From: Niche (jackyliu419@gmail.com)
Date: Fri Sep 23 2005 - 12:35:50 GMT-3
Hi,
Virtual is always the first option if area 1 is not stub or nssa, just IMHO.
As Jian Gu said, create additional subnet to entertain this question may not
be allowed in lab general rule. Also, I feel why not keep the thing simpler
when you can... for the sake of troubleshooting complexity (when you need).
Just my 2 cents.
Cheers~
Jacky
On 9/23/05, Jian Gu <guxiaojian@gmail.com> wrote:
>
> GRE tunnel will always work but you will need to advertise extra network
> which might not be allowed in the real lab.
>
> On 9/23/05, Imal kalutotage <imal.kalutotage@gmail.com> wrote:
> >
> > Hi Group,
> > I also have a similar question..
> >
> > If we have a senario like this
> >
> > -----------FR ---R3--eth----Cat3550----eth-----R1--------
> > Area 0 area 1 area2
> >
> > R3 is the ABR which connects to the area 0 & area 1.
> > R1 is the ABR which connects to the area 1 & area 2
> >
> > Cat 3350 both svi interfaces are in area 1.
> >
> > So we need to create a virtual link or tunnel to connect the area 2 to
> the
> > backbone area.
> >
> > In this case whcih method is prefered? Tunnel or the Virtual-link
> >
> >
> > Cheers,
> > Imal
> >
> >
> > On 9/23/05, Jian Gu <guxiaojian@gmail.com> wrote:
> > >
> > > Meant to say that two ABRs have to have direct L2 connection,
> otherwise
> > > OSPF
> > > packets would have been comsumed by transit routers.
> > >
> > > On 9/23/05, Jian Gu <guxiaojian@gmail.com > wrote:
> > > >
> > > > Hi, all,
> > > >
> > > > Quick question, an OSPF virtual link has to be established between
> two
> > > > ABRs, do the two ABRs have to have a direct L2 connection? (direct
> L2
> > > > connection meaning on one Ethernet segement, physical serial link or
> > > have a
> > > > frame-relay P2P broadcast PVC). I would say no, because all
> > > > multicast OSPF packets would be consumed by transit routers. Better
> > > > explanation anyone?
> > >
> > >
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