Nortel Networks 1000E User Manual

Page of 490
 Configuring the CS 1000E Call Server
 Page 207 of 488
Communication Server 1000E
Installation and Configuration
Configuring pseudo-terminals (PTYs)
CS 1000E provides two ports (COM1 and COM2) on the CPU. A Terminal 
Server is used to provide additional serial ports for specific applications, such 
as ACD, BGD, CTY, MCT, PMS, and TRF. Each configured Terminal 
Server serial port automatically starts an rlogin session with a user ID to a 
dedicated pseudo (PTY) port in the CS 1000E system. Nortel recommends 
configuring at least two PTYs for general use (rlogin sessions with no user 
ID). In practice, a maximum of 14 PTYs can be used, leaving 2 TTYs for 
COM1 and COM2 on the CPU card. Login to PTY is case sensitive.
Every PTY configured is given a user ID "PTYx", where x is the port number 
assigned to the PORT prompt. If no input is entered for the PORT prompt, the 
default value is the same as the TTY number. Nortel recommends using the 
default value for easy management. When an rlogin session is initiated with 
a user ID, the Call Server searches for a free PTY with a matching user ID. 
The search starts with the highest configured PTY number and progresses in 
descending order of the PTY number. If no free PTY with a matching user ID 
is found, the connection is refused. In this case, TTY012 message is printed 
on the administration terminal. When an rlogin session is initiated with no 
user ID specified, the Call Server searches for a free PTY. The search starts 
from the lowest configured PTY number and progresses in ascending order 
of the PTY number. The first available PTY is used to open the rlogin session. 
In order to minimize the probability of having a PTY configured for a specific 
application being used for general rlogin sessions, PTYs of specific 
applications are configured to start with the highest TTY number, such as 15, 
and progress in descending order. PTYs for general use are configured to start 
with the lowest number and progress in ascending order. 
Follow Procedure 50 to configure pseudo-terminals.
Procedure 50
Configuring pseudo-terminals (PTYs)
Nortel recommends that at least two PTYs be configured. A maximum of four 
PTYs can be allocated on a CS 1000E system.
1
Enter the command:
LD 17