D-Link DI-1750 Reference Manual page 501

14.3.4 Configure SDLC Timer and Retry Counts
When an SDLC station sends a frame, it waits for an acknowledgment from the receiver indicating that
this frame has been received. You can modify the time the router allows for an acknowledgment before
resending the frame. You can also determine the number of times that a software resends a frame
before terminating the SDLC session. By controlling these values, you can reduce network overhead
while continuing to check transmission of frames.
To set the SDLC timer and retry counts, use one or both of the following commands in interface
configuration mode:
sdlc t1 milliseconds
sdlc n2 retry-count
st
Take the 1 command as an example
Select 28 item from listing, display:
(00)K
......
(03)T1
......
Please Input the code of command to be excute(0-16): 3
Input 3，select T1 item，display ：
(00)<1-64>
Please Input the code of command to be excute(0-0): 0
Select 0，and input milliseconds.
14.3.5 Configure the Amount of SDLC Frames and Information Frames
You can set the maximum size of an incoming frame and set the maximum number of
Information-frames (or window size) the router will receive before sending an acknowledgment to the
sender. By using higher values, you can reduce network overhead.
To set the amount of SDLC frame and information frame, use any of the following commands in
interface configuration mode:
sdlc n1 bit-count
sdlc k window-size
sdlc poll-limit-value count
st
Take the 1 command as an example
Select 28 item from listing, display:
(00)K
(01)N1
(02)N2
......
Please Input the code of command to be excute(0-16): 1
Input 1，select 1item ，display：
(00)<1-1500>
Please Input the code of command to be excute(0-0): 0
Select 0，and input bit-count。
Model Name
Command
The size of the sending window
the time of receiving an acknowledgment
Time to wait for a reply to a frame in seconds
Command
The size of the sending window
Max number of bytes for incoming frames
Number of retry times
Max number of bytes for incoming frames
Control the amount of time the software waits for a reply.
Set the number of times the software will retry an
operation that has timed out.
Set the maximum size of an incoming frame.
Set the local window size of the router.
Set how many times a primary station will poll a
secondary station.
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