Installation guide

4-7
Configuration
Change / Show Frame Parameters
Display and/or modification of the frame parameters, that is relative to the X.25.2 layer, of
an X.25 line selected from the list.
Change / Show Frame Parameters
Device name x25l0
Type of line [DTE] +#
Frame window size [7] +#
Frame modulo [8] +#
T1 timer [30] +#
T4 timer [80] +#
N2 counter [10] +#
Connection mode [passive] +#
Note: This menu may be accessed directly, using the command: smit x25datf
Type of Line [DTE]
Two possible values:
DTE (Data Terminal Equipment)
DCE (Data Communication Equipment)
The type of line is defined by the subscription.
Frame Window Size [7]
Number of frames that can be outstanding without acknowledgment
Two possible ranges of values:
1 to 7 if frame modulo is 8
1 to 127 if frame modulo is 128
Frame Modulo [8]
Numbering modulo used to order the frames within the frame window.
This parameter is noted in the subscription sheet.
Two possible values:
8
128
T1 Timer [30]
T1 parameter is defined in the CCITT recommendation.
Time after which, if it has not been acknowledged, a frame is transmitted again.
The value must be in the range 1 to 32767 (multiple of 1/10 seconds) and lower than T4
timer.
T4 Timer [80]
Time after which, if there was no activity on the line, an RR frame (Receive Ready) is sent.
Frame-layer recovery is started if no answer is received within T1.