Friday, August 22, 2008
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To display general information about the router when it reports a problem, use the show tech-support command in privileged EXEC mode
§ show tech-support [page] [password] [cef | ipmulticast | isis | mpls | ospf [process-ID | detail] | rsvp] |
Syntax |
Description |
|
page
(optional) |
§ Causes the output to display a page of information at a time
§ If not used, the output scrolls (does not stop for page breaks) |
|
password
(optional) |
§ Leaves passwords and other security information in the output
§ If not used, passwords and other security-sensitive information in the output are replaced with the label "<removed>” |
|
cef
(optional) |
§ Displays show command output specific to Cisco Express Forwarding (CEF) |
|
ipc
(optional) |
§ Displays show command output specific to Inter-Process Communications (IPC) |
|
Ipmulticast
(optional) |
§ Displays show command output related to the IP Multicast configuration, including the following information:
§ Protocol Independent Multicast (PIM)
§ Internet Group Management Protocol (IGMP)
§ Distance Vector Multicast Routing Protocol (DVMRP) |
|
isis
(optional) |
§ Displays show command output specific to Connectionless Network Service (CLNS) and ISIS |
|
mpls
(optional) |
§ Displays show command output specific to Multilayer Switching Protocol (MPLS) forwarding and applications |
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ospf [PID | detail] |
§ Displays show command output specific to Open Shortest Path First Protocol (OSPF) networking. |
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rsvp
(optional) |
§ Displays show command output specific to Resource Reservation Protocol (RSVP) networking |
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Cisco IOS Versions |
|
Release |
Modification |
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11.2 |
§ This command was introduced |
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11.3(7), 11.2(16) |
§ The output for this command was expanded to show additional information for boot, bootflash, context, and traffic for all enabled protocols |
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12.0 |
§ The output for this command was expanded to show additional information for boot, bootflash, context, and traffic for all enabled protocols
§ The cef, ipmulticast, isis, mlps, and ospf keywords were added to this command |
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12.2(13)T |
§ Support for AppleTalk EIGRP, Apollo Domain, Banyan VINES, Novell Link-State Protocol, and XNS was removed from Cisco IOS software |
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12.3(4)T |
§ The output of this command was expanded to include the output from the show inventory command |
Usage Guidelines
§ The show tech-support command is useful for collecting a large amount of information about your routing device for troubleshooting purposes. The output of this command can be provided to technical support representatives when reporting a problem.
§ Note: This command can generate a very large amount of output. You may want to redirect the output to a file using the show inventory | redirect url command syntax extension. Redirecting the output to a file also makes sending this output to your technical support representative easier. See the command documentation for show <command> | redirect for more information on this option.
§ The show tech-support command displays the output of a number of show commands at once. The output from this command will vary depending on your platform and configuration. For example, access servers will display voice-related show output. Additionally, the show protocol traffic commands will be displayed for only the protocols enabled on your device.
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The output of the show tech-support command includes the following commands |
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Command |
Description |
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show bootflash |
§ Displays the contents of boot Flash memory |
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show bootvar |
§ Displays the contents of the BOOT environment variable, the name of the configuration file pointed to by the CONFIG_FILE environment variable, the contents of the BOOTLDR environment variable, and the configuration register setting |
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show buffers |
§ Displays statistics for the buffer pools on network server |
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show clns traffic |
§ Displays a list of the CLNS packets this router has seen |
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show <command> | redirect |
§ Redirects the output of any show command to a file |
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show context |
§ Displays context data |
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show controllers |
§ Displays information that is specific to the hardware |
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show controllers tech-support |
§ Displays general information about a VIP card for problem reporting |
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show interfaces |
§ Displays ALC information |
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show inventory |
§ Displays the product inventory listing and UDI of all Cisco products installed in the networking device |
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show ip traffic |
§ Displays statistics about IP traffic |
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show processes cpu |
§ Displays information about the active processes |
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show processes memory |
§ Displays the amount of memory used |
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show region |
§ Displays region manager status information |
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show running-config |
§ Displays the current configuration of your routing device |
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show stacks |
§ Displays the stack usage of processes and interrupt routines |
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show version |
§ Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images |
Written by: Sarah Giard: Cisco Curricula Practice Owner, TEKsystems
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