lta(4)lta(4)Namelta - lta pseudoterminal interface
The pseudoterminal interface provides support for local area transport
(LAT) service. LAT service allows users to access remote nodes through
To configure the LAT service for your machine, you must:
· Edit the system configuration file.
· Edit the file.
· Create LAT special files.
· Edit the file.
Instructions for performing these tasks are further documented in the
Guide to Ethernet Communications Servers.
Edit the Configuration File
Edit the configuration file to include the option and the and pseudo-
devices. The configuration file to edit is located in
/sys/conf/vax/HOSTNAME or /sys/conf/mips/HOSTNAME (depending on your
processor), where HOSTNAME is the name of your host processor, in
The optional value for the pseudo-device entry defines the number of
LAT lines to configure, a number between 1 and 256. If you do not
specify a value, the default is 16 lines. For example, if you want to
configure 32 LAT devices into your system, the entry for the LAT lines
To use the system as a load host for remote note maintenance functions
such as loading and controlling terminal servers, you must also include
an options entry for and a pseudo-device entry for in the configuration
Edit the /etc/rc.local File
Edit the file to restart LAT service automatically when the system
reboots. Add the following entry after the commands for local daemon
if [ -f /etc/lcp ]; then
/etc/lcp -s > /dev/console & echo -n ' lat' >/dev/console
Create LAT Special Files
Create the LAT special files by running the program from the directory
and specifying the option. You create one LAT special file for each
LAT device. For example, the following commands create 32 device spe‐
cial files for LAT devices:
# cd /dev
# MAKEDEV lta0
# MAKEDEV lta1
The option range is 1 to 7. The maximum number of LAT special files is
Edit the /etc/ttys File
Edit the file to include entries for all the LAT special files you cre‐
ated using the command. For more information on how to add these
Contains terminal devices defined to the machine.
Contains terminal devices defined to the machine (modem lines only).
See Alsottys(5), MAKEDEV(8)
Guide to Ethernet Communications Servers