On Fri, Mar 8, 2019 at 9:42 AM Joe Touch <[email protected]> wrote: > > > On 3/8/2019 9:33 AM, Tom Herbert wrote: > > UDP fragmentation would only with UDP, it doesn't help any other > > transport protovcol. > > Stream transports already do this for the entire stream. > > The only other exception might be DCCP - I'd have to check that. > IPsec, GRE, MPLS, Ether/IP, IPIP, etc. The whole point of having things like fragmentation into the network layer is that it applies to all protocols and we don't need to "reinvent the wheel" every time a new protocol comes along.
> > Also, I don't understand how the fragmentation > > extension header, which has been defined for over twenty years and is > > now part of an Internet standard, can be called "obscured layering". > > Not IPv4; the one where the network EHs would be buried after a GUE > transport header. If by "network EHs" you mean Hop-by-Hop options, the draft specifies how intermediate nodes can parse them in the GUE payload, and a magic number is used to ensure with high probability that a middlebox is indeed inspecting a GUE packet. Also, there is no requirement that any intermediate nodes must process IPv4 Hop-by-Hop options. Tom > > Joe > > _______________________________________________ > Int-area mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/int-area _______________________________________________ Int-area mailing list [email protected] https://www.ietf.org/mailman/listinfo/int-area
