B.7.2.4 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 byte sequence below:

media-access control address

6 bytes

type

2 bytes

routing information

variable

dl_src_addr_offset

Specifies offset to byte sequence above. The offset must point to a byte sequence composed of the destination media-access control address, the Ethernet type, and routing information, if any.

dl_group_address

Specifies group address; 1 if broadcast or multicast.