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Table 70. Valid Values for Frame Size in Link Frame-Size Command
Minimum Maximum Default
128 18000 2048
Set the link frame size greater than the maximum packet size that you
configured with the set station xxx max packet command. Otherwise, the
router automatically resets the maximum packet size to the link frame size
and issues the following ELS message:
SDLC.054: nt 3 SDLC/0 Stn xx-MaxBTU too large for Link adjusted (4096->2048)
Example: set link frame-size
Frame size in bytes (128 - 18000)[2048]?
link group-poll
Sets a group poll address for secondary stations on the link. The SDLC
software supports the IBM 3174 group poll function. Use the add station
or the set station group inclusion command to include a station in the
group poll list.
Example:
set link group-poll
Enter group poll address (in hex) [00:]?f3
Group poll support enabled
link idle flag
Configures the transmit idle state for SDLC framing. The default is the flag
option which provides continuous flags (7E) between frames.
Example: set link idle flag
The link will receive a flag idle transparently.
link idle mark
Configures the transmit idle state for SDLC framing. The mark option puts
the line in a marking state (OFF, 1) between frames.
link inactivity
#-of-seconds
For idle NRM/E secondary stations, sets the time after which the interface
changes the station to its recovery state. The range is 0 to 7200 seconds.
The default is 30. A 0 (zero) causes the station to remain idle indefinitely.
Example:
set link inactivity
Enter secondary link station inactivity timeout :[30.0]?
link inter-frame delay
seconds
Allows the insertion of a delay between transmitted packets. This command
ensures a minimum delay between frames for compatibility with older,
slower serial devices at the other end. This parameter is the amount of time
between frames in seconds.
Valid values: 0to120
Default value: 0
Example:
set link inter-frame delay
Transmit Delay Counter [0]?
link leading flags
Sets the number of leading flags. Use this command when the inter-frame
Configuring SDLC Interfaces
546
MRS V3.2 Software User’s Guide
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