Christian Huitema wrote:
> 4 Deprecationprefix
>
> This document formally deprecates the IPv6 site-local unicast
> defined in [RFC3513], i.e. 1111111011 binary or FEC0::/10.
I think this section is not ready yet. Couple comments:
1) This is not the IETF job to mandate what an implemention choose
to support or not.
Sure. An implementation may choose to give a special meaning to a special prefix, say "DEAD:BEEF::/32", and the IETF cannot do anything about it. However, the whole purpose of the deprecation draft is, well, to deprecate site local addresses. These addresses use to have a special meaning, an expectation that they can only reach "on site" nodes. The special meaning is not supported any more. Applications must not expect it to be supported. Do you have an alternative writing?
2) What constitute a "new implementation"?fundamentally
For example, we shipped IPv6 in Solaris 8. Same bits plus extra
features in Solaris 9, more coming in newer relases, but
the same code fundation. Would Solaris 10, 11, 12, 13, 14....
or what ever new name we come up with be considered as "new
implemtations"?
This is confusing...
Alternative text for "new implementation" would be welcome. I guess that
the intent is clear.
Suggested text to address both comments:
replace:
"The special behavior of this prefix MUST no longer be supported in new implementations."
by
"The special behavior of this prefix MUST no longer be supported."
3) What does section 4 exactly means with regard to default address
selection RFC3484?
Does this obsolete the rules about scope?
Well, we still have link local scope, so there is still that. Do you suggest that we write a line for each of the RFC that currently mention site local and explain how to change them?
Precisely. There are not that many of them. If you go through the archives, you'll find a post where I made the list of places that either mentioned FECO:: or site local. Or a simple grep in the RFC pages will do.
- Alain.
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