Hi user_4257107,
Currently, the following ports support Mac-sec. Do you have any error information or other information for me to view?
400GE even-numbered interfaces 0, 2, 4, ... 32, and 34 on the CEL36DQHG-P.
100GE interfaces 0 to 11, 24 to 35 and split interfaces 0, 1, 2, 6, 7, 8, 24, 25, 26, 30, 31, and 32 on the CEL48CQHG-P or CEL48CQ-SAN.
100GE interfaces 0 to 5 and 25GE interfaces 24 to 47 on the CEL72XSHGA-P or CEL72XS-SAN.