On 2012/03/28, at 10:44, Simon Perreault wrote: > On 03/28/12 09:22, Tetsuya Murakami wrote: >> In terms of CNP, CNP needs to be calculated every time if the packet >> is toward to outside of domain because the embedded IPv4 address >> could be different. So, I think there is no difference between CNP >> and recalculation of L4 checksum from the implementation point of >> view. > > On the contrary, there is a big difference. The difference is that you are > only concerned with L3. L4 can change: UDP, TCP, ICMP, STCP, DCCP, etc, etc, > etc. You need a lot of code to handle all existing transport protocols, and > you still can't handle future protocols that people might develop. > > Checksum neutrality is a *big* advantage.
Cool. How many protocols we should support for just a *transition* mechanism? --satoru _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
