Installation guide

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
16
Cisco IOS Release 12.3(8)T4
OL-6454-01
Note Ports do not support Dynamic Trunk Protocol (DTP). Ensure that the neighboring switch is set to a mode
that will not send DTP.
Verifying a Fast Ethernet Interface as a Layer 2 Trunk
Use the following show commands to verify the configuration of a Fast Ethernet interface as a Layer 2
trunk:
router#show running-config interfaces fastEthernet 0/3/1
Building configuration...
Current configuration: 71 bytes
!
interface FastEthernet0/3/1
switchport mode trunk
no ip address
end
router#
router#show interfaces trunk
Port Mode Encapsulation Status Native vlan
Fa0/3/1 on 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/3/1 1-1005
Port Vlans allowed and active in management domain
Fa0/3/1 1
Port Vlans in spanning tree forwarding state and not pruned
Fa0/3/1 1
router#
Configuring a Fast Ethernet Interface as Layer 2 Access
Beginning in global configuration mode, follow these steps to configure a Fast Ethernet interface as
Layer 2 access.
SUMMARY STEPS
1. interface fastethernet interface-id
2. shutdown
3. switchport mode access
4. switchport access vlan vlan _ num
5. no shutdown
6. end
Step 6
Router(config-if)# no shutdown
Activates the interface. (Required only if you shut down
the interface.)
Step 7
Router(config-if)# end
Exits configuration mode.
Command Purpose