Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 4 Fundamental Logical Interface
Configuration Commands
3Com Corporation
3-5
Now, the following hybrid ports exist:
Ethernet1/0/1 Ethernet1/0/2
The output indicates that the current system has two hybrid ports, Ethernet 1/0/1 and
Ethernet 1/0/2.
3.1.5 duplex
Syntax
duplex { full | half | negotiation }
undo duplex
View
Ethernet port view
Parameter
full: The port is in full duplex mode.
half: The port is in half duplex mode.
negotiation: The port is in auto-negotiation mode.
Description
Use the duplex command to configure the duplex mode of the Ethernet port.
Use the undo duplex command to restore the default duplex mode of the port, that is,
auto-negotiation.
When the port is connected to a Hub, it must operate in half duplex mode. When the
port is connected to a full duplex-supported network device that is operating in full
duplex mode, a LAN switch for example, it must operate in full duplex also.
When setting the port to auto-negotiation mode, you must ensure that the connected
port is operating in the same mode. If otherwise, you must set both ports to operate in
the same mode manually.
Related command: speed.
Example
# Set duplex mode on port Ethernet1/0/1 to auto-negotiation.
[3Com -Ethernet1/0/1] duplex negotiation
3.1.6 flow-control
Syntax
flow-control
undo flow-control