Hi Brian,
Brian E Carpenter schrieb:
On 2009-12-15 05:20, Tony Li wrote:
Michael Menth wrote:
Hi Lixia,
do mapping systems also belong to the discussed proposals? I assume
they do not although a lot of the complexity taken out of the routing
is put into them? If I am wrong, I would like to add FIRMS to the list
of discussed proposals:
http://www3.informatik.uni-wuerzburg.de/~menth/Publications/papers/Menth09-FIRMS.pdf
Michael,
Mapping systems are obviously a component of a solution but are not by
themselves a solution. To be considered seriously, they should be used
in conjunction with some network layer solution.
Hmm. Don't you think that to some extent these should be orthogonal?
A mapping mechanism needs to meet the specific requirements of a network
layer mechanism, but that doesn't require the two to be irrevocably
bound to each other.
I have a feeling that the mapping system should be very general in
nature, in case the first cut at either the locator or identifier space
proves to fall short. Also I feel it should support hierarchy, even if
we don't need a hierarchy from the start.
Brian
I absolutely agree. However, I see two basically different cases:
a) mapping lookup performed only by hosts
b) mapping lookup performed also by intermediate nodes
In case of a), the mapping lookup must be fast but not very fast. DNS
would certainly do. In case of b), the mapping lookup must be very fast
because intermediate nodes need to store/drop/relay packets without
locators and the time span for that should be minimized. In addition, a
relaying function is possibly of interest to avoid extensive packet
delay and loss which is not necessary for a). Hence, designing a mapping
system for b) is more challenging than for a).
Security and scalability are general requirements for all mapping systems.
Best wishes,
Michael
--
Dr. Michael Menth, Assistant Professor
University of Wuerzburg, Institute of Computer Science
Am Hubland, D-97074 Wuerzburg, Germany, room B206
phone: (+49)-931/31-86644 (new), fax: (+49)-931/888-6632
mailto:[email protected]
http://www3.informatik.uni-wuerzburg.de/research/ngn
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