Cisco Catalyst 4500 Series - Clearing Layer 2 Configuration

19-8
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 19 Configuring Layer 2 Ethernet Interfaces
Configuring Ethernet Interfaces for Layer 2 Switching
This example shows how to configure the Fast Ethernet interface 5/6 as an access port in VLAN 200:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fastethernet 5/6
Switch(config-if)# shutdown
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan 200
Switch(config-if)# no shutdown
Switch(config-if)# end
Switch# exit
This example shows how to verify the running configuration:
Switch# show running-config interface fastethernet 5/6
Building configuration...
!
Current configuration :33 bytes
interface FastEthernet 5/6
switchport access vlan 200
switchport mode access
end
This example shows how to verify the switch port configuration:
Switch# show interface fastethernet 5/6 switchport
Name:Fa5/6
Switchport:Enabled
Administrative Mode:dynamic auto
Operational Mode:static access
Administrative Trunking Encapsulation:negotiate
Operational Trunking Encapsulation:native
Negotiation of Trunking:On
Access Mode VLAN:1 (default)
Trunking Native Mode VLAN:1 (default)
Administrative private-vlan host-association:none
Administrative private-vlan mapping:none
Operational private-vlan:none
Trunking VLANs Enabled:ALL
Pruning VLANs Enabled:2-1001
Switch#
Clearing Layer 2 Configuration
To clear the Layer 2 configuration on an interface, perform this task:
Step 8
Switch# show running-config interface
{fastethernet | gigabitethernet} slot/port
Displays the running configuration of the interface.
Step 9
Switch# show interfaces [{fastethernet |
gigabitethernet | tengigabitethernet}
slot/port] switchport
Displays the switch port configuration of the interface.
Command Purpose
Command Purpose
Step 1
Switch(config)# default interface {fastethernet |
gigabitethernet | tengigabitethernet} slot/port
Specifies the interface to clear.
Step 2
Switch(config-if)# end
Exits interface configuration mode.