[c-nsp] MPLS L3VPN w/ OSPF PE-CE

[Manu Chao]

 DN bit is not part of OSPF v2 rfc then the "MUST" is the "DEFAULT"

Why not just using RT to control your L3VPN? Do you need DN bit?

On Mon, Jun 22, 2009 at 9:36 PM, Peter Rathlev <peter at rathlev.dk> wrote:

> Hi,
>
> We're about to expand our use of OSPF PE-CE connections in some
> redundant setups, and in that regard I'd be happy to know more precisely
> if I can expect all (most) customer devices to repect the DN bit.
>
> As I understand OSPF, all customer routers should just not care about
> the DN bit in all LSAs but of course propagate it. From skimming RFC2328
> I can't seem to find the place where it says the "MUST" preserve all
> option bits, which I guess would also exclude what a PE does according
> to RFC4576.
>
> I might just lack a general understanding of OSPF, but I'd hate to run
> into some specific software/hardware version of something and not know
> what's happening. So far it "just worked" where we've used it, but if
> anybody can share any experiences regarding this I'd love to know. :-)
>
>
> Regards,
> Peter
>
>
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