From: Todd, Douglas M. (DTODD@PARTNERS.ORG)
Date: Wed Feb 27 2008 - 23:20:44 ARST
Just a wild shot in the dark..
This may help with the answer:
http://tools.ietf.org/html/rfc3630 Section:2.1 and Maybe 2.5.1
2.1. LSA type
This extension makes use of the Opaque LSA [3].
Three types of Opaque LSAs exist, each of which has a different
flooding scope. This proposal uses only Type 10 LSAs, which have an
area flooding scope.
One new LSA is defined, the Traffic Engineering LSA. This LSA
describes routers, point-to-point links, and connections to multi-
access networks (similar to a Router LSA). For traffic engineering
purposes, the existing Network LSA is sufficient for describing
multi-access links, so no additional LSA is defined for this purpose
2.5. Sub-TLV Details
2.5.1. Link Type
The Link Type sub-TLV defines the type of the link:
1 - Point-to-point
2 - Multi-access
The Link Type sub-TLV is TLV type 1, and is one octet in length.
tu
________________________________
From: nobody@groupstudy.com on behalf of Rich Collins
Sent: Wed 2/27/2008 5:49 PM
To: Peter Svidler
Cc: ccielab@groupstudy.com
Subject: Re: multipoint non-broadcast ospf interface with MPLS TE
During my studies it always seemed as if the pt-multipt non-broadcast was
never used. Brian Dennis has a nice article about where you might need to
use it:
http://blog.internetworkexpert.com/2007/12/29/understanding-the-ospf-point-to-mu
ltipoint-non-broadcast-network-type/
Perhaps it has some relevance in your case?
-Rich
On Wed, Feb 27, 2008 at 4:19 PM, Peter Svidler <doubleccie@yahoo.com> wrote:
> folks
> I am practising IE lab 1 for service provider , one of the tasks was to
> stop any device on the vlan from listening to ospf between two routers
>
> by converting the interface types to non-broadcast on the routers , and
> configure them as neighbors , the routes moved fine between them
>
>
> however ; when i build Traffic Engineering tunnel for MPLS , the tunnel
> never goes up unless i changed the interface of the ospf from non-broadcast
> to multipoint non-broadcast
>
> now my question is , first what is the "multipoint non-broadcast "
> interface and how is that different from either multicast or non-broadcast
> alone .
>
> second , what is the effect of that on TE ?
>
> thanks
>
>
>
>
>
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