Re: OSPF Summarization

yes Ryan they should by in the same area so one single prefix will be
advertised to the other area, areas!

also should be in the ABR
On Tue, Apr 14, 2009 at 10:04 PM, Ryan West <rwest_at_zyedge.com> wrote:

> I would like for someone to comment on this too, I feel a little green in
> this area. Here is my understanding though, you can only summarize with the
> range command for common area's. Area 0 for example cannot summarize for
> area 1 and 2.
>
> So..
> 1) yes they should belong to the same area
> 2) no, it will not and this applies to ipv6 as well.
>
> -ryan
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Naveen
> Sent: Tuesday, April 14, 2009 2:56 PM
> To: Divin Mathew John
> Cc: Salah ElShekeil; Paul Adams; Cisco certification
> Subject: Re: OSPF Summarization
>
> Group,
>
> Am a little lost with the "area range" command. When the cmd is specified
> under OSPF on an ABR -
>
> 1) Should the individual prefixes all belong to the same area ?
> 2) What happens if ABR summarizes prefixes belonging to different area ?
>
> -Naveen.
>
>
>
>
> On Tue, Apr 14, 2009 at 11:42 AM, Divin Mathew John <divinjohn_at_gmail.com
> >wrote:
>
> > Salah is more specfic. i kinda did the broad summarize.! do the specific
> > one!
> > 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 Wed, Apr 15, 2009 at 12:09 AM, Salah ElShekeil
> > <salah.elshekeil_at_gmail.com> wrote:
> > > area XX range 10.80.22.0 255.255.192.0
> > >
> > >
> > > try it
> > >
> > > HTH
> > >
> > > Salah
> > >
> > > On Tue, Apr 14, 2009 at 9:34 PM, Paul Adams <ccie.paul_at_gmail.com>
> wrote:
> > >
> > >> Hi GS,
> > >>
> > >> Perform OSPF Summarization
> > >>
> > >> L22 = 10.80.22.1/24
> > >> L32 = 10.80.32.1/24
> > >> L47 = 10.80.47.1/24
> > >>
> > >> show these routes as one....other routers should see them as single
> > >> routes..
> > >>
> > >> can someone check if the solution is correct
> > >>
> > >> (ANS)
> > >>
> > >> //summarized routes in ospf
> > >> router ospf 1
> > >> network 10.80.60.1 0.0.0.0 area 0
> > >>
> > >> <R1>
> > >> area 10 range 10.80.0.0 255.255.255.0
> > >>
> > >>
> > >> Blogs and organic groups at http://www.ccie.net
> > >>
> > >>
> _______________________________________________________________________
> > >> Subscription information may be found at:
> > >> http://www.groupstudy.com/list/CCIELab.html
> > >
> > >
> > > Blogs and organic groups at http://www.ccie.net
> > >
> > > _______________________________________________________________________
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Tue Apr 14 2009 - 22:07:26 ART