This parameter invokes a binary diagnostic mode when a direct mode connection has been established. The bit stream, as seen on the line interface, is placed into the DTE buffer, one octet at a time. The DTE interface rate must be faster than the line rate (10/8ths faster when the DTE interface is set to 8N1) in order for the buffer not to overflow. This mode is useful for diagnostics.
Range: TRUE, FALSE
Default: FALSE
This parameter invokes an HDLC diagnostic mode when a direct mode connection has been established. In the Rx data path, both bytes of the data unit are released to the DTE (most significant byte first). In the transmit data path, an HDLC frame is generated with all data up to a DLE ETC from the DTE. This mode is useful for diagnostics.
Range: TRUE, FALSE
Default: FALSE
MP.10 ] parm__dp_lapm_to_sync Sync Mode
This parameter invokes a synchronous mode of the Modem when a non-LAPM HDLC frame is detected.
Range: TRUE, FALSE
Default: FALSE
MP.11 ] parm__dp_mnp_block_mode_en MNP Block Mode
This parameter specifies the selection between block and stream modes of operation during the MNP error correction data protocol.
Range: TRUE, FALSE
Default: FALSE
MP.12 ] parm__dp_mnp_data_compression_select MNP Compression Mode
This parameter specifies the particular compression that MNP should use. This parameter is not used to specify that compression must be used, rather it only specifies the type of compression that can be used. MNP10 requires the use of BTLZ if available and compression is enabled; this parameter is therefore ignored for MNP10.
Default: DP_MNP_COMPRESSION__BTLZ_REQUESTED
This parameter is used to enable data phase optimization, the use of optimized header fields in MNP data and acknowledge frames. This reduces the amount of information that is transmitted between the two modems during an MNP connection and therefore slightly increases the potential throughput.
Range: TRUE, FALSE
Default: TRUE
MP.14 ] parm__dp_mnp_max_data_size MNP Compression Mode
This parameter is used to restrict the maximum size of transmitted data packets. This software however ensures that the maximum data size does not exceed the negotiated maximum.
Range: 64-256, normally in multiples of 64
Default: 256
MNP Compression Mode Table:
Parm
Value
|
MNP Compression Mode
|
Symbolic
Name
|
0x0000
|
MNP5 Only
|
DP_MNP_COMPRESSION__MNP5_ONLY
|
0x0001
|
MNP5 BTLZ Acknowledge Only
|
DP_MNP_COMPRESSION__MNP5_BTLZ_ACK_ONLY
|
0x0002
|
BTLZ Requested
|
DP_MNP_COMPRESSION__BTLZ_REQUESTED
|
0x0003
|
BTLZ_Required
|
DP_MNP_COMPRESSION__BTLZ_REQUIRED
|
source = dp.h
MP.15 ] parm__dp_mnp_service_class MNP Service Class
This parameter is used to select the MNP service class. Service class 1 is a half duplex communications protocol and is not implemented. Service class 2 and 3 are full duplex protocols. Service class 2 uses asynchronous character based packets, service class 3 uses HDLC synchronous packets after the LR packets.
Service class 4 introduced optional features that are compatible with the basic aforementioned packet types. These features are enabled by other MNP protocol related parameters.
Default: DP_MNP_CLASS__FULL_SYNC
MNP Service Class Table:
Parm
Value
|
MNP Service Class
|
Symbolic
Name
|
0x0001
|
MNP Service Class 1
|
DP_MNP_CLASS__1_CREDIT
|
0x0002
|
MNP Service Class 2
|
DP_MNP_CLASS__FULL_ASYNC
|
0x0003
|
MNP Service Class 3
|
DP_MNP_CLASS__FULL_SYNC
|
source = dp.h
MP.16 ] parm__dp_disconnect_mgmnt_mode Disconnect Management Mode
This controls the delivery of pending or accumulated data upon the receipt of a disconnect request.
In this context, the term "abandon" refers to the immediate discard of all data. The term "forever" refers to forever attempting to deliver the data, prematurely terminating only upon a disconnect request from the controller other than the one that initiated the disconnect. (The two controllers refer to the remote modem and the local host controller.) The term "timed" refers to attempting to deliver data as specified for the "forever" case, except abandoning when the disconnect management timer expires.
Default: DP_DISC_MGMNT_TX__BF__ABANDON +
DP_DISC_MGMNT_RX__BF__ABANDON
Tx Disconnect Management Mode Table:
source = dp.h
Rx Disconnect Management Mode Table:
Parm
Value
|
Rx Disconnected Management Mode
|
Symbolic
Name
|
0x0000
|
Rx Abandon
|
DP_DISC_MGMNT_RX__BF__ABANDON
|
0x0004
|
Rx Forever
|
DP_DISC_MGMNT_RX__BF__FOREVER
|
0x0008
|
Rx Timed
|
DP_DISC_MGMNT_RX__BF__TIMED
|
source = dp.h
|