Cisco Systems N3KC3064TFAL3 Changing an Interface Port Mode, running-config bootflash, Procedure

Configuring Ethernet Interfaces

Changing an Interface Port Mode

This example shows how to disable UDLD for an Ethernet port:

switch# configure terminal switch(config)# interface ethernet 1/4 switch(config-if)#udld disable

This example shows how to disable UDLD for the switch:

switch# configure terminal switch(config)# no feature udld

Changing an Interface Port Mode

You can configure a Quad small form-factor pluggable (QSFP+) port by using the hardware profile portmode command. To restore the defaults, use the no form of this command.

To change an interface port mode, preform this task:

Procedure

	Command or Action	Purpose
Step 1	switch# configure terminal	Enters global configuration mode.
Step 2	switch(config)# copy	Copies the running configuration to the bootflash. You
	running-config bootflash:	can use this file to configure your device later.
	my-config.cfg
Step 3	switch(config)# write erase	Removes all the interface configurations.
Step 4	switch(config)# reload	Reloads the Cisco Nexus 3000 Series switch software.
Step 5	switch(config)# [no] hardware	Changes the interface port mode.
	profile portmode portmode
Step 6	switch(config)# copy	(Optional)
	running-config startup-config	Saves the change persistently through reboots and restarts
		by copying the running configuration to the startup
		configuration.
Step 7	switch(config)# reload	Reloads the Cisco Nexus 3000 Series switch software.
		Manually apply all the interface configuration. You can
		refer to the configuration file that you saved earlier.
		Note	The interface numbering changes if the ports
			are changed from 40G mode to 4x10G mode or
			vice-versa.

This example shows how to change the port mode to 48x10g+4x40g for QSFP+ ports:

switch# configure terminal

switch(config) copy running-config bootflash:my-config.cfg switch(config)# write erase

switch(config)# reload

WARNING: This command will reboot the system Do you want to continue? (y/n) [n] y

Cisco Nexus 3000 NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)U3(1)

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