Configuring Vlans - Cisco NM-8B-U - HW ROUTERS L-M User Manual

Configuration Tasks
Configuring an Ethernet Interface as a Layer 2 Access
To configure an Ethernet Interface as a Layer 2 access use the following commands beginning in global
configuration mode:
Command
Step 1
Router(config)# interface {ethernet |
fastethernet} slot/port
Step 2
Router(config-if)# shutdown
Step 3
Router(config-if)# switchport mode access
Step 4
Router(config-if)# switchport access vlan vlan-num
Step 5
Router(config-if)# no shutdown
Step 6
Router(config-if)# end
Verifying an Ethernet Interface as a Layer 2 Access
Step 1 Use the show running-config interface command to verify the running configuration of the interface:
Router# show running-config interface {ethernet | fastethernet} slot/port
Use the show interfaces command to verify the switch port configuration of the interface:
Step 1
Router# show interfaces [ethernet | fastethernet] slot/port switchport

Configuring VLANs

This section describes how to configure the VLANs on the Ethernet switch network modules, and it
contains the following sections:
•
•
Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
52
16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Configuring VLANs (optional)
Deleting a VLAN from the Database
Purpose
Selects the interface to configure.
(Optional) Shuts down the interface to prevent traffic
flow until configuration is complete.
Encapsulation is always dot1q.
Configures the interface as a Layer 2 access.
For access ports, specifies the access VLAN.
Activates the interface. (Required only if you shut down
the interface.)
Exits configuration mode.
(optional)