DSLINE Command

An environment ID—that is, a character string representing a specific session on a remote node. For NS names, the environment ID itself may optionally be qualified as follows: envname[.domain[.organization]]. Each portion of the string may have a maximum of 16 alphanumeric characters (including underscores and hyphens), of which the first must be alphabetic. The default domain and organization names are those specified for your local node when it is configured. For ARPA domain names, the environment ID has the syntax label[.label[...]. The labels must follow the syntax for ARPANET host names. The envID for ARPA domain names will not be fully qualified. Refer to ARPA Domain Name Syntax in Chapter 1 “Introduction to NS 3000/iX” for more details.

For some dslineoptions, an envID can be a generic environment ID representing a set of environments. A generic environment ID can include the MPE wild card characters @, #, and ?. @ stands for zero or more alphanumeric characters, # for one numeric character, and ? for one alphanumeric character. The attributes specified for a generic environment ID will be used as defaults for all matching environments, including environments defined later from the same local session, unless overridden in a later DSLINE command. These defaults can be reset by the RESET option, which is described below.

Default: the specified nodename (which then becomes an environment ID) or, if nodename is omitted as well, the environment specified by the last DSLINE or REMOTE command.

When you are using NS names, the nodename is the name assigned to the remote node when it is configured into the NS 3000/iX network. This name may optionally be qualified in the format node[.domain[.organization]]. The default domain and organization are those of the local node. Each portion of this string may have a maximum of 16 alphanumeric characters (including underscores and hyphens), of which the first must be alphabetic. When you are using ARPA domain names, the nodename has the syntax label[.label[...]. The labels must follow the syntax for ARPANET host names. The envID for ARPA domain names will not be fully qualified. Refer to ARPA Domain Name Syntax in Chapter 1 “Introduction to NS 3000/iX” for more details.

An environment ID may be equated with this node name, or the node name (if used alone) may become its own environment ID. In either case, the environment ID then represents a specific remote session on this node. Default: the environment specified by the last DSLINE or REMOTE command.

An environment number representing a specific session on a remote node. This is the number of the environment in the message printed out following a prior DSLINE command.

Lists the status of the services on the node (local or remote) indicated by the environment ID.

One of the options described in the following paragraphs.

Specifies that no logon message be displayed when you log on to the remote environment, no logoff message be displayed when you log off, and no environment messages be displayed when a DSLINE command is executed.

Enables or disables data compression to the remote environment. The compression only affects NFT and RFA transmissions. If data compression is in effect, sequences of repeated characters (such as blanks) are translated into more compact form before transfer. They are decompressed after arrival at their destination. For a discussion of RFA compression, refer to "RFA Compression" in Chapter 3 “Remote File Access” This option may also be used with the DSCOPY command as explained in

Deletes the environment ID(s) associated with the remote environment(s). This option must be used without any other option.

Clears all information associated with a generic environment ID. This option must be used without any other option.

Requests that the attributes of a remote environment (individual or generic) be displayed.

Specifies a prompt for the remote environment. This can be used to distinguish one remote environment from another. The prompt string can be 1 to 8 characters long, optionally surrounded by quotation marks. All characters are allowed, but if the string contains a semicolon the string must be in quotes: for example, "MY;NODE". You can also use quotation marks to include a blank at the end of a prompt string. Default: the first seven letters of the (unqualified) environment name (or the whole environment name if shorter) terminated by #. If PROMPT= is specified without a prompt string, the prompt becomes the normal local prompt from the remote operating system for instance, a colon (:).

If the remote system is an MPE/iX based system, then you can also specify its prompt by using the SETVAR HPPROMPT command as explained in the MPE/iX Commands Reference Manual. If you specify that the prompt be anything other than a colon, then that specification will override any prompt created by the DSLINE option described here. The SETVAR HPPROMPT will be temporarily overridden if you leave the remote session and then return to it—after a REMOTE command, the prompt will remind you which system you are on—after you type a carriage return, the prompt will return to the one you set with SETVAR HPPROMPT. For an example, refer to the discussion under the REMOTE command.

Specifies a logon sequence for the remote system, which can be used by NFT and RPM in order to create a temporary session on the remote node. (See the NFT and RPM chapters of this manual for a discussion of when this logon will take effect.) The logon sequence must include all necessary passwords. It must be delimited by quotation marks if it contains characters which might cause it to be parsed incorrectly by the remote system.

Enables or disables tracing to the remote environment. You can trace the messages sent by any network service (VT, NFT, etc.) between your local session and the remote environment.

The trace records the actual message traffic for each intrinsic call or interactive request, including both network service headers and user-supplied data. You can also trace Transport Layer protocol activity supporting this Network Service traffic.

Other levels of tracing are available through Network InterProcess Communication and Node Management Services. The specific traceoptions parameters are:

{[[ON][,service][,file][,recs][,maxdata],TRANS]}

{[[OFF][,service]                          ]}

The service parameter can be: VT, RFA, NFT, RPM, or ALL. Through these choices, you can activate or deactivate tracing for one or all Network Services. The other parameters have the following meanings:

For further information on tracing, see the NS 3000/iX Operations and Maintenance Reference Manual.

	NOTE: The following dslineoptions are obsolete and are ignored in all cases (if used, a warning message is printed): EXCLUSIVE, FROMADDR=, FROMADR=, LINEBUF=, LOCID=, NOQUEUE, OPEN, PHNUM=, QUEUE, REMID, SELECT=, TOADDR=, and TOADR=.