Re: Unnumbered and tunnel interfaces in OSPFv3

[Acee Lindem <acee at REDBACK.COM>]

Hi Nic,

----- Original Message -----
From: "Nic Neate" <Nic.Neate at DATACONNECTION.COM>
To: <OSPF at PEACH.EASE.LSOFT.COM>
Sent: Thursday, September 02, 2004 10:55 AM
Subject: Unnumbered and tunnel interfaces in OSPFv3


> Hi all,
>
> I have a few OSPFv3 questions I was hoping someone could help me with.
>
> 1.  Is there any concept of an unnumbered interface in OSPFv3?  (As far as I
> can see from RFC 2740, there isn't.)

Since OSPFv3 runs on a link rather than a subnet, there should be fewer
considerations.

>
> 2.  If yes, how do they work?  I would guess most principles from OSPFv2 can
> be carried over, but what about usage of the Link-LSA?

It seems that it could be suppressed for unnumbered LSAs. In fact, it has crossed
my mind that they could be suppressed for all OSPFv3 P2P links. At least in our
implementation, we don't need to discover the link local address and any prefixes
associated with the link are advertised in one of the router intra-area-prefix LSAs.


>
> 3.  If not, are there any guidelines on how, for example, RSVP tunnel
> interfaces should be handled?

I would think this would be transparent to OSPFv3.

>
> Thanks in advance,
>
> Nic