Cisco CCNA 2 Instructor Manual page 47

4.2.3 Disconnecting and suspending Telnet sessions
Network administrators may need to establish multiple Telnet sessions. The keystroke Ctrl-
Shift-6 and then the letter X can be used to suspend a current Telnet session. The suspend
feature can be used to establish an additional Telnet session to another device. The show
sessions command displays a numbered list of current Telnet sessions like the following
example.
Conn Host
1 lab-a
* 2 lab-e
A connection can be resumed by selecting the corresponding number.
The disconnect command will terminate a specific Telnet session.
The procedure for disconnecting a Telnet session is as follows:
•
Enter the disconnect command.
•
Follow the command with the name or IP address of the router.
•
Example: Denver> disconnect paris
The procedure for suspending a Telnet session is as follows:
•
Press Ctrl-Shift-6 and then the letter X.
•
Enter the name of the router or IP address of the next connection.
Students often think that the Ctrl-Shift-6, then X sequence will terminate a Telnet session.
They need to understand that this only suspends the session. They also need to know how to
resume and terminate a session
4.2.4 Advanced Telnet operation
A user may have multiple Telnet sessions open at the same time. The number is limited by the
session limit. The user can switch between these sessions with the Ctrl-Shift-6 and then X
key sequence. To resume a Telnet session, the resume command with the session id may be
used. The connection id of all open Telnet sessions can be viewed with the show sessions
command.
Ctrl-Shift-6 then X
resume
The resume [session number] command can be used to resume a Telnet session. The
process id of a session can also be entered to resume the session.
46 - 238 CCNA 2: Routers and Routing Basics v3.1 Instructor Guide – Module 4
Address
192.168.10.1
192.168.10.1
Command
Byte Idle Conn Name
0 0 lab-a
0 0 lab-e
Purpose
Escapes the current connection and
returns to the EXEC prompt
Makes the connection
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