Specifications

9-56
Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Chapter 9 Switch Operating Procedures
Managing Telnet Access Features
Step 4 To verify your configuration change, enter the dspxbarmgmt command.
Managing Telnet Access Features
The Cisco MGX switches include Telnet client and server software. The Telnet server software allows
you to establish CLI management sessions with a switch using a Telnet client. The Telnet client software
allows you to log into a switch and then establish a Telnet session with another switch.
Starting with Release 5, you can disable the Telnet feature to force users to use secure sessions to access
the switch. The following sections describe how to start Telnet sessions from workstations and switches
and how to enable or disable Telnet access.
Tip For instructions on establishing secure CLI management sessions from a workstation, see “Starting a
Secure (SSH) CLI Session” in Appendix C, “Supporting and Using Additional CLI Access Options.”
For instructions on establishing secure CLI management sessions between switches, see “Starting and
Managing Secure (SSH) Access Sessions Between Switches,” which appears later in this chapter.
Starting a Telnet Session from a Workstation
For instructions on starting a Telnet session from a workstation, see “Starting a CLI Telnet Session” in
Appendix C, “Supporting and Using Additional CLI Access Options.”
Starting and Managing Telnet Sessions Between Switches
The Cisco MGX switches support Telnet sessions between switches. For example, you can start a CLI
session with one switch, Telnet to a second switch to view configuration information, then switch back
to the first switch and continue that CLI session. Each switch supports up to 15 simultaneous Telnet
sessions, and you can Telnet across multiple switches. For example, you can establish a CLI session on
switch A, Telnet to switch B, and then Telnet from switch B to switch C. The following sections describe:
• Starting a Telnet Session
• Returning to a Previous Session
• Returning to the Original CLI Session
• Displaying a Telnet Trace
Starting a Telnet Session
To start a Telnet session, enter the telnet command as follows:
mgx8830a.1.PXM.a > telnet [-E<escapeCharacter>] [-R<tracerouteCharacter>] <ipAddress>
[[0x|X|x]<tcpPort>]
You must enter an IP address with the telnet command as shown in the following example:
mgx8830a.1.PXM.a > telnet 172.29.52.88
Trying 172.29.52.88...
Connected to 172.29.52.88