3com 3031 Instruccion De Instalación
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138
C
HAPTER
14: WAN I
NTERFACE
C
ONFIGURATION
Perform the following configuration in AUX interface view.
The link setup mode defaults to flow mode.
Setting level detection
If the AUX interface has been disabled to make level detection, the system will
only detect whether the interface is connected to an external cable and then
report the interface state (UP or DOWN) to the user. If the interface has been
enabled to make level detection, the system will detect the DSR(Data Set Ready)
signal in addition to the external cable. The interface will be regarded UP only if
the detected DSR signal is valid. Otherwise, it will be regarded DOWN.
only detect whether the interface is connected to an external cable and then
report the interface state (UP or DOWN) to the user. If the interface has been
enabled to make level detection, the system will detect the DSR(Data Set Ready)
signal in addition to the external cable. The interface will be regarded UP only if
the detected DSR signal is valid. Otherwise, it will be regarded DOWN.
Perform the following configuration in AUX interface view.
By default, level detection is enabled.
Setting local loop
You may enable the AUX interface to make local loop for the purpose of testing
some special functions.
some special functions.
Perform the following configuration in AUX interface view.
By default, local loop is disabled.
Setting link layer protocol type
Perform the following configuration in AUX interface view.
Table 151 Setting a link setup mode on an AUX interface
Operation
Command
Configure the AUX interface to set up links with the protocol
approach
approach
async mode protocol
Configure the AUX interface to set up links with the flow
approach
approach
async mode flow
Table 152 Setting the level detection function on the AUX interface
Operation
Command
Enable the AUX interface to make level detection
detect dsr-dtr
Disable the AUX interface to make level detection
undo detect dsr-dtr
Table 153 Enabling/Disabling the AUX interface to make local loop
Operation
Command
Enable the AUX interface to make local loop
loopback
Disable the AUX interface to make local loop
undo loopback
Table 154 Setting the link layer protocol of the AUX interface
Operation
Command
Set the link layer protocol of the AUX interface to PPP
link-protocol ppp