Datatek DT-4180 - Manual (Page 58)

9 4 8 0 , 4 1 8 0 , 4 2 8 0 , 4 2 8 4 4 0 0 0 X A U s e r M a n u a l
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The
x25win=<LAPB Tx Window> option is available only when the port is of type x25.
It allows changing the number of frames sent without acknowledgement. The default
number is seven per the specification. The <LAPB Tx Window> may have a value of
one through seven inclusive.
The
x25t1=<T1 Timer Value> option is available only when the port is of type x25. It
allows changing the X.25 LAPB T1 protocol timer.
The
x25n2=<N2 Retry Counter> option is available only when the port is of type x25. It
allows changing the number of retries at the LAPB layer for protocol operations.
The
x25dar=< ON | OFF > option is available only when the port is of type x25. When
enabled, the BX.25 link layer will be immediately restarted should the peer disconnect.
When disabled, the B)X.25 link layer remains in disconnect mode pending further action
from the peer. The option was added for TR-TSY-000385 AMATPS interfaces.
The
x25pass=< OFF | DFLT | “Password String” > option is available only when the
port is of type x25. This option allows the setting of a BX.25 I-Frame Password for the
link. When set to
OFF , the link does not issue nor does it expect an I-Frame Password.
When the DFLT option is set, the TR-TSY-000385 AMATPS passwords are installed.
Otherwise, a custom password may always be configured as a double quoted string.
Specifics of this interface may be found in BX.25 Issue 3.
The
x25xid=< XID Link ID > option is available only when the port is of type x25. This
option allows the setting of the XID link ID to be used when BX.25 I-Frame Passwords
are exchanged. If the
x25pass option is enabled and the x25xid has not been set, the
default link id is 4. Specifics of this interface may be found in BX.25 Issue 3.
The
vc=<Virtual Circuit Number> is a modifier on the port number when the port is of
type x25. It is required for configuration options that relate to an individual virtual circuit.
The
vcsvc=< PAD | PASS | RBP | MAC| ISO | SESS > option determines the type of
service for a virtual circuit. The VC must have been specified on the command line.
When set to the value of PAD, the virtual circuit is terminated in an X.3 PAD. When a
value of PASS is selected, an X.25 pass-through service is selected. The latter is used
for VC aggregation. When a value of MAC is selected, a special interface for the
MacStar operation system is used. When a value of RBP is selected, the Record
Boundary Preservation protocol is selected. The ISO value selects ISO X.25 used with
FTAM implementations. The SESS value selects the (B)X.25 session layer interface.
The
vcckt=< SVC | PVC > option determines the operation of a virtual ciruit. When the
PVC option is selected, connections will not generate call setup or call clear X.25
packets. However, the xxxx will still respond to call setup and call clear packets
generated by the attached device. When the SVC option is selected, a TCP connection
to the virtual circuit will generate a call setup X.25 packet transaction. A disconnect will