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AIX Version 4.3 Communications Technical Reference, Volume 1

DLC_DEL_GRP ioctl Operation for DLC

The following parameter removes a previously defined group or multicast address:

struct dlc_add_grp
   {
    ulong_t gdlc_sap_corr;      /*GDLC SAP correlator  */
    ulong_t grpaddr_len;      /*group address length */
    ulong_t grp_addr[DLC_MAX_ADDR]; /*group address to be 
                  removed        */
   };

The fields of this ioctl operation are:

gdlc_sap_corr Indicates the generic data link control (GDLC) service access point (SAP) identifier being requested to remove a group or multicast address from a port. This field is known as the GDLC SAP Correlator field.
grp_addr_len Contains the byte length of the group or multicast address to be removed.
grp_addr Contains the group or multicast address to be removed.

Implementation Specifics

The DLC_DEL_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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