Peace,
On Sat, Aug 7, 2021, 6:19 PM Toerless Eckert <tte@xxxxxxxxx> wrote:
Do our RFCs say or imply anything about whether or not hosts can change
the IPv6 flow label field of a single flow during the lifetime
of a flow (MUST, SHOULD, MAY, ... MAY NOT, SHOULD NOT, MUST NOT)
Well, it is, of course, sort of implied that the flow label is attached to the particular flow.
As per normative references, RFC 6437 goes (underscores are mine):
> It is therefore RECOMMENDED
> that source hosts support the flow label by setting the flow label
> field for _all_packets_of_a_given_flow_ to the _same_value_ chosen from
> an approximation to a discrete uniform distribution.
--
Töma
