Re: [Idr] Progressing draft-bhatia-bgp-multiple-next-hops-01.txt

["John G. Scudder" <jgs at cisco.com>]

At 5:01 PM -0400 8/24/06, Joel M. Halpern wrote:
> I would not have raised elegance and simplicity as issues, except 
> that Mr. Chen chose to assert thoser properties for his solution.

OK.  And I'm suggesting to all concerned that assertions of elegance, 
simplicity, etc, are not likely to lead to productive discussion.

> As for choosing the identifiers, part of the problem is that in fact 
> several of the proposed techniques (such as using the router-ID of 
> the router you receive the advertisement from) will not work.

I beg to differ, with one caveat: I see that at least the -05 
add-path draft doesn't mention that the path identifier is a 
per-connection value (really, it can be per-speaker, the point is 
that it may be regenenerated by anyone who advertises the route).  As 
long as that's understood (and I hope it'll be fixed in -06), then 
any algorithm whatsoever that ensures uniqueness in the local context 
will work just fine.

> The other aspect is that introducing a new identifier shared between 
> communicating devices is natural for certain architectures, but not 
> particularly natural for others.

I really don't understand this point.

--John

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