Cisco Catalyst 4500 Series Administration Guide

CHAPTER
18-1
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
18
Configuring Layer 2 Ethernet Interfaces
This chapter describes how to use the command-line interface (CLI) to configure Fast Ethernet and
Gigabit Ethernet interfaces for Layer 2 switching on Catalyst 4500 series switches. It also provides
guidelines, procedures, and configuration examples. The configuration tasks in this chapter apply to Fast
Ethernet and Gigabit Ethernet interfaces on any module, including the uplink ports on the supervisor
engine.
This chapter includes the following major sections:
• About Layer 2 Ethernet Switching, page 18-1
• Default Layer 2 Ethernet Interface Configuration, page 18-4
• Layer 2 Interface Configuration Guidelines and Restrictions, page 18-4
• Configuring Ethernet Interfaces for Layer 2 Switching, page 18-5
Note To configure Layer 3 interfaces, see Chapter 34, “Configuring Layer 3 Interfaces.”
Note For complete syntax and usage information for the switch commands used in this chapter, see the Cisco
Catalyst 4500 Series Switch Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/hw/switches/ps4324/index.html
If a command is not in the Catalyst 4500 Series Switch Command Reference, you can locate it in the
Cisco IOS library. See the Cisco IOS Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/ps6350/index.html
About Layer 2 Ethernet Switching
The following sections describe how Layer 2 Ethernet switching works on Catalyst 4500 series switches:
• Layer 2 Ethernet Switching, page 18-2
• VLAN Trunks, page 18-3
• Layer 2 Interface Modes, page 18-3

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E