Nortel 5399 参考指南
Model 5399 RAC Digital Modem Configuration Notes
Parameter 1
8
Table 1 Transmitting DCE Break Handling with Respect to Data
Break Handling
Option
Going to Remote DCE
Going to local
DTE
Coming from
remote DCE
Coming from local
DTE
Destructive/
Expedited *
Expedited *
Complete data
transmission in
progress,then transmit
break. Discard data not
yet transmitted.
transmission in
progress,then transmit
break. Discard data not
yet transmitted.
Discard data
not yet delivered.
not yet delivered.
Discard data until
acknowledgement
received.
acknowledgement
received.
Discard data until
acknowledgement
received.
acknowledgement
received.
Non-destructive/
Expedited
Expedited
Complete data
transmission in
progress, then transmit
break.
Hold data until receive
acknowledgment.
transmission in
progress, then transmit
break.
Hold data until receive
acknowledgment.
Continue
delivering data.
delivering data.
Continue receiving
data.
data.
Continue receiving
data.
data.
Non-destructive/
Non-expedited
Non-expedited
Wait for
acknowledgment of
data previously
transmitted, and then
transmit break.
Hold data until
acknowledgment
received.
acknowledgment of
data previously
transmitted, and then
transmit break.
Hold data until
acknowledgment
received.
Continue
delivering data.
delivering data.
Continue receiving
data..
data..
Continue receiving
data.
data.
All state variables pertaining to control function and error control function operation, except those pertaining to
break transfer, are reset to their initial values.
DCE: Data Communications Equipment (MODEM) DTE: Data Terminal Equipment (PC)
break transfer, are reset to their initial values.
DCE: Data Communications Equipment (MODEM) DTE: Data Terminal Equipment (PC)