Cisco 4500M Command Reference

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Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
78-16201-01
Chapter2Cisco IOS Commands for the Catalyst 4500 Series Switches
unidirectional
unidirectional
To configure nonblocking Gigabit Ethernet ports to unidirectionally send or receive traffic on an
interface, use the unidirectional command. To disable unidirectional communication, use the no form
of this command.
unidirectional {receive-only | send-only}
no unidirectional {receive-only | send-only}
Syntax Description
Defaults Disabled
Command Modes Interface configuration
Command History
Usage Guidelines Enabling port unidirectional mode automatically disables port UDLD. You must manually ensure that
the unidirectional link does not create a spanning tree loop in the network.
Examples This example shows how to set Gigabit Ethernet interface1/1 to receive traffic unidirectionally:
Switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# unidirectional receive-only
Switch(config-if)# end
Switch#
Related Commands show interfaces switchport
receive-only Specifies unidirectional reception.
send-only Specifies unidirectional transmission.
Release Modification
12.1(13)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English