D Commands
delay (interface)
To set a delay value for an interface, use the delay command. To restore the default delay value, use the no form of this command.
delay tens-of-microseconds
no delay
Syntax Description
|
tens-of-microseconds |
Throughput delay in tens of microseconds. The range is from 1 to 16,777,215. |
Command Default
10 microseconds
Command Modes
Interface configuration mode
Subinterface configuration mode
Command History
|
Release |
Modification |
|---|---|
|
4.0(0)N1(1a) |
This command was introduced. |
|
5.0(3)N1(1) |
Support for Layer 3 interfaces was added. |
Examples
This example shows how to set a delay of 30,000 microseconds on an interface:
switch(config)# interface ethernet 1/1 switch(config-if)# delay 30000 switch(config-if)#
This example shows how to set a delay of 1000 microseconds on a subinterface:
switch(config)# interface ethernet 1/1.1 switch(config-subif)# delay 1000 switch(config-subif)#
Related Commands
|
Command |
Description |
|---|---|
|
interface ethernet (Layer 3) |
Configures an Ethernet routed interface. |
|
show interface |
Displays the interface configuration information. |
description (interface)
To add a description to an interface configuration, use the description command. To remove the description, use the no form of this command.
description description
no description
Syntax Description
|
description |
String description of the interface configuration. This string is limited to 80 characters. |
Command Default
No description is added.
Command Modes
Interface configuration mode
Subinterface configuration mode
Virtual Ethernet interface configuration
Command History
|
Release |
Modification |
|---|---|
|
4.0(0)N1(1a) |
This command was introduced. |
|
5.0(3)N1(1) |
Support for Layer 3 interfaces and virtual Ethernet interface was added. |
|
5.1(3)N1(1) |
Support for virtual Ethernet interface was added. |
Usage Guidelines
The description command is meant to provide a reminder in the configuration to describe what certain interfaces are used for. The description appears in the output of the following commands such as show interface and show running-config.
You can use this command on the following interfaces:
- Ethernet interface
- Management interface
- Subinterfaces
- Virtual Ethernet interface
Examples
This example shows how to add a description for an interface:
switch# configure terminal switch(config)# interface ethernet 1/1 switch(config-if)# description "10G Server Link" switch(config-if)#
This example shows how to add a description for a virtual Ethernet interface:
switch# configure terminal switch(config)# interface vethernet 1 switch(config-if)# description "Virtual interface" switch(config-if)#
Related Commands
|
Command |
Description |
|---|---|
|
show interface ethernet |
Displays the interface configuration information. |
|
show interface vethernet |
Displays the virtual Ethernet interface configuration information. |
|
show running-config |
Displays the contents of the currently running configuration file. |
duplex
To specify the duplex mode as full, half, or autonegotiate, use the duplex command. To return the system to default mode, use the no form of this command.
duplex { full | half | auto }
no duplex { full | half | auto }
Syntax Description
|
full |
Specifies the duplex mode as full. |
||
|
half |
Specifies the duplex mode as half.
|
||
|
auto |
Specifies the duplex mode as autonegotiate. |
Command Default
None
Command Modes
Interface
configuration mode
network-adminvdc-admin
Command History
|
Release |
Modification |
|---|---|
|
5.1(3)N1(1) |
This command was introduced. |
Usage Guidelines
The interface speed that you specify can affect the duplex mode used for an interface, so you should set the speed before setting the duplex mode. If you set the speed for autonegotiation, the duplex mode is automatically set to be autonegotiated. If you specify 10- or 100-Mbps speed, the port is automatically configured to use half-duplex mode, but you can specify full-duplex mode instead. Gigabit Ethernet is full duplex only. You cannot change the duplex mode on Gigabit Ethernet ports or on a 10/100/1000-Mbps port that is set for Gigabit Ethernet.
See the Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide for more information on interface speed and duplex settings.
This command does not require a license.
Examples
This example shows how to specify the duplex mode for full duplex:
switch# configure terminal switch(config)# interface ethernet 1/5 switch(config-if)# duplex full switch(config-if)#
Related Commands
|
Command |
Description |
|---|---|
|
show interface |
Displays information about the interface, which includes the duplex parameter. |
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