The ATM_BLLI structure and associated manifest constants

/* 
 *  values used for Layer2Protocol in struct B-LLI
 */
#define BLLI_L2_ISO_1745           0x01   /* Basic mode ISO 1745    */
#define BLLI_L2_Q921               0x02   /* CCITT Rec. Q.921       */
#define BLLI_L2_X25L               0x06   /* CCITT Rec. X.25, link layer              */
#define BLLI_L2_X25M               0x07   /* CCITT Rec. X.25, multilink               */
#define BLLI_L2_ELAPB              0x08   /* Extended LAPB; for half duplex operation */
#define BLLI_L2_HDLC_NRM           0x09   /* HDLC NRM (ISO 4335)                      */
#define BLLI_L2_HDLC_ABM           0x0A   /* HDLC ABM (ISO 4335)                      */
#define BLLI_L2_HDLC_ARM           0x0B   /* HDLC ARM (ISO 4335)                      */
#define BLLI_L2_LLC                0x0C   /* LAN logical link control (ISO 8802/2)    */
#define BLLI_L2_X75                0x0D   /* CCITT Rec. X.75, single link procedure   */
#define BLLI_L2_Q922               0x0E   /* CCITT Rec. Q.922                         */
#define BLLI_L2_USER_SPECIFIED     0x10   /* User Specified                           */
#define BLLI_L2_ISO_7776           0x11   /* ISO 7776 DTE-DTE operation               */

/* 
 *  values used for Layer3Protocol in struct B-LLI
 */
#define BLLI_L3_X25                0x06   /* CCITT Rec. X.25, packet layer            */
#define BLLI_L3_ISO_8208           0x07   /* ISO/IEC 8208 (X.25 packet layer for DTE  */
#define BLLI_L3_X223               0x08   /* X.223/ISO 8878                           */
#define BLLI_L3_SIO_8473           0x09   /* ISO/IEC 8473 (OSI connectionless)        */
#define BLLI_L3_T70                0x0A   /* CCITT Rec. T.70 min. network layer       */
#define BLLI_L3_ISO_TR9577         0x0B   /* ISO/IEC TR 9577 Network Layer Protocol ID*/
#define BLLI_L3_USER_SPECIFIED     0x10   /* User Specified                           */

/* 
 *  values used for Layer3IPI in struct B-LLI
 */
#define BLLI_L3_IPI_SNAP           0x80   /* IEEE 802.1 SNAP identifier               */
#define BLLI_L3_IPI_IP             0xCC   /* Internet Protocol (IP) identifier        */

typedef struct {
    DWORD Layer2Protocol;                 /* User information layer 2 protocol           */
    DWORD Layer2UserSpecifiedProtocol;    /* User specified layer 2 protocol information */
    DWORD Layer3Protocol;                 /* User information layer 3 protocol           */
    DWORD Layer3UserSpecifiedProtocol;    /* User specified layer 3 protocol information */
    DWORD Layer3IPI;                      /* ISO/IEC TR 9577 Initial Protocol Identifier */
    UCHAR SnapID[5];                      /* SNAP ID consisting of OUI and PID           */
} ATM_BLLI;
 

Parameters

Layer2Protocol

Identifies the layer 2 protocol. Corresponds to the User information layer 2 protocol field in the B-LLI information element. A value of "SAP_FIELD_ABSENT" indicates that this field is not used, and a value of "SAP_FIELD_ANY" means wildcard.

Layer2UserSpecifiedProtocol

Identifies the user specified layer 2 protocol. Only used if the Layer2Protocol parameter is set to "BLLI_L2_USER_SPECIFIED". The valid values range from 0 to 127. Corresponds to the User specified layer 2 protocol information field in the B-LLI information element.

Layer3Protocol

Identifies the layer 3 protocol. Corresponds to the User information layer 3 protocol field in the B-LLI information element. A value of "SAP_FIELD_ABSENT" indicates that this field is not used, and a value of "SAP_FIELD_ANY" means wildcard.

Layer3UserSpecifiedProtocol

Identifies the user specified layer 3 protocol. Only used if the Layer3Protocol parameter is set to "BLLI_L3_USER_SPECIFIED." The valid values range from 0 to 127. Corresponds to the User specified layer 3 protocol information field in the B-LLI information element.

Layer3IPI

Identifies the layer 3 Initial Protocol Identifier. Only used if the Layer3Protocol parameter is set to "BLLI_L3_ISO_TR9577". Corresponds to the ISO/IEC TR 9577 Initial Protocol Identifier field in the B-LLI information element.

SnapID

Identifies the 802.1 SNAP identifier. Only used if the Layer3Protocol parameter is set to "BLLI_L3_ISO_TR9577" and Layer3IPI is set to "BLLI_L3_IPI_SNAP", indicating an IEEE 802.1 SNAP identifier. Corresponds to the OUI and PID fields in the B-LLI information element.