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9
CONFIGURING LAN INTERFACE
This chapter contains information on the following topics:
■ Ethernet Interface Overview
■ Configure Ethernet Interface
■ Display and Debug Ethernet Interface
■ Typical Ethernet Interface Configuration Example
■ Troubleshooting
Ethernet Interface
Overview
Ethernet interface of the 3Com Router series comprises fast Ethernet interface.
The conventional Ethernet interface complies with 10BASE-T physical layer
specifications, working at 10 Mbps and in two modes: full duplex and half duplex.
The fast Ethernet interface complies with 100BASE-T and also 10BASE-T physical
layer specifications, working at 10 Mbps or 100 Mbps, and in two modes: half
duplex and full duplex. With the auto-negotiation capability, it can consult other
network devices to determine and automatically select the optimum working
mode and rate, thus greatly simplifying the configuration and management of the
system.
Configure Ethernet
Interface
Ethernet interface configuration includes:
■ Enter view of specified Ethernet interface
■ Set network protocol address
■ Set frame format of sending message
■ Set MTU
■ Select working rate of fast Ethernet interface
■ Select working mode of Ethernet interface
■ Enable or disable internal loopback and external loopback.
The specified Ethernet interface cannot be configured unless you enter its view. It
is necessary to configure IP address. Since there are default values for other
parameters that can enable the system to work normally in most cases, it is
recommended not to perform other configuration on Ethernet interface.
1 Enter view of specified Ethernet interface
Please use the following command in the all views.