3com 3031 Instruccion De Instalación

C

HAPTER

 12: I

NTERFACE

 C

ONFIGURATION

 O

VERVIEW

Return to system view by executing the 

 command in interface view.

In the software, there is an interface description configuration entry for each 
physical interface on routers for the purpose of identifying the function of the 
interface.

 Perform the following configuration in interface view.

Before configuring an interface, you should make sure that you have fully 
understood the networking requirements and the networking diagram. 
Configuring an interface includes the following tasks:

■

If the interface is a physical one, you should specify its connection state, 
operating mode, and the relevant operating parameters.

■

If the interface is a WAN interface, you should configure the link layer protocol 
agreed by the connected remote interface as well as the operating parameters.

■

Assign a network protocol (such as IP) address to the interface

■

Configure the static routing of the destination network reachable through the 
interface, or configure the working parameters of the dynamic routing protocol 
on the interface.

■

If the interface supports dial-up, you should also configure parameters in Dial 
Control Center (DCC) operation and modem management.

■

If the interface is working as a master interface or standby interface in the 
backup center, you should configure the relevant backup center operating 
parameters.

■

If you want to set up a firewall on the interface, you should configure the 
parameters in packet filtering, address translation and so on.

Many parameters need to be configured in interface view. This part mainly 
introduces some specific parameter configurations of physical interfaces and 
makes a simple introduction to logical interfaces. For the sake of simplicity and 
clarity, this part will not cover the configuration in link layer and network layer 
protocols, their relevant parameters, and some special functions (such as dial, 
backup center, and firewall) that have been discussed in other parts of the manual.

This section describes how to display and debug an interface.

Table 132   Configuring interface description

Configure interface description

Restore the interface description to default

Table 133   Displaying and debugging interfaces

Display the current operating state and 
statistics of interfaces in any view

display interface [type number ]