B.7.3.5 DL_UNITDATA_IND_T

typedef struct {
    ULONG     dl_primitive;
    ULONG     dl_dest_addr_length;
    ULONG     dl_dest_addr_offset;
    ULONG     dl_src_addr_length;
    ULONG     dl_src_addr_offset;
    ULONG     dl_group_address;
} dl_unitdata_ind_t;
 

Members:

dl_primitive

Must be the manifest constant DL_UNITDATA_IND_T.

dl_dest_addr_length

Specifies length of destination address; always 6.

dl_dest_addr_offset

Specifies offset to destination address.

dl_src_addr_length

Specifies length of source address; always 8.

dl_src_addr_offset

Specifies offset to byte sequence below. The offset points to the byte sequence composed of the source media-access control address followed by the Ethernet type.

media-access control address

6 bytes

type

2 bytes

dl_group_address

Specifies group address; 1 if broadcast or multicast.