Re: OSPF neighbor on non-broadcast OSPF network type

Yes Its true that router will form neighborship in the case of one side ospf
network broadcast and other side as Non_broadcast with adjusting timers
....as Broadcast side router will intiate neighborship process.
But its strange to knw that Both sides are non-broadcast and still you are
able to see ospf neighbor on it.

Neighbors are discovered using multicast hello packets.successful neighbor
discovery on a segment, the network must allow broadcasts or multicast
packets to be sent.

Kindly confirm your layer 2 configuration .....can you paste your config
here to verify ???

*Rsharma*

On Mon, May 25, 2009 at 4:27 AM, Anantha Subramanian Natarajan <
anantha.natarajan_at_gravitant.com> wrote:

> Hi Divin,
>
> Both sides were non-broadcast
>
> Thanks
>
> Regards
> Anantha Subramanian Natarajan
>
> On Sun, May 24, 2009 at 5:08 PM, Divin Mathew John <divinjohn_at_gmail.com
> >wrote:
>
> > Broadcast and NBMA there wont be any nieghbourship formed due to timer
> > mismatch by default.. you could tweak the timers and get it working.!
> > Thanking You
> >
> > Yours Sincerely
> >
> > Divin Mathew John
> > divinjohn_at_gmail.com
> > divin_at_dide3d.com
> > http://www.dide3d.com
> > +91 9945430983
> > +91 9846697191
> > +974 5008916
> > PGP PUBLIC KEY BLOCK @ http://www.dide3d.com/divin_Public_PGP_key.txt
> > Sent from Bangalore, KA, India
> >
> > On Mon, May 25, 2009 at 3:38 AM, Santiago Enciso <
> > senciso_at_infocenter.com.py> wrote:
> >
> >> Did the adjacency reached the full state?
> >> Were both sides non-broadcast? BCAST and NBCAST are compatible network
> >> types.
> >>
> >> Santiago E
> >>
> >> -----Mensaje original-----
> >> De: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] En nombre de
> >> Anantha Subramanian Natarajan
> >> Enviado el: Domingo, 24 de Mayo de 2009 15:09
> >> Para: hanan; Cisco certification
> >> Asunto: Re: OSPF neighbor on non-broadcast OSPF network type
> >>
> >> Hi Hanan,
> >>
> >> Thanks and will try that.
> >>
> >> Regards
> >> Anantha Subramanian Natarajan
> >>
> >> On Sun, May 24, 2009 at 1:47 PM, hanan <nouran_at_skynet.be> wrote:
> >>
> >> > Hi
> >> >
> >> > Its happen to me once and i didn't understand why but if you save
> >> > configuration and reload the routers you will not have any neighbour
> >> > anymore
> >> > unless you put neighbour command.
> >> >
> >> >
> >> > Regards
> >> >
> >> >
> >> >
> >> > -----Original Message-----
> >> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
> Of
> >> > Anantha Subramanian Natarajan
> >> > Sent: Sunday, May 24, 2009 8:25 PM
> >> > To: Cisco certification
> >> > Subject: OSPF neighbor on non-broadcast OSPF network type
> >> >
> >> > Hi All,
> >> >
> >> > I ran OSPF on an non-broadcast OSPF network type between R1 and R2
> and
> >> > saw the neighbor came up without configuring explicitly "neighbor "
> >> command
> >> > under the OSPF process.I was assuming the neighbor command is
> >> > required.Kindly let me know on this and also if missed some basic on
> it.
> >> >
> >> > Thanks
> >> >
> >> > Regards
> >> > Anantha Subramanian Natarajan
> >> >
> >> >
> >> > Blogs and organic groups at http://www.ccie.net
> >> >
> >> >
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Received on Mon May 25 2009 - 04:40:41 ART