3com 3031 Instruccion De Instalación

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DCC Configuration
1035
Selects a DCC configuration method (Circular DCC or Resource-Shared DCC).
Configuring the parameters of DCC
Follow the procedure to configure the basic DCC parameters according to the 
selected DCC configuration method, e.g., a Circular DCC or Resource-Shared 
DCC, to enable the initial DCC implementation. Configure MP binding, PPP 
callback, ISDN caller identification callback, ISDN leased line, or/and auto-dial in 
addition to the basic DCC configuration if special applications are required. 
Alternatively, depending on the actual dialing link state, the user can make an 
appropriate adjustment to the attribute parameters of the DCC dial interface.
DCC Configuration
DCC configuration includes to:
Configure DCC prepared parameters
Configure Circular DCC
Configure Resource-Shared DCC
Configure MP binding for DCC
Configure PPP callback
Configure ISDN caller identification callback
Configure special DCC functions
Configure attributes of DCC Dial Interface
Configuring DCC 
prepared parameters
Regardless of which method is used, Circular DCC or Resource-Shared DCC, two 
basic DCC configuration tasks should be performed.
Configuring the mode of the physical interface
Configure the physical interface to operate in asynchronous mode for a 
synchronous/asynchronous serial interface, and enable the modem dial mode on 
the corresponding user-interface, if it is connected to an asynchronous modem. 
Configure the physical interface to operate in synchronous mode the physical 
interface is connected to a synchronous modem. For an ISDN PRI interface, this 
step can be bypassed.
Perform the following configuration in dial interface (synchronous/asynchronous 
serial interface) view.
By default, the synchronous/asynchronous serial port operates in synchronous 
mode and the asynchronous interface operates in flow mode. 
For the synchronous serial port connected to the synchronous Modem, there is no 
need to configure the 
physical-mode
 command. 
Table 1110   Configuring physical interface mode
Operation
Command
Configure the synchronous/asynchronous serial 
port to operate in asynchronous or synchronous 
mode. 
physical-mode 
{
 async | sync 
}
Configure the asynchronous serial port to 
operate in protocol mode. 
async mode 
{
 flow | protocol }
Enable Modem dialing on user-interface.
modem [ both | call-in ]