Default Settings For Layer 3 Interfaces; Configuring Layer 3 Interfaces; Configuring A Routed Interface - Cisco Nexus 3548 Configuration Manual

Default Settings for Layer 3 Interfaces

• If you change a Layer 2 interface to a Layer 3 interface, Cisco NX-OS shuts down the interface, reenables

Default Settings for Layer 3 Interfaces

The default setting for the Layer 3 Admin state is Shut.

Configuring Layer 3 Interfaces

Configuring a Routed Interface

SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# interface ethernet slot/port
3. switch(conifg-if)# no switchport
4. switch(config-if)# ipip-address/length
5. (Optional) switch(config-if)# medium {broadcast | p2p}
6. (Optional) switch(config-if)# show interfaces
7. (Optional) switch(config-if)# copy running-config startup-config
DETAILED STEPS
Command or Action
Step 1 switch# configure terminal
Step 2 switch(config)# interface ethernet slot/port
Step 3
switch(conifg-if)# no switchport
Step 4 switch(config-if)# ipip-address/length
Step 5 (Optional) switch(config-if)# medium {broadcast | p2p}
Step 6 (Optional) switch(config-if)# show interfaces
Cisco Nexus 3548 Switch NX-OS Interfaces Configuration Guide, Release 9x
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the interface, and deletes all configuration specific to Layer 2.
Purpose
Enters global configuration mode.
Enters interface configuration mode.
Configures the interface as a Layer 3 interface and deletes
any configuration specific to Layer 2 on this interface.
To convert a Layer 3 interface back into a Layer
Note
2 interface, use the switchport command.
Configures an IP address for this interface.
Configures the interface medium as either point to point or
broadcast.
The default setting is broadcast, and this setting
Note
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.
Displays the Layer 3 interface statistics.

Configuring Layer 3 Interfaces