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Command Line Interface 129
HDLC Commands
ENABLE HDLC FRMR
DISABLE HDLC FRMR
Enables/disables rejection of RR/RNR/REJ frames that have their poll bit set to 0. Certain
networks use the HDLC poll bit in a non-standard manner and require special handling of the
three frame types:
- RR (receiver ready) frames
- RNR (receiver not ready) frames
- REJ (reject) frames
Normally, when any of these three frames are received as commands with the poll bit set to 0,
they are rejected. Non-standard networks may not want these frames to be rejected.
ENABLE HDLC X32DIALOUT
DISABLE HDLC X32DIALOUT
Enables/disables X.32 dialout. Default: Disabled.
SET HDLC T1 checkPointTimer
Defines the Check Point Timer, which specifies how long to wait for a response from the
remote device before an attempt is made to determine its status. This parameter should be set to
slightly greater than twice the transmission time of the longest frame. Range: 200-9999
milliseconds.
Default: 2900.
SET HDLC T2 AckDelayTimer
Defines the Ack Delay Timer. To optimize communications efficiency, acknowledgments can
be piggy-backed onto outgoing frames rather than being sent out on their own. The Ack Delay
Timer defines the length of time the device should wait for an outgoing information frame,
before sending the acknowledgement by itself. This setting (T2) should always be much less
than the Check Point Timer (T1); otherwise, the remote device may time out and try to recover
before the acknowledgment is received.
Range: 0-25000.
Default: 200.
SET HDLC T3 IdleProbeTimer
Defines the Idle Probe Timer, which specifies how long the link should remain idle before the
Eicon 1530 sends an RR (Receiver Ready) frame, with a P bit set, to the remote device. This is
done in order to determine its status. The remote device, if still functioning, will respond using
an RR frame with the F bit set.
Range: 0-100000 milliseconds.
Default: 15000.