Snipped
> >
> >That sounds suspiciously like an assertion. I have heard anecdotal
> >accounts of very substantial SONET networks.
>
> My experience is that "substantial" in transport terms is minuscule
> in Internet terms. Every case that I know of, and anyone I've had
> contact with, share my view of scale. If someone can talk from
> direct experience (either their's or their customer's) it would be
> helpful.
Between O(10**4) and O(10**5) nodes
>
> > > Also, most (actually, I
> > > think it is all) of these L1 networks do not run BGP
> > > and have no intention of running BGP.
> >
> >You shouldn't be speaking for these operators. The few operators
that I
> >recall expressing an opinion didn't seem to mind running BGP.
>
> I agree that hearing from the folks that operate *transport* networks
> would be of huge value. Unfortunately, they typically don't show at
> IETF. There actually was someone from such a group at the last
> meeting who came up to me after the meeting and stated the (1) they
> would only do OSPF and (2) that they would need a multi-area support
> in the OSPF solution. I asked him if he'd post his opinion on the
> list and he said he would, unfortunately we haven't seen this mail
> and I didn't take down his name. Sigh...
Unless I am mistaken, it seems that you are asking the working group to
trust you to interpret the requirements of the carriers wishing to offer
L1VPN services.
>
> > > Furthermore, the sole purpose for running
> > > BGP would be to support L1VPNs. BGP isn't something that is
already
> > > present to be leveraged.
> >
> >I think the real point is a technology issue rather than a deployment
> >issue. BGP is a proven technology for auto-discovery and an IGP is
not.
>
> Are you suggesting that automatic discovery of information doesn't
> work in IGPs? I humbly submit that you are mistaken.
BGP is a proven technology for VPN auto-discovery, the topic of this
^^^
discussion.
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