create sdlc link
The create sdlc link command creates an instance of the SDLC Link
subentity for each physical line, which manages all stations on the
line. Creation also allocates resources for the subentity, and set
its characteristics to their default values.
Ex, ncl> create sdlc link sdlc-1 line modem connect line line-0, -
_ncl> capability primary
1 – Characteristics
Line local entity Specifies the Modem Connect Line on
name which the SDLC protocol operates.
For more information about Modem
Connect Line refer to the
DECnet-Plus Network Control
Language Reference.
Capability primary | Specifies the capability of the
secondary | Station subentities of this Link
negotiable entity. Negotiable stations can
become either primary or secondary.
The default is negotiable.
Configuration pointtopoint | Specifies whether the Link supports
multipoint only a point-to-point connection or
can also support a multipoint
connection. Multipoint supports one
or more than one connection. The
default is pointtopoint. The Peer
Server does not support multipoint
primary connections.
Connection nonswitched | Specifies whether the Link supports
Type switched switched or nonswitched connections.
The default is nonswitched.
Receive (1-32764) Specifies the maximum frame size
Frame Size (excluding the header) that can be
received on the line represented by
this Link. The default is 1000.
Reply Timer (100-60000) Specifies the time (in milliseconds)
to wait for an acknowledgment before
starting the recovery procedure. The
default is 3000.
Retry (0-128) Specifies that, when the Link is
Maximum secondary, this is the maximum
number of times a frame is
retransmitted before assuming a
fatal error. When the Link is
primary, this is the number of times
that a retry will be attempted. The
default is 15.
Poll Pause (0-60000) The time in milliseconds to pause
when the end of the polling list is
reached. Used only when the Link is
primary. The default is 200.
Service (1-255) Specifies the maximum number of
Limit regular scans of the service order
table for secondary Stations that
will be made before a special scan
is made. Used when the Link is
multipoint primary. The default is
4. Not used at this time.
TWA Send no | yes Specifies whether the Link provides
Priority priority for outbound services when
configured for Two-Way Alternating
(half-duplex) data transfer in the
multipoint primary mode. Yes
means that PIUs that arrive for
transmission while data is being re-
ceived are transmitted immediately.
No, the default, means that outbound
transmission is strictly determined
by the position of station service
order entries in the Service Order
Table. This attribute is not
relevant to SDLC point-to-point
operations. Not used at this time.