Loop prevention indicator

Associated variants: BICC, ETSI V2, ITU White, ITU 97

Provides the loop prevention indicator format.

typedef struct _loopPrevInd /* Loop Prevention Indicator                */
{
    ElmtHdr eh;          /* element header                              */
    TknU8   loopTypeInd; /* Type indicator                              */
    TknU8   responseInd; /* always 7 bits, B-H: all spare if loopType=0 */
}SiLoopPrevInd;

The fields in the SiLoopPrevInd structure are encoded as follows:

Field

Value

loopTypeInd

Type indicator. Defined values:

0 = LOOP_TYPE_REQUEST   Request

1 = LOOP_TYPE_RESPONSE   Response

responseInd

Response indicator. Defined values if loopTypeInd is 1:

0 = LOOP_RESP_INSUFF   Insufficient information

1 = LOOP_RESP_NO_LOOP   No loop exists

2 = LOOP_RESP_SIMULTANEOUS   Simultaneous transfer

3 = LOOP_RESP_SPARE   Spare


Tokens

Token

BICC

ETSI V2

ITU White

ITU 97

loopTypeInd

*

*

*

*

responseInd

B-H

B-H

B-H

B-H