Cisco Catalyst 4500 Series Administration Guide

CHAPTER
33-1
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
33
Configuring Unidirectional Ethernet
Note Unidirectional Ethernet is not supported on the following: Catalyst 4900M, Catalyst 4948E, Supervisor
Engine 6-E, Supervisor Engine 6L-E, Supervisor Engine 7-E, and Supervisor Engine 7L-E uplinks.
This chapter describes how to configure Unidirectional Ethernet on the Catalyst 4000 family switch and
contains these sections:
• About Unidirectional Ethernet, page 33-1
• Configuring Unidirectional Ethernet, page 33-2
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 Unidirectional Ethernet
You can set stubless Gigabit Ethernet ports to unidirectionally transmit or receive traffic. Unidirectional
Ethernet uses only one strand of fiber for either transmitting or receiving one-way traffic for the Gigabit
Ethernet Port, instead of two strands of fiber for a full-duplex Gigabit Ethernet Port. Configuring your
Gigabit Ethernet Port either to transmit or receive traffic effectively doubles the amount of traffic
capabilities for applications, such as video streaming, where most traffic is sent as unacknowledged
unidirectional video broadcast streams.

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