The problem with variable-length addressing that, in practice, one needs
to specify a maximum length.
In some practical terms, perhaps, but there are extensibility schemes that
allow the payload (addressing bits, in this case, to go on forever, in
theoretical terms.
I look forward to your design for a forwarding plane based on streaming
addresses :)
Does anyone really think that we'll need more than 128 bits?
--Richard
The result, therefore, is that you don't
have variable-length addresses at all but rather fixed-length addresses
with a shorthand encoding for unused bits.
For most variable-length schemes, yes, but not all.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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