Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show tech-support
show tech-support
To display troubleshooting information for TAC, use the show tech-support command.
show tech-support [bridging | cef | ipmulticast | isis | password [page] | page]
Syntax Description
Defaults The defaults are as follows:
• Outputs are displayed without page breaks.
• Passwords and other security information are removed from the output.
Command Modes Privileged EXEC mode
Command History
Usage Guidelines Output from the show tech-support command may be terminated in midstream with the key
combination Ctrl+Alt+6. The command output is buffered so that the command terminates when output
of the current subcommand running under this command completes.
Press the Return key to display the next line of output, or press the Space bar to display the next page
of information. If you do not enter the page keyword, the output scrolls. It does not stop for page breaks.
If you enter the password keyword, password encryption is enabled, but only the encrypted form appears
in the output.
If you do not enter the password keyword, the passwords and other security-sensitive information in the
output are replaced in the output with the word “removed.”
The show tech-support commands are a compilation of several show commands and the output can be
quite lengthy. For a sample display of the output of the show tech-support command, see the individual
show command listed.
If you enter the show tech-support command without arguments, the output displays the equivalent of
these show commands:
• show version
• show running-config
• show stacks
bridging (Optional) Specifies bridging-related information.
cef (Optional) Specifies CEF-related information.
ipmulticast (Optional) Specifies IP multicast-related information.
isis (Optional) Specifies CLNS and ISIS-related information.
password (Optional) Includes passwords and other security information in the output.
page (Optional) Displays one page of information at a time in the output.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E