, Neighbor Down: Adjacency forced to reset
> > > *Mar 4 16:10:19.013: %OSPF-5-ADJCHG: Process 100, Nbr 10.10.10.2 on
> > > Serial2 from EXCHANGE to DOWN, Neighbor Down: Adjacency forced to
> > > reset
> > >
> > >
> > > Given just this information, can you determine what the problem might
be
> > > here?
> > >
> > > What is meant by OSPF NonNeighbor and unknown neighbor?
> > >
> > >
> > > Blogs and organic groups at http://www.ccie.net
> > >
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>
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Received on Mon Jun 13 2011 - 17:06:08 ART