LU 0 to 3 Information

Article
04/19/2022

LU 0 to 3 information is provided in the lu_0_3_info_sect structure as defined below.

Syntax

typedef struct lu_0_3_info_sect {  
    unsigned long  lu_0_3_init_sect_len;  
    unsigned short num_lu_0_3s;  
} LU_0_3_ INFO_SECT;

Members

lu_0_3_init_sect_len
The length of the initial LU 0 to 3 information section, including this parameter, up to the first link overlay group. The length does not include any previous information sections.

num_lu_0_3s
The number of LU groups. This is the number of times the lu_0_3 overlay group is repeated.

For each configured LU, an lu_0_3_overlay structure for the LU is provided as defined below.

typedef struct lu_0_3_overlay {  
    unsigned long  lu_0_3_entry_len;  
    unsigned char  access_type;  
    unsigned char  lu_type;  
    unsigned char  lu_daf;  
    unsigned char  lu_short_name;  
    unsigned char  lu_long_name[8];  
    unsigned char  session_id[8];  
    unsigned long  dlc_name[8];  
    unsigned char  adapter_num;  
    unsigned char  dest_addr_len;  
    unsigned char  dest_addr[32];  
    unsigned char  sscp_lu_sess_state;  
    unsigned char  lu_lu_sess_state;  
    unsigned char  link_id[12];  
 } LU_0_3_OVERLAY;

Defined by IBM ES for OS/2 version 1.0

The lu_0_3_overlay structure as defined by IBM ES for OS/2 version 1.0 contains the following members:

lu_0_3_entry_len
Size of this LU entry.

access_type
The access type (AP_3270 or AP_LUA).

lu_type
The LU type (AP_LU0, AP_LU1, AP_LU2, or AP_LU3).

lu_daf
The network addressable unit of the LU for which the information is displayed.

lu_short_name
The 1-byte LU short name (ASCII).

lu_long_name
The 8-byte ASCII LU long name.

session_id
The LU-LU session ID.

dlc_name
DLC name set to one of the following:

ETHERAND
IBMTRNET
IBMPCNET
SDLC
TWINAX (Not supported by Host Integration Server)
X25DLC

adapter_num
The DLC adapter number for host link.

dest_addr_len
Length of the destination adapter address.

dest_addr
The destination adapter address.

sscp_lu_sess_state
Specifies the state of the SSCP-LU session.

lu_lu_sess_state
Specifies the state of the LU-LU session. The state can be one of the following:

AP_NOT_BOUND
The LU-LU session is not bound.
AP_BOUND
The LU-LU session is bound.
AP_BINDING
The LU-LU session is in the process of binding.
AP_UNBINDING
The LU-LU session is in the process of unbinding.

link_id
Name of local logical link station being used.

Returned by Host Integration Server

The lu_0_3_overlay structure returned by Host Integration Server contains the following members:

lu_0_3_entry_len
Size of this LU entry.

access_type
The access type (AP_3270 or AP_LUA).

lu_type
The LU type (AP_LU0, AP_LU1, AP_LU2, or AP_LU3).

lu_daf
The network addressable unit of the LU for which the information is displayed.

lu_short_name
The 1 byte ASCII LU short name.

lu_long_name
The 8 byte ASCII LU long name.

session_id
The LU-LU session ID.