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AIX Version 4.3 Communications Technical Reference, Volume 1
DLC_ADD_GRP ioctl Operation for DLC
The following parameter block adds a group or multicast receive address:
struct dlc_add_grp
{
ulong_t gdlc_sap_corr; /* GDLC SAP correlator */
ulong_t grp_addr_len; /* group address length */
uchar_t grp_addr[DLC_MAX_ADDR]; /* grp addr to be added */
};
The fields of this ioctl operation are:
gdlc_sap_corr |
Contains the generic data link control (GDLC) service access point (SAP) Correlator being requested to add a group or multicast address to a port. |
grp_addr_len |
Contains the byte length of the group or multicast address to be added. |
grp_addr |
Contains the group or multicast address value to be added. |
Implementation Specifics
The DLC_ADD_GRP ioctl operation is selectable through the fp_ioctl kernel service or the ioctl subroutine. It can be called from the process environment only.
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