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This chapter describes the Cisco Nexus 1000V commands that begin with the letter E.
To echo an argument back to the terminal screen, use the echo command.
echo [ backslash-interpret ] [ text ]
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You can use this command in a command script to display information while the script is running.
Table 5-1 lists the formatting keywords that you can insert in the text when you include the -e or backslash-interpret keyword.
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Removes the new line character at the end of the text string. |
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This example shows how to display a blank line at the command prompt:
This example shows how to display a line of text at the command prompt:
This example shows how to use a formatting option in the text string:
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To exit a configuration mode and return to privileged EXEC mode, use the end command.
network-admin
network-operator
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This command differs from the exit command in that the exit command returns you to the configuration mode you were previously in. The end command always takes you completely out of configuration mode and places you in privileged EXEC mode.
This example shows how to end the session in global configuration mode and return to privileged EXEC mode:
This example shows how to end the session in interface configuration mode and return to privileged EXEC mode:
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Exits the current command mode and returns you to the previous command mode. |
To detect the reason an interface is error-disabled, use the errdisable detect cause command. To stop error detection, use the no form of this command.
errdisable detect cause { all | link-flap | loopback }
no errdisable detect cause { all | link-flap | loopback }
Enables error-disabled disable detection on link-state flapping. |
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The error-disabled state is an operational state that is similar to the link-down state. You must enter the shutdown command and then the no shutdown command to recover an interface manually from the error-disabled state.
This example shows how to detect the cause of the error-disabled state for all applications:
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Displays the interfaces currently in the error-disabled state. |
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To enable the automatic recovery from the error-disabled (errdisable) state for an application, use the errdisable recovery cause command. To return to the default setting, use the no form of this command.
errdisable recovery cause { all bpduguard | link-flap | failed-port-state | psecure-violation | security-violation | storm-control | udld | vpc-peerlink }
no errdisable recovery cause { all | bpduguard | link-flap | psecure-violation | security-violation | storm-control | udld | vpc-peerlink }
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Use the errdisable recovery cause command to enable automatic recovery on the interface from the error-disabled state for an application. This command tries to bring the interface out of the error-disabled state and retry operation once all the causes have timed out. The interface automatically tries to come up again after 300 seconds. To change this interval, use the errdisable recovery interval command.
This example shows how to automatically recover from the error-disabled state for link flapping after you have enabled the recovery timer:
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To enable the recovery timer, use the errdisable recovery interval command.
errdisable recovery interval interval
Error detection for access list installation failures. The range is from 30 to 65535. |
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Use the errdisable recovery interval command to configure the recovery timer.
This example shows how to configure the recovery timer:
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To decode and display packet information from a file, use the ethanalyzer local read command.
ethanalyzer local read filename
Filename. The filename is alphanumeric, case-sensitive and can be up to 28 characters. |
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This example shows how to capture and display packets from a file:
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To capture packets on a given interface, use the ethanalyzer local sniff-interface command.
ethanalyzer local sniff-interface { control | inband | management } [ capture-filter | detailed-dissection | display-filter | dump-pkt| limit-captured-frames | limit-frame-size | write filename ]
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This example shows how to capture and decode packets:
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To configure the length of time, in minutes, that an inactive Telnet or Secure Shell (SSH) session remains open before it is automatically shut down, use the exec-timeout command. To remove an exec timeout setting, use the no form of this command.
Console configuration (config-console)
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When you set time to 0, exec timeout is disabled.
If a session remains inactive longer than this specified time period, then it is automatically closed.
This example shows how to configure an inactive session timeout for the console port:
This example shows how to configure an inactive session timeout for the virtual terminal:
This example shows how to remove an EXEC timeout on the console port:
n1000v#
configure terminal
n1000v(config)#
line console
n1000v(
config-console)#
no exec-timeout
n1000v(
config-console)#
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Displays the terminal configuration, including the timeout value. |
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To exit a configuration mode or exit the command-line interface (CLI), use the exit command.
network-admin
network-operator
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This example shows how to exit global configuration mode. The CLI returns you to EXEC mode:
This example shows how to exit interface configuration mode. The CLI returns you to the global configuration mode:
This example shows how to exit the CLI:
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To add an existing flow exporter to a specific flow monitor and save it in the running configuration, use the exporter command. To remove the flow exporter for a specific flow monitor, use the no form of this command.
Flow exporter that is to be added for the flow monitor. The maximum is 63, case-sensitive, alphanumeric characters. |
CLI flow monitor configuration (config-flow-monitor)
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This example shows how to add the flow exporter called Exportv9 and save it in the running configuration:
This example shows how to remove the flow exporter called Exportv9: