----- Original Message -----
Sent: Friday, July 25, 2003 7:25 PM
Subject: RE: [MPLS-OPS]: OSPF and no area
0
No suck link.
-----Original Message-----
From:
Strahler, Carsten [mailto:Carsten.Strahler@lambdanet.net]
Sent: 25 July 2003 14:39
To:
'Alok Dube'; mpls-ops@mplsrc.com
Subject: AW: [MPLS-OPS]: OSPF and no area 0
Hi Alok,
it is recommend but not necessary to have an area 0.
Have a look at
http://www.ietf.cnri.reston.va.us/internet-drafts/draft-rosen-vpns-ospf-bgp-
mpls-06.txt
to get an better
impression about the problems of OSPF
in a MPLS-VPN
environment.
regards
------------------------------------------------------------
Carsten Strahler
IP Planning
Lambdanet Communications Deutschland AG (AS 13237)
Guenther-Wagner-Allee 13
D-30177
Hannover (Germany)
Phone +49 (0)511 / 84 88 12 57
Mobile +49 (0)173 / 629 1257
Fax +49 (0)511 / 84 88 12 59
mailto:carsten.strahler@lambdanet.net
web: www.lambdanet.net
-----------------------------------------------------------
> -----Ursprungliche Nachricht-----
> Von: Alok Dube [mailto:alokdube1978@rediffmail.com]
> Gesendet: Freitag, 25. Juli 2003 09:15
> An: mpls-ops@mplsrc.com
> Betreff:
[MPLS-OPS]: OSPF and no area 0
>
>
> Hi,
>
>
> a. There is an MPLS
VPN network.
>
> b. The
customers may wish to run IGP as OSPF
>
> c. The typical problem in such a scenario is the
"Area 0" will be
> the "spoke" of the customer's
network.? It is my understanding
> that everything
would go to Area 0 and then to other areas, is
>
this correct?
>
> d.
Would it be possible to not have an "area0" in the whole VPN
> for the customer? but stillhave individual areas in OSPF?
>
> e. my knowledge of ISIS is
less,but i assume area0 <->level 2 in
> ISIS.
Is it possible to have a topology with no level 2 but only
> level -1 areas/rings for the customers?
>
> the information across the OSPF/ISIS
Areas on different parts of
> the VPN would be
carried by MPBGP.
>
> Is
this how it is currently done? or do we still have an area
> 0/level-2 area?
>
> would appreciate some clarification..
>
-thanks
> Alok
>
>
>
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