Museum

Home

Lab Overview

Retrotechnology Articles

⇒ Online Manual

Media Vault

Software Library

Restoration Projects

Artifacts Sought

Related Articles

/DEVICE

/TIMEOUT

/CIRCUIT_MAXIMUM

/GROUP

/CHECKSUM

/CONTROLLERS

/ALL_CONTROLLERS

/TRANSMIT_QUOTA

/SLOW_MODE

/NODE_NAME

examples

unit-names

LASTCP START TRANSPORT — VMS 5.5

        Format: START TRANSPORT /qualifier

Start LASTDRIVER transport.  By default, LASTCP will initialize the first
ethernet controller for LASTDRIVER.

LASTCP will first try to start the device specified in the /DEVICE qualifier.
If not specified, LASTCP will start the device specified in the LAST$DEVICE
logical name.  Finally, if neither LAST$DEVICE nor /DEVICE are specified,
LASTCP will attempt to start all ethernet device based on an internal table.

The LAST transport should not be started until after DECnet has been
started. If the LAST transport is started before DECnet, DECnet will
fail to start properly.

Additional information available:

/DEVICE/TIMEOUT/CIRCUIT_MAXIMUM/GROUP/CHECKSUM
/CONTROLLERS/ALL_CONTROLLERS/TRANSMIT_QUOTA/SLOW_MODE
/NODE_NAME

/DEVICE

        Format: START TRANSPORT/DEVICE=(list-of-devices)

Start the transport using the device(s) specified.  This qualifier
will override LASTCP's default device table and the LAST$DEVICE logical
name.

/TIMEOUT

        Format: START TRANSPORT /TIMEOUT=n

Specifies the minimum interval in seconds to be used by the server
transport to determine when inactive clients should be disconnected.
An inactive client is one that has been turned off or otherwise isolated
from the server.

By default, the server's timer is specified by the client transport.  This
qualifier allows a minimum value to be enforced on all connections.

n represents an integer in the range 60-65534 seconds.

/CIRCUIT_MAXIMUM

        Format: START TRANSPORT /CIRCUIT_MAXIMUM=n

Set the maximum number of nodes that may simultaneously be connected.

The default maximum circuits is 80.

/GROUP

        Format: START TRANSPORT /GROUP=n

Grouping is a method for segmenting LANs such that services associated with
certain nodes will not be by seen by other nodes.  An example of such an
environment would be an extended LAN.  Here, a network manager may wish
to restrict nodes to services offered on their own LAN segment.

When specifying a group, the user should enter a number between 0 and 1023
inclusive.  The default group is group zero.

/CHECKSUM

        Format: START TRANSPORT /CHECKSUM

Establish mandatory data checksumming for all messages exchanged
between the current node and any remote node.  LASTDRIVER  computes a
checksum for all messages, and verifies the checksum on all received
messages.

/CONTROLLERS

        Format: START TRANSPORT /CONTROLLERS=([{controller letter,}...])

This qualifier allows the user to specify which Ethernet controllers
are to be initialized for LASTDRIVER.  The default is to initialize the
first ethernet controller.


This qualifier may not be used if the /ALL_ETHERNET qualifier is used.

Additional information available:

examplesunit-names

examples

START TRANSPORT /CONTROLLERS=(A,B)

This command instructs LASTCP to initialize controllers A and B with
the LAST protocol.

START TRANSPORT /CONTROLLERS=B

This command instructs LASTCP to initialize controller B with the LAST
protocol.

unit-names

A unit name is of the form DDCU: where

  DD is the device type
   C is the controller field
   U is the unit number

When specifying controllers for LASTDRIVER use the controller field of
the unit name.

XQA0 is controller A
XEB0 is controller B

/ALL_CONTROLLERS

        Format: START TRANSPORT /ALL_CONTROLLERS

This qualifier instructs LASTCP to start the LAST protocol on all
Ethernet adapters available.

This qualifier may not be used if the /CONTROLLERS qualifier is
used.

The default is to start only the first ethernet controller.

/TRANSMIT_QUOTA

        Format: START TRANSPORT /TRANSMIT_QUOTA=n

This qualifier establishes the number of transmit buffers LASTDRIVER
may use to communicate with a remote node.

The default is to use 5 transmit buffers.

/SLOW_MODE

        Format: START TRANSPORT /SLOW_MODE

This qualifier instructs LASTDRIVER to require remote transmitters to
use a TRANSMIT_QUOTA of 1 when communicating with this node.

This qualifier is not normally used.

/NODE_NAME

        Format: START TRANSPORT /NODE_NAME=name

This qualifier instructs LASTCP to initialize LASTDRIVER with the node
name specified.

If not specified, LASTCP will use the DECnet node name.

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026