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Hi,
few comments and questions on the DNAv6
draft.
1. In Section 3.2
".... In the case
when the landmark prefix is unknown to the responding
router, the host will receive a "No" answer to its landmark question, and also the information it needs to configure itself for the new link. The routers try to include as much information as possible in
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
such messages, so that the host can be informed of all the prefixes assigned to the new link as soon as possible." but as per section 5.1.5, DNAO for learned prefixes must
not be added in the unicast RAs.
i.e, we are not adding as much information as
possible.
2. While bootstrapping DNA data structures(section 5.1.3),
a) will the router reply for
RSs without landmark option (may be sent by other routers)
b) will the router reply for RSs
that contains landmark option (may be sent by DNA host)
3. While a router is in multicast sender state
(during 3 seconds), will it increase the token count or will it consider the
token count as MaxUnicastRABurst?
4. In section 5.2.4,
".....If the unicast Router Advertisement contains a Landmark option that matches the Landmark Option in the last transmitted Router Solicitation ....." Is a case where, a unicast router advertisement comes
without landmark option is possible? (DNA routers which are
bootstrapping may just send RA) If possible, some text which tells what
to do in such cases may need to be added.
5. To deal with amplification effect, what about having a
threshold on number of routers sending fast RA? For example, only first 5
routers (as per the fast RA rankings) only will reply for RSs (in addition to
the method specified in the draft)
Here are some typo errors
1. In section 5.1.1
" The routers maintain a set of conceptual
data structures for each
interface to track the prefixes advertised by other routers on the link, and also the set of DNA routers (the routers that will quickly respond to RAs) on the link. For each interface, routers maintain a ^^^^^^^^^^^^^^^^ list of all prefixes
advertised on the link. The list will be
referred to in this document as "DNAPrefixList". For each prefix the router MUST store the following information:" I think it is either "the routers that will quickly respond with RAs" or "the routers that will quickly respond to
RSs"
2. In section 5.1.4
" When a router receives a Router
Advertisement, it first validates the
RA per the rules in RFC 2461, and then performs the actions specified ^^^^^^^^
in RFC 2461." "RA as per"
Thanks & Regards,
Subba Reddy
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