HP rp4440 HP DLPI Programmer's Guide - Page 139
Dl_token_ack, Dl_data_req
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Chapter 2 DLPI Primitives Connection-mode Service Primitives DL_TOKEN_ACK This message is sent in response to DL_TOKEN_REQ; it conveys the connection response token assigned to the stream. Format The message consists of one M_PROTO message block containing the structure shown below. typedef struct { ulong ulong } dl_token_ack_t; dl_primitive; dl_token; Parameters dl_primitive DL_TOKEN_ACK dl_token connection response token associated with the stream. This value must be a non-zero value. The DLS provider will generate a token value for each stream upon receipt of the first DL_TOKEN_REQ primitive issued on that stream. The same token value will be returned in response to all subsequent DL_TOKEN_REQ primitives issued on a stream. State The message is valid in any state in response to a DL_TOKEN_REQ. New State The resulting state is unchanged. DL_DATA_REQ Conveys a complete DLS Data Unit (DLSDU) from the DLS user to the DLS provider for transmission over the data link connection. Format The message consists of one or more M_DATA message blocks containing at least one byte of data. State 139