The value of hwifAggregatePortListPorts is an octet string. One bit in each octet indicates one port, so the octet string can indicate eight ports. When a bit is set to 0, it indicates that the corresponding port does not belong to this aggregation group. When a bit is set to 1, it indicates that the corresponding port belongs to this aggregation group. The order is as follows: The maximum number of ports in a slot is 64, so the ports need to occupy eight octets. The order, from left to right, is presented as eight groups, 0-7, 8-15, 16-23, 24-31, 32-39, 40-47, 48-55, and 56-63. In each octet, the port IDs in ascending order is presented from low bit to high bit. On the MA5600T, the slot ID starts from 0. For example, the mask of port 0/1/0 is (HEX) 0000000000000000 0100000000000000 (the first eight bytes are the mask of the port in slot 0).