Cisco Systems N5KC5596TFA manual Configuring a Subinterface, broadcast p2p, running-config command

Configuring Layer 3 Interfaces

Configuring a Subinterface

	Command or Action	Purpose
		Note	To convert a Layer 3 interface back into a Layer
			2 interface, use the switchport command.
Step 4	switch(config-if)# [ip ipv6	Configures an IP address for this interface.
	]ip-address/length
Step 5	switch(config-if)# medium	(Optional)
	{broadcast p2p}	Configures the interface medium as either point to point
		or broadcast.
		Note	The default setting is broadcast, and this setting
			does not appear in any of the show commands.
			However, if you do change the setting to p2p, you
			will see this setting when you enter the show
			running-config command.
Step 6	switch(config-if)# show interfaces	(Optional)
		Displays the Layer 3 interface statistics.
Step 7	switch(config-if)# copy	(Optional)
	running-config startup-config	Saves the change persistently through reboots and restarts
		by copying the running configuration to the startup
		configuration.

This example shows how to configure an IPv4 routed Layer 3 interface:

switch# configure terminal switch(config)# interface ethernet 2/1 switch(config-if)# no switchport switch(config-if)# ip address 192.0.2.1/8 switch(config-if)# copy running-configstartup-config

Configuring a Subinterface

Before You Begin

•Configure the parent interface as a routed interface.

•Create the port-channel interface if you want to create a subinterface on that port channel.

Procedure

	Command or Action	Purpose
Step 1	switch(config-if)# copy running-config	(Optional)
	startup-config	Saves the change persistently through reboots and
		restarts by copying the running configuration to the
		startup configuration.

Cisco Nexus 5000 Series NX-OS Interfaces Configuration Guide, Release 5.2(1)N1(1)

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