Lucent Technologies PortMaster Manual Do Utilizador

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5-1
Configuring an Asynchronous Port
5
Each asynchronous port can be configured for several different functions, giving the 
PortMaster configuration more flexibility. However, each port can carry out only one 
function at a time. For example, if a port receives a dial-in user login request, this port 
cannot be used for anything else until the current session is terminated. The port is then 
available for dial-out use or any other purpose specified when the port was configured.
This chapter discusses the following topics:
See the PortMaster Command Line Reference for more detailed command descriptions and 
instructions.
Asynchronous Port Uses
The following examples describe various uses for asynchronous ports.
Connections between Offices. Office-to-office connections can be achieved with 
either dial-up asynchronous connections or dial-up synchronous connections, 
depending on your application. Chapter 15, “Using Office-to-Office Connections,” gives 
an example of a dial-up asynchronous office-to-office connection. Chapter 12, “Using 
ISDN BRI,
” gives an example of a dial-up synchronous office-to-office connection.
Once a PortMaster is installed in each office and connected to the local Ethernet with an 
AUI, 10Base2, or 10BaseT connector, one or more asynchronous serial ports can be 
configured to dial another office or a set of offices when network traffic for the specified 
location exists. The two most common configurations are a star where multiple branch