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

Hi Alex,

One quick comment inline.

[cut]
> >> One very important part in Section 4, giving indication to which
> >> specific part to use when putting IPv6 packets on 802.16 MAC (ETHCS
> >>  or IPv6CS?) is left implementation-dependent (who implements that?
> >>  how?) - is there an RA-overIPv6CS enhancement that says use ETHCS
> >> vs use IPv6CS.
> >
> > As I said IPv6 can be run over 802.3 (which runs on the EthCS) or
> > directly over the IPv6 CS. The choice depends on the host. The
> > clarification that has been put in is the fact that the network will
> > need to support both. And that is sufficient.
>
> How does the network 'support' both?  How does the network switch
> between the two modes?  That is left implementation-dependent.  Or this
> implementation should follow this spec.

Network supporting both Eth CS and IP Cs is like having two different
mechanisms for accessing the network. It is like a router supporting
two different PHY interfaces.

An IP CS only MS cannot interwork with Eth CS only BS and vice versa..

An MS that has support for both Eth CS and IP CS, and wants switch,
it has to do the vertical handoff.

>
> Constructive comment: the spec could specify a means in an ICMPv6
> message enhancement to change between the modes.  I suggest one bit only.
>

I do not see any need for this.

Thanks,
Syam

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