LLC2TEMPLATE(4)                                                LLC2TEMPLATE(4)



NAME
     llc2template - Description of LLC2 configuration file

DESCRIPTION
     An LLC2 configuration file contains 14 lines of various parameters.
     Configuration of the llc2 driver is performed by lltune(1M) using files
     with this format.  These parameters are detailed below:

      1)  N2VAL Maximum number of times that a Protocol Data Unit is sent
                 following the expiry of the Acknowledgement Timer, the P-bit
                 timer, or the Reject Timer.  This parameter also limits the
                 number of times an RR is sent with the P-bit set when remote
                 busy is true and the Busy timer expires.


      2)  T1VAL The time interval during which the LLC expects to receive an
                 acknowledgement to an outstanding I Protocol Data Unit(PDU)
                 or an expected response to a sent unnumbered PDU (units in
                 0.1 seconds).


      3)  TPFVAL
                 The time during which the LLC2 expects to receive a PDU with
                 the F-bit set to 1 in response to a command with the P-bit
                 set to 1. Value is in 0.1 second units and should be less
                 than the value specified for the Acknowledgement Timer.


      4)  TREJVAL
                 The time interval during which the LLC2 expects to receive a
                 reply to a sent REJ TPDU (units in 0.1 seconds).


      5)  TBUSYVAL
                 The time interval during which the LLC2 waits for an
                 indication of the clearance of a busy condition at the other
                 LLC2 (units in 0.1 seconds).


      6)  TIDLEVAL
                 The time interval during which the LLC2 expects to receive a
                 PDU from the other LLC2.


      7)  ACKDELAY
                 RR delay time (units in 0.1 seconds).


      8)  NOTACKMAX
                 Maximum number of unacknowledged  Rx I-frames.





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LLC2TEMPLATE(4)                                                LLC2TEMPLATE(4)



      9)  TXWINDOW
                 Transmit window (if no XID received).


     10)  TXPROBE
                 The position before the window is closed at which an I PDU is
                 sent with the P-bit set to solicit an acknowledgement from
                 the receiver.


     11)  MAXILEN
                 Maximum size of LLC2 I frame. LLC2 requires all incoming I
                 frames above a certain size to be rejected by a FRMR. This
                 parameter specifies the maximum size of data you may receive
                 starting from the LLC2 protocol header.

                 In a X.25 network, it is constructed as (maximum X.25 data
                 length + X.25 protocol header length + LLC2 protocol header
                 length).  In a SNA network, it is constructed as (maximum SNA
                 data length + SNA request header length + SNA transmission
                 header length + LLC2 protocol header length).

     12)  XIDWINDOW
                 XID window size (receive window), when the remote window size
                 is unknown or zero.


     13)  XIDNDUP
                 Duplicate MAC XID count (0 means no test).


     14)  XIDTDUP
                 Duplicate MAC XID time (units in 0.1 seconds).

SEE ALSO
     lltune(1M).



















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