topic Re: LS1028 board cannot support the std802.1CB-2017version? in Other NXP Products

LS1028 board cannot support the std802.1CB-2017version?

xuchegndi — Mon, 14 Feb 2022 03:15:37 GMT

I cannot find any descriptions about the version std802.1CB in LS1028 ARM datasheet.

by testing redundant, I found that the R-tag only has 4 Bytes in LS1028, but in std802.1CB-2017, the R-tag has 6 Bytes.

it seems that LS1028 board cannot support the std802.1CB-2017version?

Re: LS1028 board cannot support the std802.1CB-2017version?

ufedor — Mon, 14 Feb 2022 06:00:54 GMT

Your understanding is correct.

The LS1028A switch was implemented against a pre-standard version 802.1CB-d2-2 (draft 2-2).

RED_TAG is a key area that changed when the spec was ratified.

Re: LS1028 board cannot support the std802.1CB-2017version?

xuchegndi — Tue, 15 Feb 2022 00:45:59 GMT

thanks for your reply.

so can I implement the 802.1 CB-2017 by upgrading firmware?

still, I do not know which version does LS1028A support for TSN serials like Qci, Qbv, Qbu, As, can you conform these versions for me? I can not find any version messages in data sheet. thanks

Re: LS1028 board cannot support the std802.1CB-2017version?

ufedor — Tue, 15 Feb 2022 02:59:38 GMT

> can I implement the 802.1 CB-2017 by upgrading firmware?

This is not possible because 4-byte RED_TAG is a hardware limitation.

> which version does LS1028A support for TSN serials like Qci, Qbv, Qbu

IEEE802.1Qci/D2.1

IEEE802.1Qbv/D3.1

IEEE 802.1Qbu/D3.0

Refer to the QorIQ LS1028A Reference Manual, 16.4 TSN-Capable Ethernet Switch.

Re: LS1028 board cannot support the std802.1CB-2017version?

xuchegndi — Tue, 15 Feb 2022 06:07:55 GMT

Thank you so much.

is there any other NXP platforms which can support publish version (not draft version) of TSN serials? such as 802.1CB-2017 and 802.1QBV-2015

Re: LS1028 board cannot support the std802.1CB-2017version?

ufedor — Tue, 15 Feb 2022 10:25:54 GMT

> is there any other NXP platforms which can support publish version (not draft version) of TSN serials?

Currently - no.