* Hagen Paul Pfeifer | 2013-06-24 22:40:09 [+0200]:
>I'm a little bit sad about this incompatible protocol change/break. >Fragmentation was an early design failure in IPv4 - for IPv6 fragmentation it >is still supported and I see no way to obsolete fragmentation without >incompatible protocol change. Especially "New IPv6 host implementations MAY >support IPv6 fragmentation and reassembly, but are not required to do so." and >"Network operators MAY filter IPv6 fragments.". - this break legacy >application/stacks using fragmentation. Sidenote: packets are generated within a sensor network domain sending fragmented packets via mcast to common PCs using general purpose OS (Windows, Linux, ...). "New IPv6 host implementations MAY support IPv6 fragmentation and reassembly" break things. "New IPv6 host implementations MAY support IPv6 fragmentation but MUST support reassembly" may superior. This will aging out fragmentation over a longer period, new hosts will not use it but existing - applications will not break. "Network operators MAY filter IPv6 fragments." is a policy thing and costumers have to deal with that already. So it is ok from my point of view. Hagen -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
