>> Title >> ===== >> The document should be renamed "IPv6 Fragmentation Considered Ineffective" > > That is an improvement because it more accurately describes > the content of the draft.
I'm not entirely certain I agree. The suggested title indicates admittance of defeat against mis-configured middleboxes and over- paranoid network administrators, and an implicit willingness to surrender the authority to define our protocols. I'm at the moment not entirely certain I have a suggested alternative title; I may need to give that a bit of thought. Something perhaps about "deployment considerations"? >> - Legacy applications and transport layer protocols will continue >> to generate fragments > > Since this is basically a document with lots of good advice, > I'd also add some very clear and specific recommendations that > middleboxes and firewalls: > > A) MUST NOT block ICMP-based PMTUD messages where the indicated > link MTU is equal-to or greater-than the standard IPv6 minimum > link MTU. > > B) SHOULD NOT block ICMP-based PMTUD messages where the indicated > link MTU is less than the standard IPv6 minimum link MTU in order > to avoid breaking real-world nested tunnel deployments using > IETF standards-track technologies. Yes, please, thank you! Much throughout this discussion there seems to have been a lack of will to retain the authority to define the protocols with the IETF, and I see the above two points as good steps to amend that on this particular issue. >> - Implementers and operators need to be aware that on many paths >> through the Internet, IPv6 fragmentation will fail. Legacy >> applications and transport layer protocols that do not conform to >> the previous paragraph can expect connectivity failures as a >> result. > > s/can expect/might experience/ > > We don't want to use words that a naive reader/implementer > would misinterpret as consent for violating RFC-2460 et seq. For basically the same reasons as above, I agree with this change. Best regards, - Håvard -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
