Michael, I do not understand why you are insisting on SHOULD? If IETF is not against having such MUSTs as in this case, let's have it. How can a revolutionary technology such as MIPv6 allow HA reverse tunneling like MIPv4 does? Another benefit will be to mandate HAO in any new implementations. Becasue of all these, I think that we should (or MUST) keep the MUST there, what the heck?
Regards, Michael Thomas wrote: >[EMAIL PROTECTED] writes: > > > Given that MIPv6 will interoperate without binding > > > code in CN's, it looks pretty much like a SHOULD > > > to me. Indeed, the protocol would not be robust if > > > it didn't consider the case of a non-conformant CN. > > > > I think we want to ask is, is it the right thing to do? For > > proper protocol functioning, will this lead to the correct > > behavior. If we think it is important, the MUST is OK. The > > spec does contain a mechanism to support existing implementations > > of IPv6, which means the protocol designers are doing their > > jobs. > > I think we're straying into a "good" as in > "good for the overall health of the Internet" > kind of good, rather than a "good" as in will > the protocol operate correctly. For the former, > I think you need to have extremely compelling > motivation, as well as a lot of evidence that > the health of the net will be imperiled if *all* > nodes don't implement a particular function, which > is what is at issue here. > > Frankly, I don't think that there is any evidence > that the net would be substantially harmed if RO > wasn't widely implemented and/or enabled. Indeed, > I think there's good reason to believe that many/most > nodes will not enable RO even if their kernel > implements it. In some cases, it's likely to be > a nice and useful optimization, but I really > don't see it as a "if we don't do this the net > will fall apart". As such, SHOULD seems like it > strikes the right balance. > > Mike > -- Behcet -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
