The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
This chapter describes the system management commands that begin with D.
To configure the bootup diagnostic level to trigger diagnostics when the device boots, use the diagnostic bootup level command. To remove bootup diagnostic level configuration, use the no form of this command.
diagnostic bootup level { bypass | complete }
no diagnostic bootup level { bypass | complete }
Specifies that all bootup diagnostics are performed. This is the default value. |
|
|
---|---|
This example shows how to configure the bootup diagnostics level to trigger the complete diagnostics:
This example shows how to remove the bootup diagnostics level configuration:
|
|
---|---|
To add a description to an Ethernet Switched Port Analyzer (SPAN) or an Encapsulated Remote Switched Port Analyzer (ERSPAN) session configuration, use the description command. To remove the description, use the no form of this command.
String description of the SPAN session configuration. This string is limited to 80 characters. |
SPAN session configuration mode
ERSPAN session configuration mode
|
|
---|---|
Use the description command to provide a reminder in the configuration to describe what certain SPAN sessions are used for. The description appears in the output of the following commands such as show monitor session and show running-config monitor.
This example shows how to add a description for a SPAN session:
This example shows how to add a description for an ERSPAN session:
|
|
---|---|
Displays the running configuration information of a SPAN session. |
|
To configure an Encapsulated Remote Switched Port Analyzer (ERSPAN) destination IP address, use the destination command. To remove the destination ERSPAN IP address, use the no form of this command.
|
|
---|---|
You can configure only one destination IP address for an ERSPAN source session.
This example shows how to configure an ERSPAN destination IP address:
|
|
---|---|
Displays the running configuration information of a SPAN session. |
|
To configure a Switched Port Analyzer (SPAN) destination port, use the destination command. To remove the destination SPAN port, use the no form of this command.
destination interface { ethernet slot /[ QSFP-module/ ] port }
no source interface { ethernet slot /[ QSFP-module/ ] port }
SPAN session configuration mode
|
|
Each local SPAN session destination session must have a destination port (also called a monitoring port) that receives a copy of traffic from the source port.
The destination port can be any Ethernet physical port and must reside on the same switch as the source port (for a local SPAN session). The destination port cannot be a source port, a port channel, or SAN port channel group.
A destination port receives copies of sent and received traffic for all monitored source ports. If a destination port is oversubscribed, it can become congested. This congestion can affect traffic forwarding on one or more of the source ports.
This example shows how to configure an Ethernet interface SPAN destination port and activate the SPAN session:
|
|
---|---|
Displays the running configuration information of a SPAN session. |