S Commands

shutdown

To shut down the local traffic on an interface, use the shutdown command. To return the interface to its default operational state, use the no form of this command.

shutdown

no shutdown

Syntax Description

This command has no arguments or keywords.

Command Default

Not shut down

Command Modes

Interface configuration mode

Subinterface configuration mode

Virtual Ethernet interface 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 and subinterfaces, and virtual Ethernet interface was added.

5.1(3)N1(1)

Support for virtual Ethernet interface was added.

Usage Guidelines

You can use this command on the following interfaces:

  • Layer 2 interface (Ethernet interface, EtherChannel interface, subinterface)
  • Layer 3 interface

Note
Use the no switchport command to configure an interface as a Layer 3 interface.
  • Layer 3 subinterface
  • Management interface
  • Virtual Ethernet interface

Examples

This example shows how to shut down, or disable, a Layer 2 interface: 

switch(config)# interface ethernet 1/10
switch(config-if)# shutdown
switch(config-if)#

This example shows how to shut down a Layer 3 Ethernet subinterface: 

switch(config)# interface ethernet 1/5.1
switch(config-subif)# shutdown
switch(config-subif)#

This example shows how to shut down a virtual Ethernet interface: 

switch(config)# interface vethernet 10
switch(config-if)# shutdown
switch(config-if)#

Related Commands

Command

Description

no switchport

Converts an interface to a Layer 3 routed interface.

show interface ethernet

Displays the Ethernet interface configuration information.

show interface port-channel

Displays information on traffic about the specified EtherChannel interface.

show interface vethernet

Displays the virtual Ethernet interface configuration information.

shutdown (virtual Ethernet interface)

To shut down the local traffic on a virtual Ethernet interface, use the shutdown command. To return a virtual Ethernet interface to its default operational state, use the no form of this command.

shutdown

no shutdown

Syntax Description

This command has no arguments or keywords.

Command Default

Not shut down

Command Modes

Virtual Ethernet interface configuration mode

Command History

Release

Modification

5.1(3)N1(1)

This command was introduced.

Examples

This example shows how to shut down, or disable, a virtual Ethernet interface: 

switch# configure terminal
switch(config)# interface vethernet 10
switch(config-if)# shutdown
switch(config-if)#

Related Commands

Command

Description

show interface vethernet

Displays the virtual Ethernet interface configuration information.

speed (interface)

To configure the transmit and receive speed for an interface, use the speed command. To reset to the default speed, use the no form of this command.

speed {10 | 100 | 1000 | 10000 | auto}nospeed

Syntax Description

10

Sets the interface speed to 10 Mbps.

This speed is not supported on Cisco Nexus 5500 Series switches.

100

Sets the interface speed to 100 Mbps.

This speed is not supported on a management interface, Cisco Nexus 5500 Series switches, or the CU-96 CEM card.

1000

Sets the interface speed to 1 Gbps.

For the Cisco Nexus 5596T switch, the base board ports support 1 Gbps.

10000

Sets the interface speed to 10 Gbps. This is the default speed.

This speed is not supported on a management interface.

For the Cisco Nexus 5596T switch, the base board ports support 10 Gbps.

auto

Specifies that the speed of the interface is auto negotiated.

For the Cisco Nexus 5596T switch, you can choose auto negotiation on the 10GBase-T ports.

Command Default

The default speed is 10000 (10-Gigabit).

Command Modes

Interface configuration mode

Command History

Release

Modification

4.0(1a)N1(1)

This command was introduced.

5.1(3)N1(1)

Interface speed of 100 Mbps and the auto keyword was introduced.

Usage Guidelines

The first 8 ports of a Cisco Nexus 5010 switch and the first 16 ports of a Cisco Nexus 5020 switch are switchable 1-Gigabit and 10-Gigabit ports. The default interface speed is 10-Gigabit. To configure these ports for 1-Gigabit Ethernet, insert a 1-Gigabit Ethernet SFP transceiver into the applicable port and then set its speed with the speed command.

The first 32 ports of a Cisco Nexus 5596T switch are switchable 1-Gigabit and 10-Gigabit ports. You can also configure them to auto-negotiate to either 1-Gigabit or 10-Gigabit. The last ports 33-48 are SFP+ ports and do not support auto negotiation.

Examples

This example shows how to set the speed for a 1-Gigabit Ethernet port:

switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# speed 1000

This example shows how to set the an interface port to automatically negotiate the speed:

switch# configure terminal
switch(config)# interface ethernet 1/5
switch(config-if)# speed auto
switch(config-if)#

Related Commands

Command

Description

show interface

Displays the interface configuration information.

system default switchport shutdown

To configure all Layer 2 switchports to be Layer 3 routed ports, use the system default switchport shutdown command. To reset to the default of all Layer 2 swithports, use the no form of this command.

system default switchport shutdown

no system default switchport shutdown

Syntax Description

This command has no arguments or keywords.

Command Default

The default is all ports configured as Layer 2 switchports.

Command Modes

Global configuration mode

Command History

Release

Modification

5.2(1)N1(1)

This command was introduced.

Usage Guidelines

When the system default switchport shutdown command is issued, any switchports (including FEX HIFs) that are not configured with no shutdown command are shut down. To avoid the shutdown, configure the switchports with no shutdown command.

Examples

This example shows how to set all ports as Layer 3 routed ports: 

switch# configure terminal
switch(config)# system default switchport shutdown
switch(config)#

This example shows how to reset all ports back to Layer 2 switchports: 


switch# configure terminal
switch(config)# system default switchport shutdown
switch(config)#

Related Commands

Command

Description

show interface

Displays the interface configuration information.