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Chapter 9
Configuring Interface Characteristics
When the metro IP access image is running on the switch, routing can be enabled on the switch.
Whenever possible, to maintain high performance, forwarding is done by the switch hardware. However,
only IP Version 4 packets with Ethernet II encapsulation can be routed in hardware. The routing function
can be enabled on all SVIs and routed ports. The switch routes only IP traffic. When IP routing protocol
parameters and address configuration are added to an SVI or routed port, any IP traffic received from
these ports is routed. For more information, see
Chapter 34, "Configuring IP Multicast Routing,"
Using Interface Configuration Mode
The switch supports these interface types:
•
•
•
You can also configure a range of interfaces (see the
page
To configure a physical interface (port), specify the interface type, the module number, and the switch port
number, and enter interface configuration mode.
•
•
•
You can identify physical interfaces by physically checking the interface location on the switch. You can
also use the show privileged EXEC commands to display information about a specific interface or all
the interfaces on the switch. The remainder of this chapter primarily provides physical interface
configuration procedures.
Procedures for Configuring Interfaces
These general instructions apply to all interface configuration processes.
Step 1
Enter the configure terminal command at the privileged EXEC prompt:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#
Step 2
Enter the interface global configuration command. Identify the interface type and the number of the
connector. In this example, Fast Ethernet port 1 is selected:
Switch(config)# interface fastethernet0/1
Switch(config-if)#
78-17058-01
Physical ports—switch ports, routed ports, UNIs, and NNIs
VLANs—switch virtual interfaces
Port-channels—EtherChannel interfaces
9-8).
Type—Fast Ethernet (fastethernet or fa) for 10/100 Mbps Ethernet, Gigabit Ethernet
(gigabitethernet or gi) for 10/100/1000 Mbps Ethernet ports, or small form-factor pluggable (SFP)
module Gigabit Ethernet interfaces.
Module number—The module or slot number on the switch (always 0 on the Cisco ME switch).
Port number—The interface number on the switch. The port numbers always begin at 1, starting with
the leftmost port when facing the front of the switch, for example, fastethernet 0/1 or gigabitethernet
0/1. If there is more than one interface type (for example, 10/100 ports and SFP module ports), the
port numbers restart with the second interface type: gigabitethernet 0/1.
Chapter 32, "Configuring IP Unicast Routing,"
and
Chapter 35, "Configuring MSDP."
"Configuring a Range of Interfaces" section on
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
Using Interface Configuration Mode
9-7
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