[Int-area] Re: [tsvwg] [EXTERNAL] Re: UDP options [was IP Parcels and Advanced Jumbos (AJs)]

> On Sep 30, 2024, at 8:41 AM, Templin (US), Fred L <[email protected]> wrote:
> 
> >> For parcels/AJs >= 64K, the overall length appears in the Parcel Payload Length of the HBH option and
> >> the UDP length is set to 0. The IP parcels draft specifies that UDP Length = 0 means that there will be
> >> a trailing 2-octet UDP Option Length field beyond the end of what would be considered the UDP options.
> >> The trailing field is not part of the UDP options, but is used to determine the starting offset and length
> >> of the UDP options. Again, this is only for parcels/AJs >= 64K.

I’m not sure I understand; it seems like somebody needs to adjust that PPL HBH option.

Either:
	PPL HBH gives total packet length
	then UDP options has to know to adjust that by -2

UDP options currently takes what it gets from the IP layer length; PPL HBH would need to know to subtract that by 2 for UDP, maybe something else for TCP or other transports.

??

Joe

_______________________________________________
Int-area mailing list -- [email protected]
To unsubscribe send an email to [email protected]