NXP/isochron

802.1CB protocol compliance

Closed this issue · 3 comments

Check whether the 802.1CB function of the LS1028A does not comply with 802.1CB 2017 standards.
As shown in the figure below
e1606dbe68c2225257f1371d99f3bcc

The hardware doesn't comply to 802.1CB-2017:
Screenshot from 2022-02-10 11-38-20
Screenshot from 2022-02-10 11-34-42
It complies to 802.1CB draft 2.2 (2016):
Screenshot from 2022-02-10 11-35-50
Screenshot from 2022-02-10 11-39-34

The EtherType can be customized, but the length of the tag can't, and the placement of the Reserved field in the 802.1CB-2017 header format makes them incompatible.

Thank you for your reply. Can 802.1CB-2017 be configured to remove reserved bits, so as to maintain compatibility with LS1028A.