On 4/4/2016 3:31 PM, go...@erg.abdn.ac.uk wrote:
>> My point is that - at the abstract level - UDP should not have an API
>> > that talks about DSCP, ECN, or TTL - that ought to be something opaque
>> > that UDP hands down underneath.
>> >
> And does this particular list of things vary between IPv4 or IPv6? - I
> suggest not really, apart from different naming of the TTL to HOP_COUNT?
IPv6 has a flow label.
They support different options, including:
IPv6 doesn't add an ID field unless fragmentation occurs.
IPv6 allows jumbograms.
Regardless, these are IP issues, though - they should be transparent at
the UDP API (though the UDP API could support passing this info opaquely
along in either direction).
Joe
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