Actually looking at this from the perspective where SRH may be omitted I see in the subject draft this clearly stated:
A source node steers a packet into an SR Policy. *If the SR Policy results in a Segment List containing a single segment*, and there is no need to add information to the SRH flag or add TLV; the DA is set to the single Segment List entry, and the SRH MAY be omitted.ΒΆ <https://datatracker.ietf.org/doc/html/draft-ietf-spring-srv6-srh-compression#section-6.2-13.1> That to me indicated that host computed checksum will be correct all along the transit nodes. So no issue either here. Could someone illustrate with a drawing of packet's traversing the network their assumed header format and forseen issues ? Thx, R,
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