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The Dedicated Port File, dp

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Dedicated ports are configured in the dedicated port file, /etc/ddfa/dp. The dp file is an ASCII file which consists of entries, one for each dedicated port, using one of the formats below.

For outgoing connections (ports for output devices such as printers and plotters):

<DTC IP Addr>       <board>/<port>       <pseudonym> <pcf>
<DTC Nodename> <board>/<port> <pseudonym> <pcf>
<Server IP Addr> XX/XX <pseudonym> <pcf>
<Server Name> XX/XX <pseudonym> <pcf>
<Server IP Addr> XX/<port TCP addr> <pseudonym> <pcf>

For incoming connections (ports for input devices such as terminals):

<DTC IP Addr>   <board>/<port>  <pseudonym>
<DTC Nodename> <board>/<port> <pseudonym>

The fields are defined as:

DTC IP Addr

The IP address assigned to the DTC, or to one of its ports. The IP address is configured on the server and its ports by using the DTC Manager.

DTC Node Name

The Node Name assigned to the DTC or one of its ports. The Node Name is configured on the server and its ports by using the DTC Manager.

board

The physical DTC board of the port to be dedicated. Refer to the DTC hardware documentation for number of boards per each DTC type.

If XX/XX is specified for <board>/<port>, then the specified IP address or nodename references a port on the server and not the server itself.

/

A slash must separate the board and port numbers.

port

The port number of the DTC port to be dedicated. Refer to the DTC hardware documentation for number of ports per board for each DTC type.

port TCP addr

The port TCP address of the server port to be dedicated. Refer to the server manufacturer's documentation for the type of addressing format used.

pseudonym

The name of a pseudonym that will be used to access the dedicated server port. The device file name can be from 1 to 14 characters. The name of this file is created by the system administrator, and must not be the name of a file which already exists, or is already in use by the system. This file is created and managed solely by the DDFA Utilities and/or the Telnet daemon.

HP recommends using a name which helps identify the DTC port being referenced, such as /dev/telnet/dtc1b2p4 for DTC1, board 2, port 4.

pcf

Used for outgoing connections only. The /etc/ddfa/pcf file contains the port configuration which is used for the Telnet connection to the DTC or non-DTC port.

Refer to Chapter 5 for examples of how dedicated port (dp) files are used by DDFA.

© 1995 Hewlett-Packard Development Company, L.P.