From: Paglia, John (USPC.PCT.Hopewell) (JPaglia@xxxxxxxxxxxxx)
Date: Fri Aug 02 2002 - 18:30:54 GMT-3
Fine and well, but just to clarify, it's just as david said...it all depends
on the word "valid". You will never fins a "valid" ospf configuration that
does not employ area 0.
I guess I'll change my answer to say both are correct, but with a footnote
stating that the chances of finding a valid ospf design without an area 0,
even in a single area situation, are extremely slim.
Pags
> -----Original Message-----
> From: Leigh Anne Chisholm [SMTP:lac@applieddesign.net]
> Sent: Friday, August 02, 2002 5:10 PM
> To: Paglia, John (USPC.PCT.Hopewell); 'Asim Khan';
> ccielab@groupstudy.com
> Subject: RE: Area 0
>
> If you have more than one area, you must have an area 0 as a backbone
> area.
> If you have a network with only one area, it can be any valid area
> integer.
>
> I thought it funky when I first read Doyle's statement, so I tried it out
> and
> OSPF works just fine in a single-area non-area-zero network.
>
> What you need to consider, is whether you'll ever (through mergers,
> acquisitions, corporate growth, network design requirements, etc.) have
> need
> for a second area. If you may, area 0 is a smart choice for your
> single-area
> network.
>
>
> -- Leigh Anne
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Paglia, John (USPC.PCT.Hopewell)
> > Sent: Friday, August 02, 2002 2:28 PM
> > To: 'Asim Khan'; ccielab@groupstudy.com
> > Subject: RE: Area 0
> >
> >
> > You absolutely have to have an area 0.
> >
> > Pags
> >
> > > -----Original Message-----
> > > From: Asim Khan [SMTP:asimmegawatt@yahoo.com]
> > > Sent: Friday, August 02, 2002 3:38 PM
> > > To: ccielab@groupstudy.com
> > > Subject: Area 0
> > >
> > > Hi All,
> > >
> > > I have a quick question, while reading Bruce Caslow I
> > > came across the following statement (page 387)
> > > "Every valid OSPF configuration must have an area 0,
> > > so if you use only single OSPF area for your entire
> > > network, it must be area 0".
> > >
> > > Whereas in Jeff Doyle volume 1 on page 517, it is
> > > written that "Single area does not have to be area 0".
> > >
> > > So which one is correct?
> > >
> > > Regards.
> > >
> > > Asim Khan
> > >
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