Re: Detecting inactive neighbors over demand circuit

Acee Lindem <acee@REDBACK.COM> Wed, 18 August 2004 21:02 UTC

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Date: Wed, 18 Aug 2004 17:02:29 -0400
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From: Acee Lindem <acee@REDBACK.COM>
Subject: Re: Detecting inactive neighbors over demand circuit
To: OSPF@PEACH.EASE.LSOFT.COM
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Hi Anu,
The draft doesn't specify that you have to use a router LSA, it simply uses
it as an example (draft-ietf-ospf-dc-07.txt). Also note
that link LSAs are not flooded over virtual links (which are demand
circuits by default). Having said that, a link LSA would seem like a good
choice for probing on a non-virtual OSPFv3 interface.

Note that this draft has been around for quite some time and is currently
in the RFC editor's queue.

Thanks,
Acee
----- Original Message -----
From: "armstrong mathiayalagan" <arms@YOURS.COM>
To: <OSPF@PEACH.EASE.LSOFT.COM>
Sent: Monday, August 09, 2004 10:02 AM
Subject: Detecting inactive neighbors over demand circuit


> Hi,
>         This draft recommends (May clause) Router LSA to be flooded for Neighbor
> probing.
>         With respect to the applicability of this draft to OSPFv3, I feel Link LSA
> is a good choice for using in neighbor probing than Router LSA.
>         In Demand Circuit, there are more chances for having LSAs of different
> sequence number at both ends.
>         If neighbor probing uses Router LSA, if the Router LSA is having higher
> sequence number than the neighbors database, then the neighbor will flood
> these LSA in all the non demand circuit interface. This can be avoided by
> using Link LSA.
>         Comments are welcome.
>
> Regards,
> Anu
> --
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