12 communicating with the telnet server, Establishing a connection, Requesting block mode – HP Integrity NonStop H-Series User Manual
Page 139: Available telnet options
12 Communicating With the TELNET Server
You can establish communications with the HP NonStop TELNET server from any system on the
network that has a TELNET client. You invoke the TELNET client at a terminal on the other system,
and the client establishes the connection with the TELNET server.
Establishing a Connection
When you request a connection to a NonStop system from your TELNET client, the TELNET server
performs the following operations:
1.
Allocates an emulated terminal subdevice for the client; for example, $ZTNT.#PTY05.
2.
Sends to the client a welcome banner that indicates the system name on which the server is
running and the terminal name.
3.
Negotiates TELNET options with the client.
a.
Displays on your terminal a list of all available services. (These services are made available
by the system manager of the server system.) After you select a service, the program that
provides the service begins executing.
4.
Starts a TACL process for you, if the system manager of the server system has not configured
any services.
Assume that you have connected to a system named mktg. The following information appears on
your screen, and you can start a TACL process to access the system:
WELCOME TO mktg.Tandem.COMM...
T9553c20 TELNET SERVER ..........
Available Services:
TACL EXIT
Enter Choice> tacl
.
.
TACL 1>
See the Guardian User's Guide for more information about using TACL.
Requesting Block Mode
If the TELNET client uses sub-option TELOPT_TTYPE during negotiation and sends one of the following
strings, the TELNET server sets the 653X emulation mode, which includes block mode:
TN6530 TN653X 6530 653X
Otherwise, the terminal is set to the normal TELNET network virtual mode only. In block mode,
more applications are available to the terminal user; for example, TEDIT on a NonStop system
operates in block mode.
The NonStop server ignores all other terminal-type options requested during negotiation with a
client program.
Available TELNET Options
describes the TELNET options supported by the TELNET server on NonStop systems. The
TELNET server does not support any other options described in the Internet Request for Comments
(RFC) 854. Note that the sub-option TELOPT-TTYPE is ignored except as described in
Establishing a Connection
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