Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 2 Fundamental Ethernet Interface
Configuration Commands
3Com Corporation
2-8
[3Com -Ethernet0/0/0] mtu 1492
2.1.7 promiscuous
Syntax
promiscuous
undo promiscuous
View
Ethernet interface view
Parameter
None
Description
Use the promiscuous command to set the Ethernet interface to operate in
promiscuous mode.
Use the undo promiscuous command to disable the Ethernet interface to operate in
promiscuous mode.
By default, the Ethernet interface is operating in non-promiscuous mode.
When the Ethernet interface is operating in promiscuous mode, it receives all correct
Ethernet packets without checking their MAC addresses, This mode is configured when
network listening applies.
After you enable the bridging function on an Ethernet interface and adds it to a
bridge-set, the interface enters promiscuous mode automatically. After removed from
the bridge-set, the interface enters non-promiscuous mode automatically.
Example
# Set interface ethernet 0/0/0 to operate in promiscuous mode.
[3Com -Ethernet0/0/0] promiscuous
2.1.8 speed
Syntax
speed { 10 | 100 | 1000 | negotiation }
undo speed
View
Ethernet interface view