[RRG] RE: Feasibility of transport based approaches?

[Randall Atkinson <rja@extremenetworks.com>]

% How is the number of the routing entries going to be decreased
% with transport level solution?
%
%  I can clearly see that multihoming is be solved but not the
% primary goal of scalability. Any thoughts?

At present, most of the scalability issue with the routing system is
CREATED  by the extra more-specific prefixes that are carried in the
DFZ to enable site multii-homing.[1]

So any multi-homing approach that does NOT require those
more-specific prefixes to continue within the DFZ *greatly* improves
the scalability of the DFZ routing system.

So a transport-based approach, which you agree can solve the
multi-homing issue, obviously therefore CAN greatly improve
the scalability of the deploying routing system.

Separately, the Routing RG charter does not list "scalability" as
THE primary goal.  Instead, the charter is clear that there are several
equally weighted goals, including but not limited to scalability and
multi-homing.  For example, the charter lists "mobility" as a goal
equal with those first two.

Yours,

Ran Atkinson
rja@extremenetworks.com

[1] There are some other reasons that a few of the more specific
prefixes might exist.  However, published analyses of the actual routing
tables indicate those other reasons are NOT a major source of
DFZ RIB/FIB entropy at present.



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