Re: some thoughts on IPv6-over-IPv6CS (was: [16NG] Re: review of the new revision (ipv6 over ipcs))

Dear Alex

Kindly find my in-line comments.

> >>> IEEE 802.16 also defines a secondary management connection that
> >>> can be used for host configuration.  However support for
> >>> secondary management connections is not mandatory.  A transport
> >>> connection has the advantage of it being used for host
> >>> configuration as well as for user data.
> >> Are you specifying something about the use of the management
> >> connections? If not, take it out.
> >>
> >
> > Not really specifying anything w.r.t the management connection. This
> >  came up during discussion with Alex Petrescu and I added it just for
> >  the sake of completeness. Within the scope of this I-D, the
> > management connection has no relevance. I can take it out.
>
> Yes, the issue is that 802.16 recommends the RS/RA to happen on a
> Secondary Management Connection (instead of on a Transport Connection).
>  Clarifications on the list suggested that probably nobody uses a SMC.
> But that doesn't mean that the IEEE spec isn't saying so.

As of my knowledge, 802.16 doesn't mandate which connection to use for RS/RA.

Actually in the beginning of IPv6 over 802.16 IP CS work, we gave much
thought on which connection to use for Neighbor Discovery messages
such as RS/ RA or NS/ NA. (because those messages can carry multicast
destination address and unspecified source address, special features
are required for the connection.)

Unfortunately 802.16 spec is not perfectly clear about this. While
there are a few vague statements which may be interpreted to recommend
the Secondary Management Connection, upon discussing with 802.16 &
WiMAX people, we found out that neither the statements were written
with that intention nor the actual 802.16 SS and BS were implemented
that way. Transport Connection (especially Initial Service Flow for
WiMAX case) is universally agreed as long as our experience &
knowledge goes. If there is something missing or wrong, kindly let me
know.

Thanks for your kind consideration.

Best Regards

JinHyeock

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