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Some comments about draft-arkko-multi6dt-failure-detection-00.txt:
- in the intro a missing < before xref target='transport'/>
- in 3.1 link-local IPv6 addresses, private (RFC 1918) IPv4 addresses,
etc, are excluded. IMHO this is a too strong constraint: only
ambiguous zone limited addresses should be excluded (note that
one (only) address cannot be ambiguous).
- in 3.2 s/the relevant default router/a relevant default router/
(links in a resilient multi-homed environment should be served
by more than one default router :-)
- in 3.2 "Theoretically, it is also
possible for hosts to learn about routing failures for a particular
selected source prefix, even if no protocol exists today to
distribute this information in a convenient manner."
I disagree about the last part: there is a well known and simple
protocol to announce routing failures for a source prefix: deprecate
it, i.e., send RAs with zero preferred lifetime in the prefix info.