Bay Networks 3395A, Configuration Manual

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Configuring the Communication Server for Xremote Support
893-826-A 7-7
and you can enter other commands or log out of the port. You can define a
different INTERNET XDM HOST for a specific query or use the XCONNECT
command with a different XDM host and attempt to reenable the Xremote
session.
To disable the process, you log out of the port from the XDM host or hang up
the modem. The session also becomes disabled if the XDM host refuses to
manage a display or if the session times out.
Several port characteristics affect whether or not a user can successfully run
an Xremote session. Table 7-2 lists these port characteristics and their
recommended settings.
If any of the MODEM CONTROL, ACCESS, TELNET REMOTE, or SPEED
port characteristics are set incorrectly, you cannot enable Xremote, and an error
message appears on the terminal indicating which characteristic is causing the
error. If the SESSION LIMIT, TYPEAHEAD SIZE, or INTERNET TCP
WINDOW SIZE characteristics are set incorrectly, you can still enable
Xremote, but the session may not run properly. The communication server does
not generate an error message.
Table 7-2. Settings for port characteristics
Characteristic Setting Notes
MODEM CONTROL ENABLED This setting ensures proper port shutdown during disconnection. Be sure
that other characteristics related to modems, such as DSRLOGOUT,
DTRWAIT, and DIALBACK, are set appropriately for your modem.
ACCESS DYNAMIC This setting allows an interactive user login, followed by the posting of a
passive network session, which Xremote requires.
SESSION LIMIT 16 The value must equal or exceed the maximum number of windows to be
supported. Sixteen is the recommended value for the SESSION LIMIT
setting when running Xremote. Be sure that the session limit on the
communication server is equal to or greater than the sum of the session
limits for each port that you plan to use. The maximum number of sessions
on a server is either 128 or 255, depending on the type of unit you have.
TYPEAHEAD SIZE 1024 The value must be appropriate to the quantity of data being transferred and
should be twice the size of the INTERNET TCP WINDOW SIZE. Although
all allowable values are valid, 1024 is the recommended value for this
setting.
INTERNET TCP
WINDOW SIZE 512 The value must be appropriate to the quantity of data being transferred.
Although all allowable values are valid, 512 is the recommended value for
this setting.
TELNET REMOTE 6000 + port-
number The value of port-number must equal the physical port number on the
communication server.
SPEED 9600 or
greater To ensure the correct port speed, you can either set it with the SPEED
characteristic, or set the AUTOBAUD characteristic to ENABLED so that
when you enable Xremote, the current speed is in a valid range. The Port
Characteristics display lists the current port speed in the "input speed" and
"output speed" fields. NCD does not recommend using port speeds below
9600 baud, and the Model 3395 server does not support port speeds below
9600 baud for Xremote.